{"city":"Biel/Bienne","country":"Switzerland","lat":47.13713073730469,"lon":7.246079921722412,"range":"48h","license":"CC BY 4.0","source":"https://cerns.io","hourly":[{"datetime_utc":"2026-06-07T17:00:00Z","aqi":17,"aqi_min":11,"aqi_max":22,"pm25":4.0,"pm10":2.74,"stations":2},{"datetime_utc":"2026-06-07T18:00:00Z","aqi":6,"aqi_min":1,"aqi_max":11,"pm25":1.44,"pm10":2.26,"stations":2},{"datetime_utc":"2026-06-07T19:00:00Z","aqi":68,"aqi_min":68,"aqi_max":68,"pm25":20.12,"pm10":21.0,"stations":1},{"datetime_utc":"2026-06-07T20:00:00Z","aqi":5,"aqi_min":5,"aqi_max":5,"pm25":1.27,"pm10":1.27,"stations":1},{"datetime_utc":"2026-06-07T21:00:00Z","aqi":9,"aqi_min":2,"aqi_max":20,"pm25":2.11,"pm10":1.0,"stations":3},{"datetime_utc":"2026-06-07T22:00:00Z","aqi":11,"aqi_min":4,"aqi_max":23,"pm25":2.57,"pm10":1.09,"stations":3},{"datetime_utc":"2026-06-07T23:00:00Z","aqi":18,"aqi_min":5,"aqi_max":27,"pm25":4.19,"pm10":1.3,"stations":3},{"datetime_utc":"2026-06-08T00:00:00Z","aqi":3,"aqi_min":2,"aqi_max":3,"pm25":0.68,"pm10":1.3,"stations":2},{"datetime_utc":"2026-06-08T02:00:00Z","aqi":5,"aqi_min":4,"aqi_max":5,"pm25":1.1,"pm10":1.0,"stations":2},{"datetime_utc":"2026-06-08T03:00:00Z","aqi":4,"aqi_min":3,"aqi_max":4,"pm25":0.91,"pm10":1.0,"stations":2},{"datetime_utc":"2026-06-08T04:00:00Z","aqi":4,"aqi_min":4,"aqi_max":4,"pm25":1.05,"pm10":1.33,"stations":1},{"datetime_utc":"2026-06-08T05:00:00Z","aqi":7,"aqi_min":5,"aqi_max":8,"pm25":1.56,"pm10":1.69,"stations":2},{"datetime_utc":"2026-06-08T06:00:00Z","aqi":7,"aqi_min":7,"aqi_max":8,"pm25":1.73,"pm10":2.17,"stations":2},{"datetime_utc":"2026-06-08T07:00:00Z","aqi":18,"aqi_min":10,"aqi_max":35,"pm25":4.34,"pm10":2.46,"stations":3},{"datetime_utc":"2026-06-08T08:00:00Z","aqi":30,"aqi_min":2,"aqi_max":63,"pm25":7.14,"pm10":2.37,"stations":3},{"datetime_utc":"2026-06-08T09:00:00Z","aqi":12,"aqi_min":5,"aqi_max":23,"pm25":2.82,"pm10":1.47,"stations":3},{"datetime_utc":"2026-06-08T10:00:00Z","aqi":22,"aqi_min":2,"aqi_max":43,"pm25":5.19,"pm10":1.23,"stations":4},{"datetime_utc":"2026-06-08T11:00:00Z","aqi":6,"aqi_min":2,"aqi_max":10,"pm25":1.5,"pm10":1.93,"stations":2},{"datetime_utc":"2026-06-08T12:00:00Z","aqi":5,"aqi_min":4,"aqi_max":6,"pm25":1.19,"pm10":1.28,"stations":2},{"datetime_utc":"2026-06-08T13:00:00Z","aqi":8,"aqi_min":3,"aqi_max":14,"pm25":2.05,"pm10":2.79,"stations":3},{"datetime_utc":"2026-06-08T14:00:00Z","aqi":6,"aqi_min":5,"aqi_max":8,"pm25":1.53,"pm10":1.94,"stations":2},{"datetime_utc":"2026-06-08T15:00:00Z","aqi":15,"aqi_min":5,"aqi_max":31,"pm25":3.73,"pm10":1.96,"stations":3},{"datetime_utc":"2026-06-08T16:00:00Z","aqi":13,"aqi_min":3,"aqi_max":28,"pm25":3.15,"pm10":2.19,"stations":3},{"datetime_utc":