{"city":"Chengjiang","country":"China","lat":29.87194061279297,"lon":106.3846664428711,"range":"48h","license":"CC BY 4.0","source":"https://cerns.io","hourly":[{"datetime_utc":"2026-06-07T12:00:00Z","aqi":62,"aqi_min":23,"aqi_max":93,"pm25":17.55,"pm10":null,"stations":15},{"datetime_utc":"2026-06-07T13:00:00Z","aqi":50,"aqi_min":25,"aqi_max":114,"pm25":11.95,"pm10":null,"stations":19},{"datetime_utc":"2026-06-07T14:00:00Z","aqi":55,"aqi_min":15,"aqi_max":85,"pm25":13.83,"pm10":null,"stations":28},{"datetime_utc":"2026-06-07T15:00:00Z","aqi":45,"aqi_min":16,"aqi_max":109,"pm25":10.87,"pm10":null,"stations":28},{"datetime_utc":"2026-06-07T16:00:00Z","aqi":43,"aqi_min":14,"aqi_max":91,"pm25":10.34,"pm10":null,"stations":22},{"datetime_utc":"2026-06-07T17:00:00Z","aqi":51,"aqi_min":15,"aqi_max":80,"pm25":12.31,"pm10":null,"stations":26},{"datetime_utc":"2026-06-07T18:00:00Z","aqi":48,"aqi_min":20,"aqi_max":114,"pm25":11.49,"pm10":null,"stations":15},{"datetime_utc":"2026-06-07T19:00:00Z","aqi":46,"aqi_min":13,"aqi_max":76,"pm25":10.97,"pm10":null,"stations":39},{"datetime_utc":"2026-06-07T20:00:00Z","aqi":44,"aqi_min":21,"aqi_max":91,"pm25":10.55,"pm10":null,"stations":27},{"datetime_utc":"2026-06-07T21:00:00Z","aqi":40,"aqi_min":16,"aqi_max":82,"pm25":9.58,"pm10":null,"stations":12},{"datetime_utc":"2026-06-07T22:00:00Z","aqi":56,"aqi_min":13,"aqi_max":153,"pm25":14.47,"pm10":null,"stations":16},{"datetime_utc":"2026-06-07T23:00:00Z","aqi":64,"aqi_min":34,"aqi_max":119,"pm25":18.27,"pm10":null,"stations":11},{"datetime_utc":"2026-06-08T00:00:00Z","aqi":48,"aqi_min":22,"aqi_max":87,"pm25":11.41,"pm10":null,"stations":24},{"datetime_utc":"2026-06-08T01:00:00Z","aqi":50,"aqi_min":11,"aqi_max":99,"pm25":12.05,"pm10":null,"stations":23},{"datetime_utc":"2026-06-08T02:00:00Z","aqi":48,"aqi_min":12,"aqi_max":82,"pm25":11.45,"pm10":null,"stations":23},{"datetime_utc":"2026-06-08T03:00:00Z","aqi":56,"aqi_min":27,"aqi_max":91,"pm25":14.36,"pm10":null,"stations":9},{"datetime_utc":"2026-06-08T04:00:00Z","aqi":59,"aqi_min":27,"aqi_max":85,"pm25":15.77,"pm10":null,"stations":17},{"datetime_utc":"2026-06-08T05:00:00Z","aqi":50,"aqi_min":11,"aqi_max":80,"pm25":12.03,"pm10":null,"stations":29},{"datetime_utc":"2026-06-08T06:00:00Z","aqi":43,"aqi_min":16,"aqi_max":72,"pm25":10.36,"pm10":null,"stations":26},{"datetime_utc":"2026-06-08T07:00:00Z","aqi":52,"aqi_min":20,"aqi_max":93,"pm25":12.44,"pm10":null,"stations":22},{"datetime_utc":"2026-06-08T08:00:00Z","aqi":42,"aqi_min":19,"aqi_max":74,"pm25":10.07,"pm10":null,"stations":20},{"datetime_utc":"2026-06-08T09:00:00Z","aqi":52,"aqi_min":12,"aqi_max":85,"pm25":12.73,"pm10":null,"stations":10},{"datetime_utc":"2026-06-08T10:00:00Z","aqi":38,"aqi_min":13,"aqi_max":58,"pm25":9.23,"pm10":null,"stations":23},{"datetime_utc":"2026-06-08T11:00:00Z","aqi":40,"aqi_min":17,"aqi_max":72,"pm25":9.68,"pm10":null,"stations":10},{"datetime_utc":"2026-06-08T12:00:00Z","aqi":45,"aqi_min