{
"schema": "aq26_england_network_review_v3",
"status": "partial_england_network_review",
"target_area": "England",
"period_start": "2026-09-09",
"period_end": "2026-10-08",
"period_days": 30,
"period_end_rule": "latest completed source-calendar day with valid evidence in all 9 English regions",
"regions_with_valid_data_on_period_end": 9,
"configured_region_count": 9,
"regions_reporting": 9,
"region_coverage_percent": 100.0,
"active_aurn_sites_discovered": 172,
"configured_target_pollutant_station_count": 143,
"reporting_station_count": 141,
"reporting_station_coverage_percent": 98.6,
"configured_target_stream_count": 332,
"expected_configured_stream_days": 9960,
"valid_pollutant_day_observations": 9717,
"unique_station_days": 4220,
"valid_station_days": 9717,
"configured_stream_day_completeness_percent": 97.6,
"national_publication_ready": false,
"coverage_contract": {
"all_nine_english_regions_required": true,
"minimum_reporting_station_fraction": 0.85,
"minimum_configured_stream_day_fraction": 0.85,
"minimum_region_pollutant_stream_day_fraction": 0.8,
"minimum_stations_for_regional_comparison": 2,
"fixed_panel_minimum_valid_days": 27,
"configured_pollutant_streams_are_the_completeness_denominator": true
},
"completeness_scope": "valid pollutant-day observations divided by expected pollutant-day observations for every currently configured NO2, PM10 and PM2.5 stream discovered at active English AURN sites",
"configured_stream_day_completeness_formula": {
"numerator_key": "valid_pollutant_day_observations",
"denominator_key": "expected_configured_stream_days",
"unit": "pollutant-day observations",
"formula": "100 × valid pollutant-day observations / expected configured pollutant-day observations"
},
"pollutant_coverage": [
{
"pollutant": "PM2.5",
"configured_station_streams": 127,
"configured_regions": 9,
"expected_pollutant_day_observations": 3810,
"expected_station_days": 3810,
"reporting_stations": 125,
"reporting_regions": 9,
"valid_pollutant_day_observations": 3718,
"valid_station_days": 3718,
"configured_stream_day_completeness_percent": 97.6,
"all_configured_regions_reporting": true,
"coverage_status": "reporting"
},
{
"pollutant": "PM10",
"configured_station_streams": 109,
"configured_regions": 9,
"expected_pollutant_day_observations": 3270,
"expected_station_days": 3270,
"reporting_stations": 107,
"reporting_regions": 9,
"valid_pollutant_day_observations": 3184,
"valid_station_days": 3184,
"configured_stream_day_completeness_percent": 97.4,
"all_configured_regions_reporting": true,
"coverage_status": "reporting"
},
{
"pollutant": "NO2",
"configured_station_streams": 96,
"configured_regions": 9,
"expected_pollutant_day_observations": 2880,
"expected_station_days": 2880,
"reporting_stations": 96,
"reporting_regions": 9,
"valid_pollutant_day_observations": 2815,
"valid_station_days": 2815,
"configured_stream_day_completeness_percent": 97.7,
"all_configured_regions_reporting": true,
"coverage_status": "reporting"
}
],
"region_pollutant_coverage": [
{
"region": "North East",
"pollutant": "PM2.5",
"expected_pollutant_day_observations": 360,
"expected_station_days": 360,
"valid_pollutant_day_observations": 356,
"valid_station_days": 356,
"reporting_stations": 12,
"completeness_percent": 98.9,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "North East",
"pollutant": "PM10",
"expected_pollutant_day_observations": 300,
"expected_station_days": 300,
"valid_pollutant_day_observations": 296,
"valid_station_days": 296,
"reporting_stations": 10,
"completeness_percent": 98.7,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "North East",
"pollutant": "NO2",
"expected_pollutant_day_observations": 240,
"expected_station_days": 240,
"valid_pollutant_day_observations": 212,
"valid_station_days": 212,
"reporting_stations": 8,
"completeness_percent": 88.3,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "North West",
"pollutant": "PM2.5",
"expected_pollutant_day_observations": 540,
"expected_station_days": 540,
"valid_pollutant_day_observations": 531,
"valid_station_days": 531,
"reporting_stations": 18,
"completeness_percent": 98.3,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "North West",
"pollutant": "PM10",
"expected_pollutant_day_observations": 480,
"expected_station_days": 480,
"valid_pollutant_day_observations": 471,
"valid_station_days": 471,
"reporting_stations": 16,
"completeness_percent": 98.1,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "North West",
"pollutant": "NO2",
"expected_pollutant_day_observations": 510,
"expected_station_days": 510,
"valid_pollutant_day_observations": 502,
"valid_station_days": 502,
"reporting_stations": 17,
"completeness_percent": 98.4,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "Yorkshire and the Humber",
"pollutant": "PM2.5",
"expected_pollutant_day_observations": 570,
"expected_station_days": 570,
"valid_pollutant_day_observations": 570,
"valid_station_days": 570,
"reporting_stations": 19,
"completeness_percent": 100.0,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "Yorkshire and the Humber",
"pollutant": "PM10",
"expected_pollutant_day_observations": 510,
"expected_station_days": 510,
"valid_pollutant_day_observations": 505,
"valid_station_days": 505,
"reporting_stations": 17,
"completeness_percent": 99.0,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "Yorkshire and the Humber",
"pollutant": "NO2",
"expected_pollutant_day_observations": 450,
"expected_station_days": 450,
"valid_pollutant_day_observations": 450,
"valid_station_days": 450,
"reporting_stations": 15,
"completeness_percent": 100.0,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "East Midlands",
"pollutant": "PM2.5",
"expected_pollutant_day_observations": 390,
"expected_station_days": 390,
"valid_pollutant_day_observations": 387,
"valid_station_days": 387,
"reporting_stations": 13,
"completeness_percent": 99.2,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "East Midlands",
"pollutant": "PM10",
"expected_pollutant_day_observations": 330,
"expected_station_days": 330,
