{"city":"Gaithersburg","country":"United States","lat":39.14344024658203,"lon":-77.20137023925781,"range":"48h","license":"CC BY 4.0","source":"https://cerns.io","hourly":[{"datetime_utc":"2026-07-20T09:00:00Z","aqi":68,"aqi_min":20,"aqi_max":106,"pm25":20.24,"pm10":null,"stations":32},{"datetime_utc":"2026-07-20T10:00:00Z","aqi":67,"aqi_min":21,"aqi_max":151,"pm25":19.46,"pm10":null,"stations":34},{"datetime_utc":"2026-07-20T11:00:00Z","aqi":64,"aqi_min":17,"aqi_max":119,"pm25":18.11,"pm10":null,"stations":37},{"datetime_utc":"2026-07-20T12:00:00Z","aqi":63,"aqi_min":6,"aqi_max":138,"pm25":18.05,"pm10":null,"stations":34},{"datetime_utc":"2026-07-20T13:00:00Z","aqi":59,"aqi_min":21,"aqi_max":69,"pm25":15.75,"pm10":null,"stations":32},{"datetime_utc":"2026-07-20T14:00:00Z","aqi":57,"aqi_min":6,"aqi_max":85,"pm25":14.94,"pm10":null,"stations":34},{"datetime_utc":"2026-07-20T15:00:00Z","aqi":62,"aqi_min":35,"aqi_max":88,"pm25":17.43,"pm10":null,"stations":30},{"datetime_utc":"2026-07-20T16:00:00Z","aqi":61,"aqi_min":5,"aqi_max":71,"pm25":16.92,"pm10":null,"stations":31},{"datetime_utc":"2026-07-20T17:00:00Z","aqi":65,"aqi_min":26,"aqi_max":89,"pm25":18.68,"pm10":null,"stations":33},{"datetime_utc":"2026-07-20T18:00:00Z","aqi":65,"aqi_min":25,"aqi_max":75,"pm25":18.66,"pm10":null,"stations":34},{"datetime_utc":"2026-07-20T19:00:00Z","aqi":70,"aqi_min":20,"aqi_max":89,"pm25":21.13,"pm10":null,"stations":36},{"datetime_utc":"2026-07-20T20:00:00Z","aqi":72,"aqi_min":38,"aqi_max":130,"pm25":22.18,"pm10":null,"stations":35},{"datetime_utc":"2026-07-20T21:00:00Z","aqi":72,"aqi_min":16,"aqi_max":84,"pm25":22.31,"pm10":null,"stations":30},{"datetime_utc":"2026-07-20T22:00:00Z","aqi":65,"aqi_min":44,"aqi_max":94,"pm25":18.82,"pm10":null,"stations":6},{"datetime_utc":"2026-07-20T23:00:00Z","aqi":72,"aqi_min":13,"aqi_max":88,"pm25":21.88,"pm10":null,"stations":30},{"datetime_utc":"2026-07-21T00:00:00Z","aqi":73,"aqi_min":36,"aqi_max":86,"pm25":22.57,"pm10":null,"stations":33},{"datetime_utc":"2026-07-21T01:00:00Z","aqi":76,"aqi_min":57,"aqi_max":86,"pm25":23.79,"pm10":null,"stations":32},{"datetime_utc":"2026-07-21T02:00:00Z","aqi":73,"aqi_min":36,"aqi_max":124,"pm25":22.38,"pm10":null,"stations":31},{"datetime_utc":"2026-07-21T03:00:00Z","aqi":70,"aqi_min":19,"aqi_max":81,"pm25":21.13,"pm10":null,"stations":31},{"datetime_utc":"2026-07-21T04:00:00Z","aqi":67,"aqi_min":15,"aqi_max":80,"pm25":19.65,"pm10":null,"stations":35},{"datetime_utc":"2026-07-21T05:00:00Z","aqi":69,"aqi_min":9,"aqi_max":79,"pm25":20.63,"pm10":null,"stations":31},{"datetime_utc":"2026-07-21T06:00:00Z","aqi":65,"aqi_min":17,"aqi_max":76,"pm25":18.56,"pm10":null,"stations":34},{"datetime_utc":"2026-07-21T07:00:00Z","aqi":64,"aqi_min":19,"aqi_max":74,"pm25":18.2,"pm10":null,"stations":32},{"datetime_utc":"2026-07-21T08:00:00Z","aqi":62,"aqi_min":5,"aqi_max":99,"pm25":17.13,"pm10":null,"stations":34},{"datetime_utc":"2026-07-21T09:00:00Z","aqi":58,"aqi_min":17,"aqi_max":66,"pm25":15.56,"pm10":null,