{"city":"Chang-hua","country":"Taiwan","lat":24.073270797729492,"lon":120.56275939941406,"range":"48h","license":"CC BY 4.0","source":"https://cerns.io","hourly":[{"datetime_utc":"2026-06-07T05:00:00Z","aqi":45,"aqi_min":6,"aqi_max":104,"pm25":10.68,"pm10":null,"stations":19},{"datetime_utc":"2026-06-07T06:00:00Z","aqi":48,"aqi_min":2,"aqi_max":119,"pm25":11.53,"pm10":null,"stations":19},{"datetime_utc":"2026-06-07T07:00:00Z","aqi":53,"aqi_min":17,"aqi_max":77,"pm25":12.86,"pm10":null,"stations":19},{"datetime_utc":"2026-06-07T08:00:00Z","aqi":42,"aqi_min":8,"aqi_max":89,"pm25":9.98,"pm10":null,"stations":31},{"datetime_utc":"2026-06-07T09:00:00Z","aqi":55,"aqi_min":9,"aqi_max":107,"pm25":13.9,"pm10":null,"stations":17},{"datetime_utc":"2026-06-07T10:00:00Z","aqi":62,"aqi_min":10,"aqi_max":139,"pm25":17.38,"pm10":null,"stations":18},{"datetime_utc":"2026-06-07T11:00:00Z","aqi":43,"aqi_min":2,"aqi_max":92,"pm25":10.31,"pm10":null,"stations":21},{"datetime_utc":"2026-06-07T12:00:00Z","aqi":48,"aqi_min":2,"aqi_max":102,"pm25":11.43,"pm10":null,"stations":22},{"datetime_utc":"2026-06-07T13:00:00Z","aqi":54,"aqi_min":11,"aqi_max":99,"pm25":13.56,"pm10":null,"stations":12},{"datetime_utc":"2026-06-07T14:00:00Z","aqi":36,"aqi_min":10,"aqi_max":83,"pm25":8.59,"pm10":null,"stations":31},{"datetime_utc":"2026-06-07T15:00:00Z","aqi":41,"aqi_min":10,"aqi_max":61,"pm25":9.92,"pm10":null,"stations":28},{"datetime_utc":"2026-06-07T16:00:00Z","aqi":42,"aqi_min":5,"aqi_max":109,"pm25":10.01,"pm10":null,"stations":27},{"datetime_utc":"2026-06-07T17:00:00Z","aqi":45,"aqi_min":9,"aqi_max":107,"pm25":10.71,"pm10":null,"stations":21},{"datetime_utc":"2026-06-07T18:00:00Z","aqi":48,"aqi_min":18,"aqi_max":112,"pm25":11.61,"pm10":null,"stations":22},{"datetime_utc":"2026-06-07T19:00:00Z","aqi":48,"aqi_min":6,"aqi_max":117,"pm25":11.45,"pm10":null,"stations":25},{"datetime_utc":"2026-06-07T20:00:00Z","aqi":43,"aqi_min":5,"aqi_max":80,"pm25":10.25,"pm10":null,"stations":24},{"datetime_utc":"2026-06-07T21:00:00Z","aqi":37,"aqi_min":5,"aqi_max":114,"pm25":8.91,"pm10":null,"stations":22},{"datetime_utc":"2026-06-07T22:00:00Z","aqi":38,"aqi_min":5,"aqi_max":72,"pm25":9.16,"pm10":null,"stations":15},{"datetime_utc":"2026-06-07T23:00:00Z","aqi":41,"aqi_min":3,"aqi_max":90,"pm25":9.8,"pm10":null,"stations":27},{"datetime_utc":"2026-06-08T00:00:00Z","aqi":52,"aqi_min":5,"aqi_max":119,"pm25":12.64,"pm10":null,"stations":28},{"datetime_utc":"2026-06-08T01:00:00Z","aqi":46,"aqi_min":17,"aqi_max":109,"pm25":11.01,"pm10":null,"stations":22},{"datetime_utc":"2026-06-08T02:00:00Z","aqi":56,"aqi_min":13,"aqi_max":114,"pm25":14.59,"pm10":null,"stations":25},{"datetime_utc":"2026-06-08T03:00:00Z","aqi":41,"aqi_min":2,"aqi_max":87,"pm25":9.88,"pm10":null,"stations":24},{"datetime_utc":"2026-06-08T04:00:00Z","aqi":48,"aqi_min":5,"aqi_max":155,"pm25":11.42,"pm10":null,"stations":23},{"datetime_utc":"2026-06-08T05:00:00Z","aqi":47,"aqi_min":19,"aqi_max":88,"pm25":11.32,"pm10":null,"stations":25},{"datetime_utc":"2026-06-08T06:00:00Z","aqi":40,"aqi_min