{"city":"Iwamizawa","country":"Japan","lat":43.200279235839844,"lon":141.7597198486328,"range":"48h","license":"CC BY 4.0","source":"https://cerns.io","hourly":[{"datetime_utc":"2026-07-20T04:00:00Z","aqi":27,"aqi_min":13,"aqi_max":40,"pm25":6.36,"pm10":null,"stations":2},{"datetime_utc":"2026-07-20T05:00:00Z","aqi":54,"aqi_min":21,"aqi_max":82,"pm25":13.43,"pm10":null,"stations":2},{"datetime_utc":"2026-07-20T06:00:00Z","aqi":54,"aqi_min":15,"aqi_max":96,"pm25":13.61,"pm10":null,"stations":5},{"datetime_utc":"2026-07-20T07:00:00Z","aqi":77,"aqi_min":77,"aqi_max":77,"pm25":24.46,"pm10":null,"stations":1},{"datetime_utc":"2026-07-20T08:00:00Z","aqi":22,"aqi_min":22,"aqi_max":22,"pm25":5.28,"pm10":null,"stations":1},{"datetime_utc":"2026-07-20T09:00:00Z","aqi":25,"aqi_min":25,"aqi_max":25,"pm25":6.0,"pm10":null,"stations":1},{"datetime_utc":"2026-07-20T14:00:00Z","aqi":7,"aqi_min":7,"aqi_max":7,"pm25":1.68,"pm10":null,"stations":1},{"datetime_utc":"2026-07-20T15:00:00Z","aqi":30,"aqi_min":30,"aqi_max":30,"pm25":7.2,"pm10":null,"stations":1},{"datetime_utc":"2026-07-20T16:00:00Z","aqi":35,"aqi_min":27,"aqi_max":42,"pm25":8.28,"pm10":null,"stations":2},{"datetime_utc":"2026-07-20T17:00:00Z","aqi":62,"aqi_min":52,"aqi_max":80,"pm25":17.17,"pm10":null,"stations":3},{"datetime_utc":"2026-07-20T19:00:00Z","aqi":20,"aqi_min":20,"aqi_max":20,"pm25":4.8,"pm10":null,"stations":1},{"datetime_utc":"2026-07-20T20:00:00Z","aqi":26,"aqi_min":26,"aqi_max":26,"pm25":6.24,"pm10":null,"stations":1},{"datetime_utc":"2026-07-20T21:00:00Z","aqi":62,"aqi_min":52,"aqi_max":72,"pm25":17.33,"pm10":null,"stations":2},{"datetime_utc":"2026-07-20T23:00:00Z","aqi":67,"aqi_min":61,"aqi_max":72,"pm25":19.47,"pm10":null,"stations":2},{"datetime_utc":"2026-07-21T00:00:00Z","aqi":50,"aqi_min":50,"aqi_max":50,"pm25":12.0,"pm10":null,"stations":1},{"datetime_utc":"2026-07-21T01:00:00Z","aqi":61,"aqi_min":52,"aqi_max":68,"pm25":16.86,"pm10":null,"stations":3},{"datetime_utc":"2026-07-21T02:00:00Z","aqi":40,"aqi_min":27,"aqi_max":55,"pm25":9.55,"pm10":null,"stations":3},{"datetime_utc":"2026-07-21T03:00:00Z","aqi":40,"aqi_min":15,"aqi_max":58,"pm25":9.51,"pm10":null,"stations":2},{"datetime_utc":"2026-07-21T05:00:00Z","aqi":59,"aqi_min":5,"aqi_max":89,"pm25":15.68,"pm10":null,"stations":2},{"datetime_utc":"2026-07-21T08:00:00Z","aqi":53,"aqi_min":53,"aqi_max":53,"pm25":13.05,"pm10":null,"stations":1},{"datetime_utc":"2026-07-21T09:00:00Z","aqi":68,"aqi_min":68,"aqi_max":68,"pm25":20.18,"pm10":null,"stations":1},{"datetime_utc":"2026-07-21T10:00:00Z","aqi":66,"aqi_min":57,"aqi_max":74,"pm25":18.99,"pm10":null,"stations":2},{"datetime_utc":"2026-07-21T11:00:00Z","aqi":42,"aqi_min":42,"aqi_max":42,"pm25":10.08,"pm10":null,"stations":1},{"datetime_utc":"2026-07-21T12:00:00Z","aqi":91,"aqi_min":91,"aqi_max":91,"pm25":31.12,"pm10":null,"stations":1},{"datetime_utc":"2026-07-21T13:00:00Z","aqi":85,"aqi_min":85,"aqi_max":85,"pm25":28.27,"pm10":null,"stations":1},{"datetime_utc":"2026-07-21T14:00:00Z","aqi":7,"aqi_min":7,"aqi_max":7,"pm25":1.68,"pm10":null,"stations":1},{"datetime_utc":"2026-07-21T18:00:00Z","aqi":31,"aqi_min":31,"aqi_max":31,"pm25":7.44,"pm10":null,"stations":1},{"datetime_utc":"2026-07-21T19:00:00Z","aqi":69,"aqi_min":69,"aqi_max":69,"pm25":20.66,"pm10":null,"stations":1},{"datetime_utc":"2026-07-21T21:00:00Z","aqi":25,"aqi_min":4,"aqi_max":53,"pm25":6.03,"pm10":null,"stations":3},{"datetime_utc":"2026-07-21T22:00:00Z","aqi":20,"aqi_min":17,"aqi_max":23,"pm25":4.88,"pm10":null,"stations":2},{"datetime_utc":"2026-07-21T23:00:00Z","aqi":67,"aqi_min":46,"aqi_max":85,"pm25":19.65,"pm10":null,"stations":2},{"datetime_utc":"2026-07-22T00:00:00Z","aqi":21,"aqi_min":21,"aqi_max":21,"pm25":5.04,"pm10":null,"stations":1},{"datetime_utc":"2026-07-22T01:00:00Z","aqi":30,"aqi_min":30,"aqi_max":30,"pm25":7.2,"pm10":null,"stations":1}],"daily":[{"date":"2026-07-20","aqi_avg":41,"aqi_min":7,"aqi_max":77,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":10.8,"pm10_avg":null,"hours":14,"stations_avg":2},{"date":"2026-07-21","aqi_avg":51,"aqi_min":7,"aqi_max":91,"aqi_color":"#d97706","aqi_label":"Moderate","pm25_avg":14.4,"pm10_avg":null,"hours":17,"stations_avg":2},{"date":"2026-07-22","aqi_avg":26,"aqi_min":21,"aqi_max":30,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":6.1,"pm10_avg":null,"hours":2,"stations_avg":1}]}