":7,"aqi_max":78,"pm25":10.76,"pm10":null,"stations":16},{"datetime_utc":"2026-06-08T13:00:00Z","aqi":40,"aqi_min":15,"aqi_max":74,"pm25":9.46,"pm10":null,"stations":16},{"datetime_utc":"2026-06-08T14:00:00Z","aqi":35,"aqi_min":7,"aqi_max":63,"pm25":8.47,"pm10":null,"stations":28},{"datetime_utc":"2026-06-08T15:00:00Z","aqi":52,"aqi_min":13,"aqi_max":95,"pm25":12.49,"pm10":null,"stations":21},{"datetime_utc":"2026-06-08T16:00:00Z","aqi":37,"aqi_min":21,"aqi_max":59,"pm25":8.89,"pm10":null,"stations":10},{"datetime_utc":"2026-06-08T17:00:00Z","aqi":35,"aqi_min":14,"aqi_max":74,"pm25":8.38,"pm10":null,"stations":24},{"datetime_utc":"2026-06-08T18:00:00Z","aqi":44,"aqi_min":17,"aqi_max":65,"pm25":10.5,"pm10":null,"stations":13},{"datetime_utc":"2026-06-08T19:00:00Z","aqi":46,"aqi_min":15,"aqi_max":129,"pm25":11.13,"pm10":null,"stations":29},{"datetime_utc":"2026-06-08T20:00:00Z","aqi":43,"aqi_min":21,"aqi_max":59,"pm25":10.25,"pm10":null,"stations":12},{"datetime_utc":"2026-06-08T21:00:00Z","aqi":63,"aqi_min":14,"aqi_max":161,"pm25":17.81,"pm10":null,"stations":15},{"datetime_utc":"2026-06-08T22:00:00Z","aqi":38,"aqi_min":12,"aqi_max":75,"pm25":9.18,"pm10":null,"stations":17},{"datetime_utc":"2026-06-08T23:00:00Z","aqi":50,"aqi_min":17,"aqi_max":91,"pm25":11.88,"pm10":null,"stations":21},{"datetime_utc":"2026-06-09T00:00:00Z","aqi":55,"aqi_min":13,"aqi_max":109,"pm25":13.93,"pm10":null,"stations":18},{"datetime_utc":"2026-06-09T01:00:00Z","aqi":35,"aqi_min":13,"aqi_max":70,"pm25":8.36,"pm10":null,"stations":28},{"datetime_utc":"2026-06-09T02:00:00Z","aqi":49,"aqi_min":15,"aqi_max":89,"pm25":11.78,"pm10":null,"stations":20},{"datetime_utc":"2026-06-09T03:00:00Z","aqi":36,"aqi_min":13,"aqi_max":72,"pm25":8.66,"pm10":null,"stations":25},{"datetime_utc":"2026-06-09T04:00:00Z","aqi":39,"aqi_min":14,"aqi_max":75,"pm25":9.3,"pm10":null,"stations":14},{"datetime_utc":"2026-06-09T05:00:00Z","aqi":48,"aqi_min":25,"aqi_max":75,"pm25":11.49,"pm10":null,"stations":12},{"datetime_utc":"2026-06-09T06:00:00Z","aqi":52,"aqi_min":24,"aqi_max":78,"pm25":12.53,"pm10":null,"stations":27},{"datetime_utc":"2026-06-09T07:00:00Z","aqi":54,"aqi_min":36,"aqi_max":83,"pm25":13.34,"pm10":null,"stations":15},{"datetime_utc":"2026-06-09T08:00:00Z","aqi":52,"aqi_min":13,"aqi_max":68,"pm25":12.69,"pm10":null,"stations":19},{"datetime_utc":"2026-06-09T09:00:00Z","aqi":61,"aqi_min":49,"aqi_max":72,"pm25":16.98,"pm10":null,"stations":23}],"daily":[{"date":"2026-06-07","aqi_avg":50,"aqi_min":40,"aqi_max":64,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":12.7,"pm10_avg":null,"hours":12,"stations_avg":22},{"date":"2026-06-08","aqi_avg":46,"aqi_min":35,"aqi_max":63,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":11.3,"pm10_avg":null,"hours":24,"stations_avg":19},{"date":"2026-06-09","aqi_avg":48,"aqi_min":35,"aqi_max":61,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":11.9,"pm10_avg":null,"hours":10,"stations_avg":20}]}