"valid_pollutant_day_observations": 330,
"valid_station_days": 330,
"reporting_stations": 11,
"completeness_percent": 100.0,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "East Midlands",
"pollutant": "NO2",
"expected_pollutant_day_observations": 270,
"expected_station_days": 270,
"valid_pollutant_day_observations": 261,
"valid_station_days": 261,
"reporting_stations": 9,
"completeness_percent": 96.7,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "West Midlands",
"pollutant": "PM2.5",
"expected_pollutant_day_observations": 570,
"expected_station_days": 570,
"valid_pollutant_day_observations": 569,
"valid_station_days": 569,
"reporting_stations": 19,
"completeness_percent": 99.8,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "West Midlands",
"pollutant": "PM10",
"expected_pollutant_day_observations": 540,
"expected_station_days": 540,
"valid_pollutant_day_observations": 539,
"valid_station_days": 539,
"reporting_stations": 18,
"completeness_percent": 99.8,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "West Midlands",
"pollutant": "NO2",
"expected_pollutant_day_observations": 480,
"expected_station_days": 480,
"valid_pollutant_day_observations": 468,
"valid_station_days": 468,
"reporting_stations": 16,
"completeness_percent": 97.5,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "East of England",
"pollutant": "PM2.5",
"expected_pollutant_day_observations": 210,
"expected_station_days": 210,
"valid_pollutant_day_observations": 150,
"valid_station_days": 150,
"reporting_stations": 5,
"completeness_percent": 71.4,
"meets_minimum_cell_floor": false,
"meets_national_stream_threshold": false,
"coverage_status": "below_minimum_floor"
},
{
"region": "East of England",
"pollutant": "PM10",
"expected_pollutant_day_observations": 150,
"expected_station_days": 150,
"valid_pollutant_day_observations": 120,
"valid_station_days": 120,
"reporting_stations": 4,
"completeness_percent": 80.0,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": false,
"coverage_status": "meets_minimum_floor_with_exception"
},
{
"region": "East of England",
"pollutant": "NO2",
"expected_pollutant_day_observations": 120,
"expected_station_days": 120,
"valid_pollutant_day_observations": 119,
"valid_station_days": 119,
"reporting_stations": 4,
"completeness_percent": 99.2,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "London",
"pollutant": "PM2.5",
"expected_pollutant_day_observations": 210,
"expected_station_days": 210,
"valid_pollutant_day_observations": 207,
"valid_station_days": 207,
"reporting_stations": 7,
"completeness_percent": 98.6,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "London",
"pollutant": "PM10",
"expected_pollutant_day_observations": 180,
"expected_station_days": 180,
"valid_pollutant_day_observations": 147,
"valid_station_days": 147,
"reporting_stations": 5,
"completeness_percent": 81.7,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": false,
"coverage_status": "meets_minimum_floor_with_exception"
},
{
"region": "London",
"pollutant": "NO2",
"expected_pollutant_day_observations": 120,
"expected_station_days": 120,
"valid_pollutant_day_observations": 120,
"valid_station_days": 120,
"reporting_stations": 4,
"completeness_percent": 100.0,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "South East",
"pollutant": "PM2.5",
"expected_pollutant_day_observations": 540,
"expected_station_days": 540,
"valid_pollutant_day_observations": 540,
"valid_station_days": 540,
"reporting_stations": 18,
"completeness_percent": 100.0,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "South East",
"pollutant": "PM10",
"expected_pollutant_day_observations": 480,
"expected_station_days": 480,
"valid_pollutant_day_observations": 478,
"valid_station_days": 478,
"reporting_stations": 16,
"completeness_percent": 99.6,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "South East",
"pollutant": "NO2",
"expected_pollutant_day_observations": 390,
"expected_station_days": 390,
"valid_pollutant_day_observations": 385,
"valid_station_days": 385,
"reporting_stations": 13,
"completeness_percent": 98.7,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "South West",
"pollutant": "PM2.5",
"expected_pollutant_day_observations": 420,
"expected_station_days": 420,
"valid_pollutant_day_observations": 408,
"valid_station_days": 408,
"reporting_stations": 14,
"completeness_percent": 97.1,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "South West",
"pollutant": "PM10",
"expected_pollutant_day_observations": 300,
"expected_station_days": 300,
"valid_pollutant_day_observations": 298,
"valid_station_days": 298,
"reporting_stations": 10,
"completeness_percent": 99.3,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
},
{
"region": "South West",
"pollutant": "NO2",
"expected_pollutant_day_observations": 300,
"expected_station_days": 300,
"valid_pollutant_day_observations": 298,
"valid_station_days": 298,
"reporting_stations": 10,
"completeness_percent": 99.3,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": true,
"coverage_status": "meets_national_threshold"
}
],
"regional_coverage_exceptions": [
{
"region": "East of England",
"pollutant": "PM10",
"expected_pollutant_day_observations": 150,
"expected_station_days": 150,
"valid_pollutant_day_observations": 120,
"valid_station_days": 120,
"reporting_stations": 4,
"completeness_percent": 80.0,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": false,
"coverage_status": "meets_minimum_floor_with_exception"
},
{
"region": "London",
"pollutant": "PM10",
"expected_pollutant_day_observations": 180,
"expected_station_days": 180,
"valid_pollutant_day_observations": 147,
"valid_station_days": 147,
"reporting_stations": 5,
"completeness_percent": 81.7,
"meets_minimum_cell_floor": true,
"meets_national_stream_threshold": false,
"coverage_status": "meets_minimum_floor_with_exception"
}
],
"availability": [
{
"region": "North East",
"active_aurn_sites_discovered": 13,
"configured_target_pollutant_sites": 12,
"reporting_stations": 12,
"pollutants_with_valid_daily_means": [
