{"city":"Ontario","country":"United States","lat":34.06333923339844,"lon":-117.65088653564453,"range":"48h","license":"CC BY 4.0","source":"https://cerns.io","hourly":[{"datetime_utc":"2026-07-20T00:00:00Z","aqi":8,"aqi_min":8,"aqi_max":8,"pm25":2.0,"pm10":2.0,"stations":1},{"datetime_utc":"2026-07-20T01:00:00Z","aqi":29,"aqi_min":3,"aqi_max":51,"pm25":7.04,"pm10":2.96,"stations":4},{"datetime_utc":"2026-07-20T02:00:00Z","aqi":40,"aqi_min":9,"aqi_max":57,"pm25":9.57,"pm10":5.43,"stations":22},{"datetime_utc":"2026-07-20T03:00:00Z","aqi":39,"aqi_min":1,"aqi_max":52,"pm25":9.39,"pm10":4.72,"stations":22},{"datetime_utc":"2026-07-20T04:00:00Z","aqi":40,"aqi_min":1,"aqi_max":54,"pm25":9.64,"pm10":6.64,"stations":23},{"datetime_utc":"2026-07-20T05:00:00Z","aqi":41,"aqi_min":2,"aqi_max":56,"pm25":9.83,"pm10":6.35,"stations":23},{"datetime_utc":"2026-07-20T06:00:00Z","aqi":45,"aqi_min":1,"aqi_max":61,"pm25":10.73,"pm10":7.25,"stations":23},{"datetime_utc":"2026-07-20T07:00:00Z","aqi":43,"aqi_min":1,"aqi_max":59,"pm25":10.42,"pm10":7.15,"stations":25},{"datetime_utc":"2026-07-20T08:00:00Z","aqi":48,"aqi_min":0,"aqi_max":61,"pm25":11.43,"pm10":9.58,"stations":21},{"datetime_utc":"2026-07-20T09:00:00Z","aqi":49,"aqi_min":1,"aqi_max":70,"pm25":11.78,"pm10":12.22,"stations":21},{"datetime_utc":"2026-07-20T10:00:00Z","aqi":48,"aqi_min":1,"aqi_max":61,"pm25":11.53,"pm10":9.17,"stations":21},{"datetime_utc":"2026-07-20T11:00:00Z","aqi":47,"aqi_min":1,"aqi_max":66,"pm25":11.25,"pm10":10.12,"stations":23},{"datetime_utc":"2026-07-20T12:00:00Z","aqi":46,"aqi_min":1,"aqi_max":63,"pm25":11.12,"pm10":9.69,"stations":23},{"datetime_utc":"2026-07-20T13:00:00Z","aqi":49,"aqi_min":1,"aqi_max":63,"pm25":11.72,"pm10":9.58,"stations":26},{"datetime_utc":"2026-07-20T14:00:00Z","aqi":52,"aqi_min":1,"aqi_max":68,"pm25":12.47,"pm10":10.16,"stations":22},{"datetime_utc":"2026-07-20T15:00:00Z","aqi":54,"aqi_min":5,"aqi_max":90,"pm25":13.36,"pm10":10.25,"stations":25},{"datetime_utc":"2026-07-20T16:00:00Z","aqi":52,"aqi_min":4,"aqi_max":91,"pm25":12.58,"pm10":6.05,"stations":24},{"datetime_utc":"2026-07-20T17:00:00Z","aqi":47,"aqi_min":5,"aqi_max":56,"pm25":11.23,"pm10":7.09,"stations":24},{"datetime_utc":"2026-07-20T18:00:00Z","aqi":53,"aqi_min":5,"aqi_max":122,"pm25":12.89,"pm10":6.13,"stations":24},{"datetime_utc":"2026-07-20T19:00:00Z","aqi":46,"aqi_min":7,"aqi_max":107,"pm25":11.14,"pm10":3.49,"stations":26},{"datetime_utc":"2026-07-20T20:00:00Z","aqi":52,"aqi_min":2,"aqi_max":102,"pm25":12.84,"pm10":4.93,"stations":25},{"datetime_utc":"2026-07-20T21:00:00Z","aqi":40,"aqi_min":4,"aqi_max":62,"pm25":9.46,"pm10":3.52,"stations":25},{"datetime_utc":"2026-07-20T22:00:00Z","aqi":58,"aqi_min":6,"aqi_max":84,"pm25":15.32,"pm10":6.27,"stations":4},{"datetime_utc":"2026-07-20T23:00:00Z","aqi":42,"aqi_min":26,"aqi_max":59,"pm25":10.05,"pm10":9.04,"stations":24},{"datetime_utc":"2026-07-21T00:00:00Z","aqi":39,"aqi_min":9,"aqi_max":57,"pm