{"city":"Köln","country":"Germany","lat":50.93333053588867,"lon":6.949999809265137,"range":"48h","license":"CC BY 4.0","source":"https://cerns.io","hourly":[{"datetime_utc":"2026-06-07T05:00:00Z","aqi":17,"aqi_min":17,"aqi_max":17,"pm25":4.0,"pm10":6.0,"stations":1},{"datetime_utc":"2026-06-07T06:00:00Z","aqi":4,"aqi_min":4,"aqi_max":4,"pm25":1.0,"pm10":3.0,"stations":1},{"datetime_utc":"2026-06-07T08:00:00Z","aqi":33,"aqi_min":33,"aqi_max":33,"pm25":8.0,"pm10":11.0,"stations":1},{"datetime_utc":"2026-06-07T09:00:00Z","aqi":17,"aqi_min":17,"aqi_max":17,"pm25":4.0,"pm10":6.0,"stations":1},{"datetime_utc":"2026-06-07T10:00:00Z","aqi":17,"aqi_min":17,"aqi_max":17,"pm25":4.0,"pm10":6.0,"stations":1},{"datetime_utc":"2026-06-07T11:00:00Z","aqi":13,"aqi_min":13,"aqi_max":13,"pm25":3.0,"pm10":5.0,"stations":1},{"datetime_utc":"2026-06-07T13:00:00Z","aqi":25,"aqi_min":25,"aqi_max":25,"pm25":6.0,"pm10":8.0,"stations":1},{"datetime_utc":"2026-06-07T14:00:00Z","aqi":6,"aqi_min":6,"aqi_max":6,"pm25":1.3242777585983276,"pm10":1.4323703050613403,"stations":2},{"datetime_utc":"2026-06-07T15:00:00Z","aqi":4,"aqi_min":4,"aqi_max":4,"pm25":1.0,"pm10":1.084984302520752,"stations":2},{"datetime_utc":"2026-06-07T16:00:00Z","aqi":7,"aqi_min":7,"aqi_max":7,"pm25":1.5646439790725708,"pm10":1.753400444984436,"stations":3},{"datetime_utc":"2026-06-07T17:00:00Z","aqi":7,"aqi_min":7,"aqi_max":7,"pm25":1.796760082244873,"pm10":2.390015125274658,"stations":3},{"datetime_utc":"2026-06-07T18:00:00Z","aqi":8,"aqi_min":8,"aqi_max":8,"pm25":1.9144153594970703,"pm10":2.2699778079986572,"stations":3},{"datetime_utc":"2026-06-07T19:00:00Z","aqi":10,"aqi_min":10,"aqi_max":10,"pm25":2.3357772827148438,"pm10":2.422419786453247,"stations":2},{"datetime_utc":"2026-06-07T20:00:00Z","aqi":13,"aqi_min":13,"aqi_max":13,"pm25":3.0115818977355957,"pm10":3.850567102432251,"stations":3},{"datetime_utc":"2026-06-07T21:00:00Z","aqi":19,"aqi_min":19,"aqi_max":19,"pm25":4.531626224517822,"pm10":4.53854513168335,"stations":2},{"datetime_utc":"2026-06-07T22:00:00Z","aqi":23,"aqi_min":23,"aqi_max":23,"pm25":5.435431480407715,"pm10":6.492177486419678,"stations":2},{"datetime_utc":"2026-06-07T23:00:00Z","aqi":25,"aqi_min":25,"aqi_max":25,"pm25":6.105040073394775,"pm10":6.511457443237305,"stations":3},{"datetime_utc":"2026-06-08T00:00:00Z","aqi":18,"aqi_min":18,"aqi_max":18,"pm25":4.347276210784912,"pm10":4.541281700134277,"stations":3},{"datetime_utc":"2026-06-08T01:00:00Z","aqi":24,"aqi_min":24,"aqi_max":24,"pm25":5.675802707672119,"pm10":5.682135581970215,"stations":3},{"datetime_utc":"2026-06-08T02:00:00Z","aqi":18,"aqi_min":18,"aqi_max":18,"pm25":4.270750045776367,"pm10":4.355734348297119,"stations":2},{"datetime_utc":"2026-06-08T03:00:00Z","aqi":17,"aqi_min":17,"aqi_max":17,"pm25":3.982050657272339,"pm10":4.2862162590026855,"stations":3},{"datetime_utc":"2026-06-08T04:00:00Z","aqi":23,"aqi_min":23,"aqi_max":23,"pm25":5.615693092346191,"pm10":5.762095928192139,"stations":2},{"datetime_utc":"2026-06-08T05:00:00Z","aqi":17,"aqi_min":17,"aqi_max":17,"pm25":4.115067481994629,"pm10":4.392205238342285,"stations":2},{"datetime_utc":"2026-06-08T06:00:00Z","aqi":17,"aqi_min":17,"aqi_max":17,"pm25":4.115067481994629,"pm10":4.728128433227539,"stations":2},{"datetime_utc":"2026-06-08T07:00:00Z","aqi":17,"aqi_min":17,"aqi_max":17,"pm25":4.188268661499023,"pm10