"NO2",
"PM10",
"PM2.5"
],
"valid_pollutant_day_observations": 864,
"valid_station_days": 864,
"coverage_status": "reporting"
},
{
"region": "North West",
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"configured_target_pollutant_sites": 23,
"reporting_stations": 23,
"pollutants_with_valid_daily_means": [
"NO2",
"PM10",
"PM2.5"
],
"valid_pollutant_day_observations": 1504,
"valid_station_days": 1504,
"coverage_status": "reporting"
},
{
"region": "Yorkshire and the Humber",
"active_aurn_sites_discovered": 21,
"configured_target_pollutant_sites": 20,
"reporting_stations": 20,
"pollutants_with_valid_daily_means": [
"NO2",
"PM10",
"PM2.5"
],
"valid_pollutant_day_observations": 1525,
"valid_station_days": 1525,
"coverage_status": "reporting"
},
{
"region": "East Midlands",
"active_aurn_sites_discovered": 17,
"configured_target_pollutant_sites": 14,
"reporting_stations": 14,
"pollutants_with_valid_daily_means": [
"NO2",
"PM10",
"PM2.5"
],
"valid_pollutant_day_observations": 978,
"valid_station_days": 978,
"coverage_status": "reporting"
},
{
"region": "West Midlands",
"active_aurn_sites_discovered": 22,
"configured_target_pollutant_sites": 22,
"reporting_stations": 22,
"pollutants_with_valid_daily_means": [
"NO2",
"PM10",
"PM2.5"
],
"valid_pollutant_day_observations": 1576,
"valid_station_days": 1576,
"coverage_status": "reporting"
},
{
"region": "East of England",
"active_aurn_sites_discovered": 15,
"configured_target_pollutant_sites": 8,
"reporting_stations": 6,
"pollutants_with_valid_daily_means": [
"NO2",
"PM10",
"PM2.5"
],
"valid_pollutant_day_observations": 389,
"valid_station_days": 389,
"coverage_status": "reporting"
},
{
"region": "London",
"active_aurn_sites_discovered": 17,
"configured_target_pollutant_sites": 7,
"reporting_stations": 7,
"pollutants_with_valid_daily_means": [
"NO2",
"PM10",
"PM2.5"
],
"valid_pollutant_day_observations": 474,
"valid_station_days": 474,
"coverage_status": "reporting"
},
{
"region": "South East",
"active_aurn_sites_discovered": 24,
"configured_target_pollutant_sites": 20,
"reporting_stations": 20,
"pollutants_with_valid_daily_means": [
"NO2",
"PM10",
"PM2.5"
],
"valid_pollutant_day_observations": 1403,
"valid_station_days": 1403,
"coverage_status": "reporting"
},
{
"region": "South West",
"active_aurn_sites_discovered": 19,
"configured_target_pollutant_sites": 17,
"reporting_stations": 17,
"pollutants_with_valid_daily_means": [
"NO2",
"PM10",
"PM2.5"
],
"valid_pollutant_day_observations": 1004,
"valid_station_days": 1004,
"coverage_status": "reporting"
}
],
"station_statistics": [
{
"region": "East Midlands",
"station_code": "CHLG",
"uka_id": "UKA00604",
"station_name": "Chesterfield Loundsley Green",
"environment_type": "Urban Background",
"pollutant": "NO2",
"valid_days": 29,
"ratified_days": 0,
"provisional_or_as_supplied_days": 29,
"period_stat_eligible": true,
"fixed_panel_eligible": true,
"period_mean_ug_m3": 5.83,
"period_median_ug_m3": 5.91,
"period_p95_daily_mean_ug_m3": 8.74,
"max_daily_mean_ug_m3": 12.1,
"days_above_who_reference": 0
},
{
"region": "East Midlands",
"station_code": "CHLG",
"uka_id": "UKA00604",
"station_name": "Chesterfield Loundsley Green",
"environment_type": "Urban Background",
"pollutant": "PM10",
"valid_days": 30,
"ratified_days": 0,
"provisional_or_as_supplied_days": 30,
"period_stat_eligible": true,
"fixed_panel_eligible": true,
"period_mean_ug_m3": 7.78,
"period_median_ug_m3": 7.31,
"period_p95_daily_mean_ug_m3": 13.76,
"max_daily_mean_ug_m3": 15.01,
"days_above_who_reference": 0
},
{
"region": "East Midlands",
"station_code": "CHLG",
"uka_id": "UKA00604",
"station_name": "Chesterfield Loundsley Green",
"environment_type": "Urban Background",
"pollutant": "PM2.5",
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"provisional_or_as_supplied_days": 30,
"period_stat_eligible": true,
"fixed_panel_eligible": true,
"period_mean_ug_m3": 4.05,
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"max_daily_mean_ug_m3": 8.28,
"days_above_who_reference": 0
},
{
"region": "East Midlands",
"station_code": "CHS7",
"uka_id": "UKA00529",
"station_name": "Chesterfield Roadside",
"environment_type": "Urban Traffic",
"pollutant": "NO2",
"valid_days": 30,
"ratified_days": 0,
"provisional_or_as_supplied_days": 30,
"period_stat_eligible": true,
"fixed_panel_eligible": true,
"period_mean_ug_m3": 10.06,
"period_median_ug_m3": 10.24,
"period_p95_daily_mean_ug_m3": 14.36,
"max_daily_mean_ug_m3": 19.01,
"days_above_who_reference": 0
},
{
"region": "East Midlands",
"station_code": "CHS7",
"uka_id": "UKA00529",
"station_name": "Chesterfield Roadside",
"environment_type": "Urban Traffic",
"pollutant": "PM10",
"valid_days": 30,
"ratified_days": 0,
"provisional_or_as_supplied_days": 30,
"period_stat_eligible": true,
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"period_mean_ug_m3": 8.45,
"period_median_ug_m3": 8.15,
"period_p95_daily_mean_ug_m3": 14.42,
"max_daily_mean_ug_m3": 15.99,
"days_above_who_reference": 0
},
{
"region": "East Midlands",
"station_code": "CHS7",
"uka_id": "UKA00529",
"station_name": "Chesterfield Roadside",
"environment_type": "Urban Traffic",
"pollutant": "PM2.5",
"valid_days": 30,
"ratified_days": 0,
"provisional_or_as_supplied_days": 30,
"period_stat_eligible": true,
"fixed_panel_eligible": true,
"period_mean_ug_m3": 4.4,
"period_median_ug_m3": 4.23,
"period_p95_daily_mean_ug_m3": 8.41,
"max_daily_mean_ug_m3": 8.89,
"days_above_who_reference": 0
},
{
"region": "East Midlands",
"station_code": "DESA",
"uka_id": "UKA00630",
"station_name": "Derby St Alkmund's Way",
"environment_type": "Urban Traffic",
"pollutant": "NO2",
"valid_days": 28,
"ratified_days": 0,
"provisional_or_as_supplied_days": 28,
"period_stat_eligible": true,
"fixed_panel_eligible": true,
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"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "PRES",
"uka_id": "UKA00408",
"region": "North West",
"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "PRES",
"uka_id": "UKA00408",
"region": "North West",
