{"city":"Dale City","country":"United States","lat":38.63705825805664,"lon":-77.31108856201172,"range":"48h","license":"CC BY 4.0","source":"https://cerns.io","hourly":[{"datetime_utc":"2026-05-28T01:00:00Z","aqi":18,"aqi_min":4,"aqi_max":30,"pm25":4.31,"pm10":null,"stations":7},{"datetime_utc":"2026-05-28T02:00:00Z","aqi":29,"aqi_min":16,"aqi_max":41,"pm25":6.98,"pm10":null,"stations":8},{"datetime_utc":"2026-05-28T03:00:00Z","aqi":24,"aqi_min":7,"aqi_max":47,"pm25":5.71,"pm10":null,"stations":5},{"datetime_utc":"2026-05-28T04:00:00Z","aqi":25,"aqi_min":15,"aqi_max":44,"pm25":6.15,"pm10":null,"stations":8},{"datetime_utc":"2026-05-28T05:00:00Z","aqi":36,"aqi_min":19,"aqi_max":51,"pm25":8.56,"pm10":null,"stations":3},{"datetime_utc":"2026-05-28T06:00:00Z","aqi":43,"aqi_min":18,"aqi_max":61,"pm25":10.29,"pm10":null,"stations":5},{"datetime_utc":"2026-05-28T07:00:00Z","aqi":30,"aqi_min":18,"aqi_max":49,"pm25":7.31,"pm10":null,"stations":7},{"datetime_utc":"2026-05-28T08:00:00Z","aqi":28,"aqi_min":17,"aqi_max":40,"pm25":6.59,"pm10":null,"stations":6},{"datetime_utc":"2026-05-28T09:00:00Z","aqi":24,"aqi_min":20,"aqi_max":30,"pm25":5.81,"pm10":null,"stations":4},{"datetime_utc":"2026-05-28T10:00:00Z","aqi":21,"aqi_min":8,"aqi_max":27,"pm25":4.98,"pm10":null,"stations":5},{"datetime_utc":"2026-05-28T11:00:00Z","aqi":23,"aqi_min":15,"aqi_max":36,"pm25":5.46,"pm10":null,"stations":6},{"datetime_utc":"2026-05-28T12:00:00Z","aqi":29,"aqi_min":23,"aqi_max":39,"pm25":6.94,"pm10":null,"stations":3},{"datetime_utc":"2026-05-28T13:00:00Z","aqi":38,"aqi_min":24,"aqi_max":52,"pm25":9.15,"pm10":null,"stations":2},{"datetime_utc":"2026-05-28T14:00:00Z","aqi":25,"aqi_min":10,"aqi_max":46,"pm25":6.12,"pm10":null,"stations":7},{"datetime_utc":"2026-05-28T15:00:00Z","aqi":24,"aqi_min":18,"aqi_max":27,"pm25":5.72,"pm10":null,"stations":6},{"datetime_utc":"2026-05-28T16:00:00Z","aqi":28,"aqi_min":19,"aqi_max":34,"pm25":6.64,"pm10":null,"stations":10},{"datetime_utc":"2026-05-28T17:00:00Z","aqi":28,"aqi_min":19,"aqi_max":47,"pm25":6.66,"pm10":null,"stations":9},{"datetime_utc":"2026-05-28T18:00:00Z","aqi":28,"aqi_min":20,"aqi_max":36,"pm25":6.78,"pm10":null,"stations":6},{"datetime_utc":"2026-05-28T19:00:00Z","aqi":23,"aqi_min":18,"aqi_max":34,"pm25":5.46,"pm10":null,"stations":5},{"datetime_utc":"2026-05-28T20:00:00Z","aqi":31,"aqi_min":18,"aqi_max":44,"pm25":7.4,"pm10":null,"stations":6},{"datetime_utc":"2026-05-28T21:00:00Z","aqi":30,"aqi_min":16,"aqi_max":42,"pm25":7.2,"pm10":null,"stations":7},{"datetime_utc":"2026-05-28T22:00:00Z","aqi":46,"aqi_min":33,"aqi_max":52,"pm25":10.96,"pm10":null,"stations":5},{"datetime_utc":"2026-05-28T23:00:00Z","aqi":15,"aqi_min":11,"aqi_max":18,"pm25":3.54,"pm10":null,"stations":3},{"datetime_utc":"2026-05-29T00:00:00Z","aqi":18,"aqi_min":18,"aqi_max":18,"pm25":4.