":21,"aqi_max":64,"pm25":9.47,"pm10":null,"stations":14},{"datetime_utc":"2026-06-08T07:00:00Z","aqi":36,"aqi_min":22,"aqi_max":62,"pm25":8.65,"pm10":null,"stations":14},{"datetime_utc":"2026-06-08T08:00:00Z","aqi":38,"aqi_min":17,"aqi_max":61,"pm25":8.98,"pm10":null,"stations":32},{"datetime_utc":"2026-06-08T09:00:00Z","aqi":38,"aqi_min":4,"aqi_max":63,"pm25":9.24,"pm10":null,"stations":33},{"datetime_utc":"2026-06-08T10:00:00Z","aqi":48,"aqi_min":19,"aqi_max":93,"pm25":11.56,"pm10":null,"stations":18},{"datetime_utc":"2026-06-08T11:00:00Z","aqi":51,"aqi_min":14,"aqi_max":160,"pm25":12.07,"pm10":null,"stations":22},{"datetime_utc":"2026-06-08T12:00:00Z","aqi":47,"aqi_min":3,"aqi_max":89,"pm25":11.18,"pm10":null,"stations":28},{"datetime_utc":"2026-06-08T13:00:00Z","aqi":51,"aqi_min":17,"aqi_max":90,"pm25":12.31,"pm10":null,"stations":14},{"datetime_utc":"2026-06-08T14:00:00Z","aqi":52,"aqi_min":9,"aqi_max":91,"pm25":12.39,"pm10":null,"stations":20},{"datetime_utc":"2026-06-08T15:00:00Z","aqi":46,"aqi_min":20,"aqi_max":74,"pm25":11.12,"pm10":null,"stations":17},{"datetime_utc":"2026-06-08T16:00:00Z","aqi":71,"aqi_min":11,"aqi_max":358,"pm25":21.47,"pm10":null,"stations":25},{"datetime_utc":"2026-06-08T17:00:00Z","aqi":30,"aqi_min":11,"aqi_max":52,"pm25":7.06,"pm10":null,"stations":21},{"datetime_utc":"2026-06-08T18:00:00Z","aqi":33,"aqi_min":13,"aqi_max":69,"pm25":7.87,"pm10":null,"stations":33},{"datetime_utc":"2026-06-08T19:00:00Z","aqi":55,"aqi_min":7,"aqi_max":156,"pm25":13.76,"pm10":null,"stations":29},{"datetime_utc":"2026-06-08T20:00:00Z","aqi":37,"aqi_min":17,"aqi_max":60,"pm25":8.78,"pm10":null,"stations":26},{"datetime_utc":"2026-06-08T21:00:00Z","aqi":32,"aqi_min":17,"aqi_max":54,"pm25":7.8,"pm10":null,"stations":13},{"datetime_utc":"2026-06-08T22:00:00Z","aqi":52,"aqi_min":14,"aqi_max":160,"pm25":12.59,"pm10":null,"stations":25},{"datetime_utc":"2026-06-08T23:00:00Z","aqi":35,"aqi_min":11,"aqi_max":70,"pm25":8.34,"pm10":null,"stations":19},{"datetime_utc":"2026-06-09T00:00:00Z","aqi":46,"aqi_min":5,"aqi_max":152,"pm25":10.97,"pm10":null,"stations":28},{"datetime_utc":"2026-06-09T01:00:00Z","aqi":30,"aqi_min":18,"aqi_max":55,"pm25":7.18,"pm10":null,"stations":22},{"datetime_utc":"2026-06-09T02:00:00Z","aqi":37,"aqi_min":2,"aqi_max":155,"pm25":8.89,"pm10":null,"stations":32},{"datetime_utc":"2026-06-09T03:00:00Z","aqi":24,"aqi_min":13,"aqi_max":46,"pm25":5.74,"pm10":null,"stations":22},{"datetime_utc":"2026-06-09T04:00:00Z","aqi":24,"aqi_min":9,"aqi_max":34,"pm25":5.72,"pm10":null,"stations":6}],"daily":[{"date":"2026-06-07","aqi_avg":46,"aqi_min":36,"aqi_max":62,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":11.2,"pm10_avg":null,"hours":19,"stations_avg":22},{"date":"2026-06-08","aqi_avg":45,"aqi_min":30,"aqi_max":71,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":11.1,"pm10_avg":null,"hours":24,"stations_avg":23},{"date":"2026-06-09","aqi_avg":32,"aqi_min":24,"aqi_max":46,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":7.7,"pm10_avg":null,"hours":5,"stations_avg":22}]}