"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "PRES",
"uka_id": "UKA00408",
"region": "North West",
"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "ROCB",
"uka_id": "UKA01174",
"region": "North West",
"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "ROCB",
"uka_id": "UKA01174",
"region": "North West",
"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "ECCL",
"uka_id": "UKA00339",
"region": "North West",
"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "ECCL",
"uka_id": "UKA00339",
"region": "North West",
"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "ECCL",
"uka_id": "UKA00339",
"region": "North West",
"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "CW",
"uka_id": "UKA00579",
"region": "North West",
"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "SHLW",
"uka_id": "UKA00627",
"region": "North West",
"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "SHLW",
"uka_id": "UKA00627",
"region": "North West",
"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "TAMM",
"uka_id": "UKA01099",
"region": "North West",
"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "WARP",
"uka_id": "UKA01175",
"region": "North West",
"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "WARP",
"uka_id": "UKA01175",
"region": "North West",
"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "WARP",
"uka_id": "UKA01175",
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"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "WSMR",
"uka_id": "UKA00603",
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"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "WIG5",
"uka_id": "UKA00482",
"region": "North West",
"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "WIG5",
"uka_id": "UKA00482",
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"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "WIG5",
"uka_id": "UKA00482",
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"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "TRAN",
"uka_id": "UKA00406",
"region": "North West",
"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "TRAN",
"uka_id": "UKA00406",
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"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "TRAN",
"uka_id": "UKA00406",
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"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "BAR3",
"uka_id": "UKA00353",
"region": "Yorkshire and the Humber",
"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "BAR3",
"uka_id": "UKA00353",
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"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "BAR3",
"uka_id": "UKA00353",
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"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "BDMA",
"uka_id": "UKA00611",
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"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "BRAS",
"uka_id": "UKA01090",
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"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "BRAS",
"uka_id": "UKA01090",
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"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "BRWP",
"uka_id": "UKA01161",
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"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "BRWP",
"uka_id": "UKA01161",
"region": "Yorkshire and the Humber",
"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "DYAG",
"uka_id": "UKA00654",
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"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "DYAG",
"uka_id": "UKA00654",
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"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "DYAG",
"uka_id": "UKA00654",
"region": "Yorkshire and the Humber",
"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "DCST",
"uka_id": "UKA00612",
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"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
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},
{
"station_code": "DCST",
"uka_id": "UKA00612",
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"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "HARW",
"uka_id": "UKA01093",
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"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "HARW",
"uka_id": "UKA01093",
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"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "HUL2",
"uka_id": "UKA00450",
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"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "HUL2",
"uka_id": "UKA00450",
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"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "HUL2",
"uka_id": "UKA00450",
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"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "HULR",
"uka_id": "UKA00600",
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"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "HULR",
"uka_id": "UKA00600",
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"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "HULR",
"uka_id": "UKA00600",
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"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "IMGM",
"uka_id": "UKA00647",
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"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "IMGM",
"uka_id": "UKA00647",
"region": "Yorkshire and the Humber",
"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
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},
{
"station_code": "IMGM",
"uka_id": "UKA00647",
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"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "LEED",
"uka_id": "UKA00222",
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"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
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},
{
"station_code": "LEED",
"uka_id": "UKA00222",