"stations":31},{"datetime_utc":"2026-07-21T10:00:00Z","aqi":55,"aqi_min":25,"aqi_max":63,"pm25":13.93,"pm10":null,"stations":32},{"datetime_utc":"2026-07-21T11:00:00Z","aqi":53,"aqi_min":1,"aqi_max":79,"pm25":12.9,"pm10":null,"stations":36},{"datetime_utc":"2026-07-21T12:00:00Z","aqi":50,"aqi_min":32,"aqi_max":65,"pm25":11.86,"pm10":null,"stations":30},{"datetime_utc":"2026-07-21T13:00:00Z","aqi":51,"aqi_min":23,"aqi_max":72,"pm25":12.24,"pm10":null,"stations":8},{"datetime_utc":"2026-07-21T14:00:00Z","aqi":36,"aqi_min":5,"aqi_max":43,"pm25":8.66,"pm10":null,"stations":29},{"datetime_utc":"2026-07-21T15:00:00Z","aqi":47,"aqi_min":25,"aqi_max":90,"pm25":11.15,"pm10":null,"stations":34},{"datetime_utc":"2026-07-21T16:00:00Z","aqi":38,"aqi_min":25,"aqi_max":52,"pm25":8.96,"pm10":null,"stations":27},{"datetime_utc":"2026-07-21T17:00:00Z","aqi":37,"aqi_min":25,"aqi_max":49,"pm25":8.84,"pm10":null,"stations":27},{"datetime_utc":"2026-07-21T18:00:00Z","aqi":39,"aqi_min":25,"aqi_max":61,"pm25":9.27,"pm10":null,"stations":28},{"datetime_utc":"2026-07-21T19:00:00Z","aqi":41,"aqi_min":21,"aqi_max":62,"pm25":9.76,"pm10":null,"stations":35},{"datetime_utc":"2026-07-21T20:00:00Z","aqi":38,"aqi_min":21,"aqi_max":59,"pm25":9.17,"pm10":null,"stations":34},{"datetime_utc":"2026-07-21T21:00:00Z","aqi":36,"aqi_min":13,"aqi_max":95,"pm25":8.6,"pm10":null,"stations":36},{"datetime_utc":"2026-07-21T22:00:00Z","aqi":32,"aqi_min":20,"aqi_max":56,"pm25":7.56,"pm10":null,"stations":31},{"datetime_utc":"2026-07-21T23:00:00Z","aqi":31,"aqi_min":19,"aqi_max":59,"pm25":7.44,"pm10":null,"stations":33},{"datetime_utc":"2026-07-22T00:00:00Z","aqi":28,"aqi_min":16,"aqi_max":55,"pm25":6.84,"pm10":null,"stations":38},{"datetime_utc":"2026-07-22T01:00:00Z","aqi":27,"aqi_min":16,"aqi_max":73,"pm25":6.39,"pm10":null,"stations":32},{"datetime_utc":"2026-07-22T02:00:00Z","aqi":21,"aqi_min":13,"aqi_max":62,"pm25":5.08,"pm10":null,"stations":32},{"datetime_utc":"2026-07-22T03:00:00Z","aqi":23,"aqi_min":6,"aqi_max":68,"pm25":5.64,"pm10":null,"stations":34},{"datetime_utc":"2026-07-22T04:00:00Z","aqi":18,"aqi_min":10,"aqi_max":41,"pm25":4.17,"pm10":null,"stations":35},{"datetime_utc":"2026-07-22T05:00:00Z","aqi":16,"aqi_min":10,"aqi_max":47,"pm25":3.86,"pm10":null,"stations":32},{"datetime_utc":"2026-07-22T06:00:00Z","aqi":15,"aqi_min":10,"aqi_max":33,"pm25":3.73,"pm10":null,"stations":32},{"datetime_utc":"2026-07-22T07:00:00Z","aqi":17,"aqi_min":7,"aqi_max":27,"pm25":4.14,"pm10":null,"stations":4}],"daily":[{"date":"2026-07-20","aqi_avg":65,"aqi_min":57,"aqi_max":72,"aqi_color":"#d97706","aqi_label":"Moderate","pm25_avg":19.0,"pm10_avg":null,"hours":15,"stations_avg":31},{"date":"2026-07-21","aqi_avg":53,"aqi_min":31,"aqi_max":76,"aqi_color":"#d97706","aqi_label":"Moderate","pm25_avg":14.2,"pm10_avg":null,"hours":24,"stations_avg":31},{"date":"2026-07-22","aqi_avg":21,"aqi_min":15,"aqi_max":28,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":5.0,"pm10_avg":null,"hours":8,"stations_avg":30}]}