":4.234019756317139,"stations":2},{"datetime_utc":"2026-06-08T08:00:00Z","aqi":15,"aqi_min":15,"aqi_max":15,"pm25":3.5225319862365723,"pm10":3.6200766563415527,"stations":3},{"datetime_utc":"2026-06-08T09:00:00Z","aqi":10,"aqi_min":10,"aqi_max":10,"pm25":2.4993741512298584,"pm10":2.6693427562713623,"stations":2},{"datetime_utc":"2026-06-08T10:00:00Z","aqi":11,"aqi_min":11,"aqi_max":11,"pm25":2.5844268798828125,"pm10":2.6754748821258545,"stations":3},{"datetime_utc":"2026-06-08T11:00:00Z","aqi":4,"aqi_min":4,"aqi_max":4,"pm25":1.0271997451782227,"pm10":1.5899248123168945,"stations":3},{"datetime_utc":"2026-06-08T12:00:00Z","aqi":7,"aqi_min":7,"aqi_max":7,"pm25":1.6200767755508423,"pm10":1.626409649848938,"stations":3},{"datetime_utc":"2026-06-08T13:00:00Z","aqi":6,"aqi_min":6,"aqi_max":6,"pm25":1.500253677368164,"pm10":1.673392415046692,"stations":3},{"datetime_utc":"2026-06-08T14:00:00Z","aqi":8,"aqi_min":8,"aqi_max":8,"pm25":2.021623134613037,"pm10":2.3165040016174316,"stations":3},{"datetime_utc":"2026-06-08T15:00:00Z","aqi":5,"aqi_min":5,"aqi_max":5,"pm25":1.169968605041504,"pm10":1.169968605041504,"stations":2},{"datetime_utc":"2026-06-08T16:00:00Z","aqi":4,"aqi_min":4,"aqi_max":4,"pm25":1.0663090944290161,"pm10":1.9417788982391357,"stations":3},{"datetime_utc":"2026-06-08T17:00:00Z","aqi":6,"aqi_min":6,"aqi_max":6,"pm25":1.5078343152999878,"pm10":1.680972933769226,"stations":3},{"datetime_utc":"2026-06-08T18:00:00Z","aqi":9,"aqi_min":9,"aqi_max":9,"pm25":2.1830031871795654,"pm10":2.4601407051086426,"stations":2},{"datetime_utc":"2026-06-08T19:00:00Z","aqi":14,"aqi_min":14,"aqi_max":14,"pm25":3.2553930282592773,"pm10":3.261725902557373,"stations":3},{"datetime_utc":"2026-06-08T20:00:00Z","aqi":6,"aqi_min":6,"aqi_max":6,"pm25":1.3646835088729858,"pm10":1.371016502380371,"stations":3},{"datetime_utc":"2026-06-08T21:00:00Z","aqi":6,"aqi_min":6,"aqi_max":6,"pm25":1.3399370908737183,"pm10":1.3399370908737183,"stations":2},{"datetime_utc":"2026-06-08T22:00:00Z","aqi":10,"aqi_min":10,"aqi_max":10,"pm25":2.3974709510803223,"pm10":3.1412665843963623,"stations":2},{"datetime_utc":"2026-06-08T23:00:00Z","aqi":12,"aqi_min":12,"aqi_max":12,"pm25":2.9712979793548584,"pm10":2.9712979793548584,"stations":2},{"datetime_utc":"2026-06-09T00:00:00Z","aqi":8,"aqi_min":8,"aqi_max":8,"pm25":2.0,"pm10":2.0,"stations":1},{"datetime_utc":"2026-06-09T01:00:00Z","aqi":7,"aqi_min":7,"aqi_max":7,"pm25":1.5681378841400146,"pm10":2.3739686012268066,"stations":3},{"datetime_utc":"2026-06-09T02:00:00Z","aqi":8,"aqi_min":8,"aqi_max":8,"pm25":2.0,"pm10":3.0,"stations":1},{"datetime_utc":"2026-06-09T03:00:00Z","aqi":7,"aqi_min":7,"aqi_max":7,"pm25":1.6019980907440186,"pm10":1.6325281858444214,"stations":3},{"datetime_utc":"2026-06-09T04:00:00Z","aqi":5,"aqi_min":5,"aqi_max":5,"pm25":1.169968605041504,"pm10":1.169968605041504,"stations":2}],"daily":[{"date":"2026-06-07","aqi_avg":15,"aqi_min":4,"aqi_max":33,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":3.5,"pm10_avg":4.6,"hours":17,"stations_avg":2},{"date":"2026-06-08","aqi_avg":12,"aqi_min":4,"aqi_max":24,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":2.8,"pm10_avg":3.1,"hours":24,"stations_avg":3},{"date":"2026-06-09","aqi_avg":7,"aqi_min":5,"aqi_max":8,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":1.7,"pm10_avg":2.0,"hours":5,"stations_avg":2}]}