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"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "LEED",
"uka_id": "UKA00222",
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"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "LED6",
"uka_id": "UKA00527",
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"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "LED6",
"uka_id": "UKA00527",
"region": "Yorkshire and the Humber",
"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "LED6",
"uka_id": "UKA00527",
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"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "ROED",
"uka_id": "UKA01054",
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"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
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},
{
"station_code": "ROED",
"uka_id": "UKA01054",
"region": "Yorkshire and the Humber",
"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "SCN2",
"uka_id": "UKA00381",
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"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
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},
{
"station_code": "SCN2",
"uka_id": "UKA00381",
"region": "Yorkshire and the Humber",
"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "SCN2",
"uka_id": "UKA00381",
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"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "SHBR",
"uka_id": "UKA00622",
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"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
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},
{
"station_code": "SHBR",
"uka_id": "UKA00622",
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"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "SHDG",
"uka_id": "UKA00575",
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"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "SHDG",
"uka_id": "UKA00575",
"region": "Yorkshire and the Humber",
"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "SHDG",
"uka_id": "UKA00575",
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"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "SHE",
"uka_id": "UKA00181",
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"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
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},
{
"station_code": "SHE",
"uka_id": "UKA00181",
"region": "Yorkshire and the Humber",
"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
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},
{
"station_code": "SHE",
"uka_id": "UKA00181",
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"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "WAKA",
"uka_id": "UKA01107",
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"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
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},
{
"station_code": "WAKA",
"uka_id": "UKA01107",
"region": "Yorkshire and the Humber",
"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "YK10",
"uka_id": "UKA00523",
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"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
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},
{
"station_code": "YK10",
"uka_id": "UKA00523",
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"pollutant": "PM10",
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"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "YK10",
"uka_id": "UKA00523",
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"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "YK11",
"uka_id": "UKA00524",
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"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
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},
{
"station_code": "YK11",
"uka_id": "UKA00524",
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"pollutant": "PM10",
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"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "YK11",
"uka_id": "UKA00524",
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"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "CHLG",
"uka_id": "UKA00604",
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"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "CHLG",
"uka_id": "UKA00604",
"region": "East Midlands",
"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "CHLG",
"uka_id": "UKA00604",
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"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "CHS7",
"uka_id": "UKA00529",
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"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
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},
{
"station_code": "CHS7",
"uka_id": "UKA00529",
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"pollutant": "PM10",
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"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "CHS7",
"uka_id": "UKA00529",
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"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "DESA",
"uka_id": "UKA00630",
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"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "DESA",
"uka_id": "UKA00630",
"region": "East Midlands",
"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "DESB",
"uka_id": "UKA01027",
"region": "East Midlands",
"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "DESB",
"uka_id": "UKA01027",
"region": "East Midlands",
"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "LEIR",
"uka_id": "UKA00609",
"region": "East Midlands",
"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "LEIR",
"uka_id": "UKA00609",
"region": "East Midlands",
"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "LEIR",
"uka_id": "UKA00609",
"region": "East Midlands",
"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "LECU",
"uka_id": "UKA00573",
"region": "East Midlands",
"pollutant": "PM2.5",
"active_start": "2026-09-09",