"2026-06-08T17:00:00Z","aqi":6,"aqi_min":4,"aqi_max":8,"pm25":1.41,"pm10":1.66,"stations":2},{"datetime_utc":"2026-06-08T18:00:00Z","aqi":6,"aqi_min":5,"aqi_max":7,"pm25":1.4,"pm10":2.1,"stations":2},{"datetime_utc":"2026-06-08T19:00:00Z","aqi":8,"aqi_min":8,"aqi_max":9,"pm25":2.05,"pm10":2.33,"stations":2},{"datetime_utc":"2026-06-08T20:00:00Z","aqi":11,"aqi_min":11,"aqi_max":11,"pm25":2.64,"pm10":3.55,"stations":2},{"datetime_utc":"2026-06-08T21:00:00Z","aqi":23,"aqi_min":12,"aqi_max":40,"pm25":5.47,"pm10":3.66,"stations":3},{"datetime_utc":"2026-06-08T22:00:00Z","aqi":42,"aqi_min":11,"aqi_max":93,"pm25":10.22,"pm10":4.09,"stations":4},{"datetime_utc":"2026-06-08T23:00:00Z","aqi":14,"aqi_min":11,"aqi_max":16,"pm25":3.3,"pm10":3.38,"stations":2},{"datetime_utc":"2026-06-09T00:00:00Z","aqi":16,"aqi_min":10,"aqi_max":22,"pm25":3.84,"pm10":3.75,"stations":3},{"datetime_utc":"2026-06-09T01:00:00Z","aqi":33,"aqi_min":5,"aqi_max":66,"pm25":7.97,"pm10":3.62,"stations":3},{"datetime_utc":"2026-06-09T02:00:00Z","aqi":17,"aqi_min":17,"aqi_max":17,"pm25":4.12,"pm10":4.33,"stations":1},{"datetime_utc":"2026-06-09T03:00:00Z","aqi":32,"aqi_min":5,"aqi_max":56,"pm25":7.73,"pm10":7.81,"stations":2},{"datetime_utc":"2026-06-09T04:00:00Z","aqi":15,"aqi_min":15,"aqi_max":16,"pm25":3.65,"pm10":3.66,"stations":2},{"datetime_utc":"2026-06-09T05:00:00Z","aqi":32,"aqi_min":15,"aqi_max":49,"pm25":7.64,"pm10":13.17,"stations":2},{"datetime_utc":"2026-06-09T06:00:00Z","aqi":56,"aqi_min":15,"aqi_max":97,"pm25":14.52,"pm10":3.58,"stations":3},{"datetime_utc":"2026-06-09T08:00:00Z","aqi":66,"aqi_min":66,"aqi_max":66,"pm25":19.23,"pm10":null,"stations":1},{"datetime_utc":"2026-06-09T09:00:00Z","aqi":19,"aqi_min":19,"aqi_max":19,"pm25":4.56,"pm10":null,"stations":1},{"datetime_utc":"2026-06-09T10:00:00Z","aqi":25,"aqi_min":23,"aqi_max":28,"pm25":6.12,"pm10":null,"stations":2},{"datetime_utc":"2026-06-09T11:00:00Z","aqi":29,"aqi_min":29,"aqi_max":29,"pm25":6.96,"pm10":null,"stations":1},{"datetime_utc":"2026-06-09T12:00:00Z","aqi":26,"aqi_min":26,"aqi_max":26,"pm25":6.24,"pm10":null,"stations":1},{"datetime_utc":"2026-06-09T14:00:00Z","aqi":26,"aqi_min":26,"aqi_max":26,"pm25":6.24,"pm10":null,"stations":1}],"daily":[{"date":"2026-06-07","aqi_avg":19,"aqi_min":5,"aqi_max":68,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":5.1,"pm10_avg":4.4,"hours":7,"stations_avg":2},{"date":"2026-06-08","aqi_avg":12,"aqi_min":3,"aqi_max":42,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":2.9,"pm10_avg":2.1,"hours":23,"stations_avg":2},{"date":"2026-06-09","aqi_avg":30,"aqi_min":15,"aqi_max":66,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":7.6,"pm10_avg":5.7,"hours":13,"stations_avg":2}]}