15,"pm10":null,"stations":1},{"datetime_utc":"2026-05-29T01:00:00Z","aqi":15,"aqi_min":10,"aqi_max":19,"pm25":3.56,"pm10":null,"stations":5},{"datetime_utc":"2026-05-29T02:00:00Z","aqi":29,"aqi_min":12,"aqi_max":61,"pm25":6.99,"pm10":null,"stations":8},{"datetime_utc":"2026-05-29T03:00:00Z","aqi":20,"aqi_min":8,"aqi_max":37,"pm25":4.85,"pm10":null,"stations":9},{"datetime_utc":"2026-05-29T04:00:00Z","aqi":22,"aqi_min":15,"aqi_max":29,"pm25":5.2,"pm10":null,"stations":8},{"datetime_utc":"2026-05-29T05:00:00Z","aqi":19,"aqi_min":9,"aqi_max":33,"pm25":4.55,"pm10":null,"stations":5},{"datetime_utc":"2026-05-29T06:00:00Z","aqi":23,"aqi_min":15,"aqi_max":30,"pm25":5.42,"pm10":null,"stations":4},{"datetime_utc":"2026-05-29T07:00:00Z","aqi":26,"aqi_min":15,"aqi_max":46,"pm25":6.31,"pm10":null,"stations":4},{"datetime_utc":"2026-05-29T08:00:00Z","aqi":29,"aqi_min":15,"aqi_max":46,"pm25":6.98,"pm10":null,"stations":5},{"datetime_utc":"2026-05-29T09:00:00Z","aqi":29,"aqi_min":14,"aqi_max":58,"pm25":6.99,"pm10":null,"stations":4},{"datetime_utc":"2026-05-29T10:00:00Z","aqi":21,"aqi_min":14,"aqi_max":30,"pm25":5.1,"pm10":null,"stations":5},{"datetime_utc":"2026-05-29T11:00:00Z","aqi":25,"aqi_min":14,"aqi_max":50,"pm25":5.87,"pm10":null,"stations":7},{"datetime_utc":"2026-05-29T12:00:00Z","aqi":29,"aqi_min":14,"aqi_max":63,"pm25":7.0,"pm10":null,"stations":8},{"datetime_utc":"2026-05-29T13:00:00Z","aqi":38,"aqi_min":14,"aqi_max":77,"pm25":9.23,"pm10":null,"stations":7},{"datetime_utc":"2026-05-29T14:00:00Z","aqi":18,"aqi_min":15,"aqi_max":25,"pm25":4.34,"pm10":null,"stations":6},{"datetime_utc":"2026-05-29T15:00:00Z","aqi":28,"aqi_min":10,"aqi_max":48,"pm25":6.7,"pm10":null,"stations":5},{"datetime_utc":"2026-05-29T16:00:00Z","aqi":29,"aqi_min":15,"aqi_max":38,"pm25":6.94,"pm10":null,"stations":4},{"datetime_utc":"2026-05-29T17:00:00Z","aqi":30,"aqi_min":15,"aqi_max":41,"pm25":7.34,"pm10":null,"stations":5},{"datetime_utc":"2026-05-29T18:00:00Z","aqi":31,"aqi_min":16,"aqi_max":49,"pm25":7.53,"pm10":null,"stations":7},{"datetime_utc":"2026-05-29T19:00:00Z","aqi":32,"aqi_min":17,"aqi_max":47,"pm25":7.62,"pm10":null,"stations":2},{"datetime_utc":"2026-05-29T20:00:00Z","aqi":39,"aqi_min":11,"aqi_max":52,"pm25":9.39,"pm10":null,"stations":9},{"datetime_utc":"2026-05-29T21:00:00Z","aqi":18,"aqi_min":16,"aqi_max":19,"pm25":4.16,"pm10":null,"stations":8},{"datetime_utc":"2026-05-29T22:00:00Z","aqi":36,"aqi_min":36,"aqi_max":36,"pm25":8.64,"pm10":null,"stations":1}],"daily":[{"date":"2026-05-28","aqi_avg":28,"aqi_min":15,"aqi_max":46,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":6.7,"pm10_avg":null,"hours":23,"stations_avg":6},{"date":"2026-05-29","aqi_avg":26,"aqi_min":15,"aqi_max":39,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":6.3,"pm10_avg":null,"hours":23,"stations_avg":6}]}