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},
{
"station_code": "LECU",
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},
{
"station_code": "LECU",
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},
{
"station_code": "LIN3",
"uka_id": "UKA00561",
"region": "East Midlands",
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},
{
"station_code": "LOTA",
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},
{
"station_code": "LOTA",
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},
{
"station_code": "MALA",
"uka_id": "UKA01050",
"region": "East Midlands",
"pollutant": "PM2.5",
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},
{
"station_code": "MALA",
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},
{
"station_code": "NTN4",
"uka_id": "UKA00632",
"region": "East Midlands",
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},
{
"station_code": "NTN4",
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},
{
"station_code": "NOTB",
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"region": "East Midlands",
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},
{
"station_code": "NOTB",
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},
{
"station_code": "NOTK",
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},
{
"station_code": "NOTK",
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{
"station_code": "NOTK",
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},
{
"station_code": "NWBV",
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},
{
"station_code": "NWBV",
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},
{
"station_code": "NWBV",
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},
{
"station_code": "WIGS",
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"region": "East Midlands",
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},
{
"station_code": "WIGS",
"uka_id": "UKA01176",
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},
{
"station_code": "BEDC",
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"pollutant": "PM2.5",
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},
{
"station_code": "BEDC",
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},
{
"station_code": "BIRR",
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},
{
"station_code": "BIRR",
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{
"station_code": "BIRR",
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},
{
"station_code": "BIHG",
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},
{
"station_code": "BIHG",
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{
"station_code": "BIHG",
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},
{
"station_code": "BMLD",
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},
{
"station_code": "BMLD",
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},
{
"station_code": "BMLD",
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},
{
"station_code": "BAQF",
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},
{
"station_code": "BAQF",
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},
{
"station_code": "BOTR",
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},
{
"station_code": "BOTR",
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{
"station_code": "BOTR",
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},
{
"station_code": "CANK",
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},
{
"station_code": "CANK",
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},
{
"station_code": "COAL",
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},
{
"station_code": "COAL",
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{
"station_code": "COAL",
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},
{
"station_code": "COBR",
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{
"station_code": "COBR",
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{
"station_code": "COBR",
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},
{
"station_code": "LEAM",
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},
{
"station_code": "LEAM",
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{
"station_code": "LEAM",
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},
{
"station_code": "LEAR",
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{
"station_code": "LEAR",
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{
"station_code": "LEAR",
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},
{
"station_code": "LEOM",
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},
{
"station_code": "BOLD",
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},
{
"station_code": "BOLD",
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{
"station_code": "BOLD",
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},
{
"station_code": "SHUN",
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},
{
"station_code": "SHUN",
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},
{
"station_code": "STKR",
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{
"station_code": "STKR",
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{
"station_code": "STKR",
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},
{
"station_code": "STOK",
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},
{
"station_code": "STOK",
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{
"station_code": "STOK",
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},
{
"station_code": "TDHD",
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{
"station_code": "TDHD",
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{
"station_code": "TDHD",
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},
{
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{
"station_code": "WALD",
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{
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},
{
"station_code": "WBKP",
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},
{
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},
