{"city":"Petaluma","country":"United States","lat":38.232421875,"lon":-122.63665008544922,"range":"48h","license":"CC BY 4.0","source":"https://cerns.io","hourly":[{"datetime_utc":"2026-06-07T10:00:00Z","aqi":26,"aqi_min":11,"aqi_max":38,"pm25":6.28,"pm10":null,"stations":55},{"datetime_utc":"2026-06-07T11:00:00Z","aqi":25,"aqi_min":4,"aqi_max":37,"pm25":5.99,"pm10":null,"stations":57},{"datetime_utc":"2026-06-07T12:00:00Z","aqi":26,"aqi_min":11,"aqi_max":57,"pm25":6.15,"pm10":null,"stations":55},{"datetime_utc":"2026-06-07T13:00:00Z","aqi":25,"aqi_min":7,"aqi_max":46,"pm25":5.88,"pm10":null,"stations":57},{"datetime_utc":"2026-06-07T14:00:00Z","aqi":26,"aqi_min":11,"aqi_max":57,"pm25":6.19,"pm10":null,"stations":57},{"datetime_utc":"2026-06-07T15:00:00Z","aqi":24,"aqi_min":12,"aqi_max":46,"pm25":5.85,"pm10":null,"stations":56},{"datetime_utc":"2026-06-07T16:00:00Z","aqi":25,"aqi_min":12,"aqi_max":57,"pm25":5.97,"pm10":null,"stations":56},{"datetime_utc":"2026-06-07T17:00:00Z","aqi":24,"aqi_min":11,"aqi_max":40,"pm25":5.77,"pm10":null,"stations":58},{"datetime_utc":"2026-06-07T18:00:00Z","aqi":24,"aqi_min":13,"aqi_max":38,"pm25":5.73,"pm10":null,"stations":57},{"datetime_utc":"2026-06-07T19:00:00Z","aqi":25,"aqi_min":10,"aqi_max":53,"pm25":5.86,"pm10":null,"stations":58},{"datetime_utc":"2026-06-07T20:00:00Z","aqi":25,"aqi_min":11,"aqi_max":50,"pm25":5.98,"pm10":null,"stations":56},{"datetime_utc":"2026-06-07T21:00:00Z","aqi":24,"aqi_min":11,"aqi_max":50,"pm25":5.84,"pm10":null,"stations":56},{"datetime_utc":"2026-06-07T22:00:00Z","aqi":25,"aqi_min":11,"aqi_max":79,"pm25":5.97,"pm10":null,"stations":56},{"datetime_utc":"2026-06-07T23:00:00Z","aqi":24,"aqi_min":14,"aqi_max":62,"pm25":5.84,"pm10":null,"stations":56},{"datetime_utc":"2026-06-08T00:00:00Z","aqi":24,"aqi_min":14,"aqi_max":55,"pm25":5.71,"pm10":null,"stations":54},{"datetime_utc":"2026-06-08T01:00:00Z","aqi":25,"aqi_min":12,"aqi_max":55,"pm25":5.91,"pm10":null,"stations":59},{"datetime_utc":"2026-06-08T02:00:00Z","aqi":25,"aqi_min":11,"aqi_max":42,"pm25":5.86,"pm10":null,"stations":55},{"datetime_utc":"2026-06-08T03:00:00Z","aqi":25,"aqi_min":11,"aqi_max":50,"pm25":6.01,"pm10":null,"stations":56},{"datetime_utc":"2026-06-08T04:00:00Z","aqi":25,"aqi_min":11,"aqi_max":42,"pm25":6.0,"pm10":null,"stations":56},{"datetime_utc":"2026-06-08T05:00:00Z","aqi":25,"aqi_min":14,"aqi_max":46,"pm25":6.08,"pm10":null,"stations":56},{"datetime_utc":"2026-06-08T06:00:00Z","aqi":25,"aqi_min":13,"aqi_max":34,"pm25":5.94,"pm10":null,"stations":55},{"datetime_utc":"2026-06-08T07:00:00Z","aqi":24,"aqi_min":11,"aqi_max":34,"pm25":5.76,"pm10":null,"stations":57},{"datetime_utc":"2026-06-08T08:00:00Z","aqi":25,"aqi_min":11,"aqi_max":57,"pm25":6.04,"pm10":null,"stations":57},{"datetime_utc":"2026-06-08T09:00:00Z","aqi":25,"aqi_min":12,"aqi_max":50,"pm25":5.94,"pm10":null,"stations":55},{"datetime_utc":"2026-06-08T10:00:00Z","aqi":25,"aqi_min