air_quality: 20
This data as json
| rowid | muni_id | county_fips | county_name | state | year | days_with_aqi | good_days | moderate_days | days_unhealthy | max_aqi | p90_aqi | median_aqi | source_url | data_license | updated_at |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20 | 15 | 08031 | Denver | CO | 2023 | 365 | 131 | 228 | 6 | 179 | 77 | 54 | https://aqs.epa.gov/aqsweb/airdata/annual_aqi_by_county_2023.zip | US EPA — PUBLIC DOMAIN (safe for CC-BY public dataset + commercial) | 2026-08-01 08:17:39 |