{
"station_code": "WOLE",
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},
{
"station_code": "WORT",
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},
{
"station_code": "WORT",
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},
{
"station_code": "CAMK",
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},
{
"station_code": "CAMK",
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},
{
"station_code": "CAM",
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},
{
"station_code": "LUTR",
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},
{
"station_code": "LUTR",
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},
{
"station_code": "NO12",
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},
{
"station_code": "NO12",
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{
"station_code": "NO12",
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},
{
"station_code": "PEGE",
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},
{
"station_code": "PEGE",
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},
{
"station_code": "SOUS",
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"pollutant": "PM2.5",
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},
{
"station_code": "SOUS",
"uka_id": "UKA01096",
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},
{
"station_code": "SEND",
"uka_id": "UKA00409",
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},
{
"station_code": "SEND",
"uka_id": "UKA00409",
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},
{
"station_code": "SEND",
"uka_id": "UKA00409",
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},
{
"station_code": "STGW",
"uka_id": "UKA01156",
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},
{
"station_code": "LONC",
"uka_id": "UKA01119",
"region": "London",
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},
{
"station_code": "LONC",
"uka_id": "UKA01119",
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},
{
"station_code": "CLL2",
"uka_id": "UKA00211",
"region": "London",
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},
{
"station_code": "CLL2",
"uka_id": "UKA00211",
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},
{
"station_code": "CLL2",
"uka_id": "UKA00211",
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},
{
"station_code": "HRL",
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},
{
"station_code": "HRL",
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},
{
"station_code": "HRL",
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},
{
"station_code": "HIL",
"uka_id": "UKA00266",
"region": "London",
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},
{
"station_code": "HIL",
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},
{
"station_code": "HIL",
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},
{
"station_code": "LONM",
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},
{
"station_code": "LONM",
"uka_id": "UKA01100",
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},
{
"station_code": "TED2",
"uka_id": "UKA00572",
"region": "London",
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},
{
"station_code": "TED2",
"uka_id": "UKA00572",
"region": "London",
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},
{
"station_code": "HORS",
"uka_id": "UKA00435",
"region": "London",
"pollutant": "PM2.5",
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},
{
"station_code": "HORS",
"uka_id": "UKA00435",
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},
{
"station_code": "AYLA",
"uka_id": "UKA01109",
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},
{
"station_code": "BRT3",
"uka_id": "UKA00483",
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},
{
"station_code": "BRT3",
"uka_id": "UKA00483",
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},
{
"station_code": "BRT3",
"uka_id": "UKA00483",
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},
{
"station_code": "CHAT",
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},
{
"station_code": "CHAT",
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},
{
"station_code": "CHAT",
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},
{
"station_code": "EB",
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},
{
"station_code": "EB",
"uka_id": "UKA00546",
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"pollutant": "PM10",
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},
{
"station_code": "EB",
"uka_id": "UKA00546",
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},
{
"station_code": "FARC",
"uka_id": "UKA01097",
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},
{
"station_code": "FARC",
"uka_id": "UKA01097",
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},
{
"station_code": "MAID",
"uka_id": "UKA01064",
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"pollutant": "PM2.5",
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},
{
"station_code": "MAID",
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},
{
"station_code": "MKCC",
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},
{
"station_code": "MKCC",
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},
{
"station_code": "OX",
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},
{
"station_code": "OX8",
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},
{
"station_code": "OX8",
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},
{
"station_code": "OX8",
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},
{
"station_code": "PMTH",
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},
{
"station_code": "PMTH",
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},
{
"station_code": "PMTH",
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},
{
"station_code": "POAR",
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},
{
"station_code": "POAR",
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},
{
"station_code": "POAR",
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},
{
"station_code": "REA5",