":12,"aqi_max":46,"pm25":6.14,"pm10":null,"stations":58},{"datetime_utc":"2026-06-08T11:00:00Z","aqi":24,"aqi_min":11,"aqi_max":38,"pm25":5.77,"pm10":null,"stations":56},{"datetime_utc":"2026-06-08T12:00:00Z","aqi":23,"aqi_min":6,"aqi_max":42,"pm25":5.63,"pm10":null,"stations":58},{"datetime_utc":"2026-06-08T13:00:00Z","aqi":24,"aqi_min":10,"aqi_max":63,"pm25":5.79,"pm10":null,"stations":57},{"datetime_utc":"2026-06-08T14:00:00Z","aqi":24,"aqi_min":11,"aqi_max":46,"pm25":5.7,"pm10":null,"stations":58},{"datetime_utc":"2026-06-08T15:00:00Z","aqi":24,"aqi_min":13,"aqi_max":50,"pm25":5.72,"pm10":null,"stations":56},{"datetime_utc":"2026-06-08T16:00:00Z","aqi":23,"aqi_min":11,"aqi_max":52,"pm25":5.59,"pm10":null,"stations":55},{"datetime_utc":"2026-06-08T17:00:00Z","aqi":23,"aqi_min":11,"aqi_max":48,"pm25":5.45,"pm10":null,"stations":56},{"datetime_utc":"2026-06-08T18:00:00Z","aqi":22,"aqi_min":11,"aqi_max":40,"pm25":5.2,"pm10":null,"stations":56},{"datetime_utc":"2026-06-08T19:00:00Z","aqi":22,"aqi_min":13,"aqi_max":43,"pm25":5.17,"pm10":null,"stations":55},{"datetime_utc":"2026-06-08T20:00:00Z","aqi":21,"aqi_min":12,"aqi_max":55,"pm25":5.09,"pm10":null,"stations":56},{"datetime_utc":"2026-06-08T21:00:00Z","aqi":20,"aqi_min":10,"aqi_max":50,"pm25":4.87,"pm10":null,"stations":56},{"datetime_utc":"2026-06-08T22:00:00Z","aqi":19,"aqi_min":12,"aqi_max":42,"pm25":4.46,"pm10":null,"stations":53},{"datetime_utc":"2026-06-08T23:00:00Z","aqi":19,"aqi_min":10,"aqi_max":61,"pm25":4.55,"pm10":null,"stations":55},{"datetime_utc":"2026-06-09T00:00:00Z","aqi":19,"aqi_min":12,"aqi_max":42,"pm25":4.52,"pm10":null,"stations":54},{"datetime_utc":"2026-06-09T01:00:00Z","aqi":20,"aqi_min":10,"aqi_max":41,"pm25":4.69,"pm10":null,"stations":54},{"datetime_utc":"2026-06-09T02:00:00Z","aqi":19,"aqi_min":11,"aqi_max":46,"pm25":4.64,"pm10":null,"stations":53},{"datetime_utc":"2026-06-09T03:00:00Z","aqi":20,"aqi_min":10,"aqi_max":59,"pm25":4.9,"pm10":null,"stations":56},{"datetime_utc":"2026-06-09T04:00:00Z","aqi":20,"aqi_min":9,"aqi_max":41,"pm25":4.66,"pm10":null,"stations":56},{"datetime_utc":"2026-06-09T05:00:00Z","aqi":22,"aqi_min":3,"aqi_max":53,"pm25":5.16,"pm10":null,"stations":57},{"datetime_utc":"2026-06-09T06:00:00Z","aqi":21,"aqi_min":8,"aqi_max":55,"pm25":5.03,"pm10":null,"stations":55},{"datetime_utc":"2026-06-09T07:00:00Z","aqi":20,"aqi_min":6,"aqi_max":52,"pm25":4.71,"pm10":null,"stations":57}],"daily":[{"date":"2026-06-07","aqi_avg":25,"aqi_min":24,"aqi_max":26,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":6.0,"pm10_avg":null,"hours":14,"stations_avg":56},{"date":"2026-06-08","aqi_avg":23,"aqi_min":19,"aqi_max":25,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":5.6,"pm10_avg":null,"hours":24,"stations_avg":56},{"date":"2026-06-09","aqi_avg":20,"aqi_min":19,"aqi_max":22,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":4.8,"pm10_avg":null,"hours":8,"stations_avg":55}]}