25":9.42,"pm10":4.27,"stations":23},{"datetime_utc":"2026-07-21T01:00:00Z","aqi":43,"aqi_min":4,"aqi_max":106,"pm25":10.27,"pm10":4.55,"stations":24},{"datetime_utc":"2026-07-21T02:00:00Z","aqi":38,"aqi_min":3,"aqi_max":65,"pm25":9.13,"pm10":3.97,"stations":23},{"datetime_utc":"2026-07-21T03:00:00Z","aqi":36,"aqi_min":1,"aqi_max":67,"pm25":8.73,"pm10":3.27,"stations":25},{"datetime_utc":"2026-07-21T04:00:00Z","aqi":35,"aqi_min":1,"aqi_max":65,"pm25":8.53,"pm10":3.15,"stations":22},{"datetime_utc":"2026-07-21T05:00:00Z","aqi":36,"aqi_min":1,"aqi_max":63,"pm25":8.62,"pm10":4.15,"stations":24},{"datetime_utc":"2026-07-21T06:00:00Z","aqi":35,"aqi_min":1,"aqi_max":59,"pm25":8.41,"pm10":3.58,"stations":22},{"datetime_utc":"2026-07-21T07:00:00Z","aqi":38,"aqi_min":0,"aqi_max":78,"pm25":9.12,"pm10":3.09,"stations":23},{"datetime_utc":"2026-07-21T08:00:00Z","aqi":35,"aqi_min":0,"aqi_max":58,"pm25":8.51,"pm10":4.55,"stations":22},{"datetime_utc":"2026-07-21T09:00:00Z","aqi":32,"aqi_min":0,"aqi_max":43,"pm25":7.66,"pm10":2.76,"stations":23},{"datetime_utc":"2026-07-21T10:00:00Z","aqi":37,"aqi_min":18,"aqi_max":72,"pm25":8.83,"pm10":9.0,"stations":22},{"datetime_utc":"2026-07-21T11:00:00Z","aqi":30,"aqi_min":1,"aqi_max":41,"pm25":7.21,"pm10":4.08,"stations":24},{"datetime_utc":"2026-07-21T12:00:00Z","aqi":31,"aqi_min":5,"aqi_max":41,"pm25":7.52,"pm10":5.6,"stations":25},{"datetime_utc":"2026-07-21T13:00:00Z","aqi":19,"aqi_min":0,"aqi_max":38,"pm25":4.55,"pm10":6.05,"stations":2},{"datetime_utc":"2026-07-21T14:00:00Z","aqi":38,"aqi_min":1,"aqi_max":88,"pm25":8.98,"pm10":3.2,"stations":22},{"datetime_utc":"2026-07-21T15:00:00Z","aqi":36,"aqi_min":1,"aqi_max":61,"pm25":8.65,"pm10":3.13,"stations":22},{"datetime_utc":"2026-07-21T16:00:00Z","aqi":35,"aqi_min":2,"aqi_max":46,"pm25":8.38,"pm10":4.28,"stations":21},{"datetime_utc":"2026-07-21T17:00:00Z","aqi":37,"aqi_min":2,"aqi_max":77,"pm25":8.91,"pm10":2.72,"stations":22},{"datetime_utc":"2026-07-21T18:00:00Z","aqi":51,"aqi_min":3,"aqi_max":114,"pm25":12.23,"pm10":3.48,"stations":27},{"datetime_utc":"2026-07-21T19:00:00Z","aqi":35,"aqi_min":2,"aqi_max":55,"pm25":8.39,"pm10":3.69,"stations":22},{"datetime_utc":"2026-07-21T20:00:00Z","aqi":35,"aqi_min":2,"aqi_max":57,"pm25":8.35,"pm10":3.87,"stations":23},{"datetime_utc":"2026-07-21T21:00:00Z","aqi":42,"aqi_min":4,"aqi_max":82,"pm25":10.06,"pm10":4.54,"stations":25},{"datetime_utc":"2026-07-21T22:00:00Z","aqi":40,"aqi_min":2,"aqi_max":79,"pm25":9.62,"pm10":2.43,"stations":26},{"datetime_utc":"2026-07-21T23:00:00Z","aqi":7,"aqi_min":2,"aqi_max":12,"pm25":1.72,"pm10":1.83,"stations":2}],"daily":[{"date":"2026-07-20","aqi_avg":44,"aqi_min":8,"aqi_max":58,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":10.8,"pm10_avg":7.1,"hours":24,"stations_avg":21},{"date":"2026-07-21","aqi_avg":35,"aqi_min":7,"aqi_max":51,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":8.4,"pm10_avg":4.0,"hours":24,"stations_avg":22}]}