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},
{
"station_code": "REA5",
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},
{
"station_code": "REA1",
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},
{
"station_code": "REA1",
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},
{
"station_code": "REA1",
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},
{
"station_code": "RRKL",
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},
{
"station_code": "SLOW",
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},
{
"station_code": "SLOW",
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},
{
"station_code": "SA33",
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},
{
"station_code": "SA33",
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},
{
"station_code": "SA33",
"uka_id": "UKA00613",
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},
{
"station_code": "SOUT",
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},
{
"station_code": "SOUT",
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},
{
"station_code": "SOUT",
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},
{
"station_code": "STOR",
"uka_id": "UKA00548",
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},
{
"station_code": "STOR",
"uka_id": "UKA00548",
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},
{
"station_code": "STOR",
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},
{
"station_code": "WTHG",
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},
{
"station_code": "WTHG",
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},
{
"station_code": "WOEA",
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"pollutant": "PM2.5",
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},
{
"station_code": "WOEA",
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},
{
"station_code": "BPLE",
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},
{
"station_code": "BPLE",
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},
{
"station_code": "BHA4",
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},
{
"station_code": "BORN",
"uka_id": "UKA00429",
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"pollutant": "PM2.5",
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},
{
"station_code": "BORN",
"uka_id": "UKA00429",
"region": "South West",
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},
{
"station_code": "BOBV",
"uka_id": "UKA01160",
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},
{
"station_code": "BOBV",
"uka_id": "UKA01160",
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"pollutant": "PM10",
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"expected_station_days": 30
},
{
"station_code": "BRIW",
"uka_id": "UKA01120",
"region": "South West",
"pollutant": "PM2.5",
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},
{
"station_code": "BRSP",
"uka_id": "UKA01116",
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"pollutant": "PM2.5",
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"period_end": "2026-10-08",
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},
{
"station_code": "BRSP",
"uka_id": "UKA01116",
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"pollutant": "PM10",
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},
{
"station_code": "BRS8",
"uka_id": "UKA00494",
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"pollutant": "PM2.5",
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},
{
"station_code": "BRS8",
"uka_id": "UKA00494",
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},
{
"station_code": "BRS8",
"uka_id": "UKA00494",
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},
{
"station_code": "BR11",
"uka_id": "UKA00631",
"region": "South West",
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},
{
"station_code": "BR11",
"uka_id": "UKA00631",
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},
{
"station_code": "BR11",
"uka_id": "UKA00631",
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},
{
"station_code": "CHGR",
"uka_id": "UKA01101",
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"pollutant": "PM2.5",
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"period_end": "2026-10-08",
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},
{
"station_code": "CHBR",
"uka_id": "UKA00624",
"region": "South West",
"pollutant": "PM2.5",
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"period_end": "2026-10-08",
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},
{
"station_code": "CHBR",
"uka_id": "UKA00624",
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"pollutant": "NO2",
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"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "EX",
"uka_id": "UKA00263",
"region": "South West",
"pollutant": "NO2",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "GLOT",
"uka_id": "UKA01102",
"region": "South West",
"pollutant": "PM2.5",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
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},
{
"station_code": "GLOT",
"uka_id": "UKA01102",
"region": "South West",
"pollutant": "PM10",
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"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "HONI",
"uka_id": "UKA00566",
"region": "South West",
"pollutant": "PM2.5",
"active_start": "2026-09-09",
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},
{
"station_code": "HONI",
"uka_id": "UKA00566",
"region": "South West",
"pollutant": "PM10",
"active_start": "2026-09-09",
"period_end": "2026-10-08",
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},
{
"station_code": "HONI",
"uka_id": "UKA00566",
"region": "South West",
"pollutant": "NO2",
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"period_end": "2026-10-08",
"expected_station_days": 30
},
{
"station_code": "PLYM",
"uka_id": "UKA00360",
"region": "South West",
"pollutant": "PM2.5",
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},
{
"station_code": "PLYM",
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