{"city":"Lombard","country":"United States","lat":41.88003158569336,"lon":-88.00784301757812,"range":"48h","license":"CC BY 4.0","source":"https://cerns.io","hourly":[{"datetime_utc":"2026-05-28T10:00:00Z","aqi":23,"aqi_min":15,"aqi_max":58,"pm25":5.48,"pm10":null,"stations":282},{"datetime_utc":"2026-05-28T11:00:00Z","aqi":22,"aqi_min":13,"aqi_max":90,"pm25":5.3,"pm10":null,"stations":280},{"datetime_utc":"2026-05-28T12:00:00Z","aqi":22,"aqi_min":13,"aqi_max":63,"pm25":5.25,"pm10":null,"stations":278},{"datetime_utc":"2026-05-28T13:00:00Z","aqi":22,"aqi_min":5,"aqi_max":35,"pm25":5.23,"pm10":null,"stations":281},{"datetime_utc":"2026-05-28T14:00:00Z","aqi":23,"aqi_min":13,"aqi_max":43,"pm25":5.35,"pm10":null,"stations":278},{"datetime_utc":"2026-05-28T15:00:00Z","aqi":23,"aqi_min":13,"aqi_max":46,"pm25":5.52,"pm10":null,"stations":279},{"datetime_utc":"2026-05-28T16:00:00Z","aqi":23,"aqi_min":5,"aqi_max":55,"pm25":5.6,"pm10":null,"stations":280},{"datetime_utc":"2026-05-28T17:00:00Z","aqi":24,"aqi_min":13,"aqi_max":55,"pm25":5.81,"pm10":null,"stations":277},{"datetime_utc":"2026-05-28T18:00:00Z","aqi":24,"aqi_min":14,"aqi_max":58,"pm25":5.85,"pm10":null,"stations":276},{"datetime_utc":"2026-05-28T19:00:00Z","aqi":24,"aqi_min":14,"aqi_max":56,"pm25":5.84,"pm10":null,"stations":280},{"datetime_utc":"2026-05-28T20:00:00Z","aqi":24,"aqi_min":14,"aqi_max":58,"pm25":5.79,"pm10":null,"stations":280},{"datetime_utc":"2026-05-28T21:00:00Z","aqi":41,"aqi_min":13,"aqi_max":60,"pm25":9.82,"pm10":null,"stations":9},{"datetime_utc":"2026-05-28T22:00:00Z","aqi":27,"aqi_min":11,"aqi_max":49,"pm25":6.36,"pm10":null,"stations":10},{"datetime_utc":"2026-05-28T23:00:00Z","aqi":23,"aqi_min":10,"aqi_max":47,"pm25":5.36,"pm10":null,"stations":276},{"datetime_utc":"2026-05-29T00:00:00Z","aqi":23,"aqi_min":14,"aqi_max":86,"pm25":5.43,"pm10":null,"stations":272},{"datetime_utc":"2026-05-29T01:00:00Z","aqi":22,"aqi_min":13,"aqi_max":83,"pm25":5.23,"pm10":null,"stations":272},{"datetime_utc":"2026-05-29T02:00:00Z","aqi":22,"aqi_min":13,"aqi_max":96,"pm25":5.17,"pm10":null,"stations":279},{"datetime_utc":"2026-05-29T03:00:00Z","aqi":21,"aqi_min":12,"aqi_max":93,"pm25":4.98,"pm10":null,"stations":278},{"datetime_utc":"2026-05-29T04:00:00Z","aqi":20,"aqi_min":0,"aqi_max":80,"pm25":4.8,"pm10":1.1,"stations":280},{"datetime_utc":"2026-05-29T05:00:00Z","aqi":20,"aqi_min":10,"aqi_max":68,"pm25":4.76,"pm10":null,"stations":280},{"datetime_utc":"2026-05-29T06:00:00Z","aqi":19,"aqi_min":9,"aqi_max":58,"pm25":4.58,"pm10":null,"stations":282},{"datetime_utc":"2026-05-29T07:00:00Z","aqi":19,"aqi_min":11,"aqi_max":48,"pm25":4.48,"pm10":null,"stations":280},{"datetime_utc":"2026-05-29T08:00:00Z","aqi":18,"aqi_min":10,"aqi_max":63,"pm25":4.44,"pm10":null,"stations":279},{"datetime_utc":"2026-05-29T09:00:00Z","aqi":19,"aqi_min":3,"aqi_max":63,"pm25":4.55,"pm10":null,"stations":282},{"datetime_utc":"2026-05-29T10:00:00Z","aqi":20,"aqi_min":10,"aqi_max":68,"pm25":4.74,"pm10":null,"stations":281},{"datetime_utc":"2026-05-29T11:00:00Z","aqi":23,"aqi_min":12,"aqi_max":87,"pm25":5.63,"pm10":null,"stations":277},{"datetime_utc":"2026-05-29T12:00:00Z","aqi":28,"aqi_min":13,"aqi_max":83,"pm25":6.8,"pm10":null,"stations":281},{"datetime_utc":"2026-05-29T13:00:00Z","aqi":30,"aqi_min":9,"aqi_max":85,"pm25":7.06,"pm10":null,"stations":280},{"datetime_utc":"2026-05-29T14:00:00Z","aqi":30,"aqi_min":13,"aqi_max":71,"pm25":7.07,"pm10":null,"stations":279},{"datetime_utc":"2026-05-29T15:00:00Z","aqi":29,"aqi_min":13,"aqi_max":60,"pm25":7.03,"pm10":null,"stations":281},{"datetime_utc":"2026-05-29T16:00:00Z","aqi":30,"aqi_min":14,"aqi_max":59,"pm25":7.09,"pm10":null,"stations":282},{"datetime_utc":"2026-05-29T17:00:00Z","aqi":30,"aqi_min":8,"aqi_max":50,"pm25":7.22,"pm10":null,"stations":281},{"datetime_utc":"2026-05-29T18:00:00Z","aqi":31,"aqi_min":17,"aqi_max":50,"pm25":7.52,"pm10":null,"stations":285},{"datetime_utc":"2026-05-29T19:00:00Z","aqi":32,"aqi_min":9,"aqi_max":55,"pm25":7.58,"pm10":null,"stations":281},{"datetime_utc":"2026-05-29T20:00:00Z","aqi":31,"aqi_min":5,"aqi_max":55,"pm25":7.43,"pm10":null,"stations":281},{"datetime_utc":"2026-05-29T21:00:00Z","aqi":31,"aqi_min":18,"aqi_max":50,"pm25":7.37,"pm10":null,"stations":280},{"datetime_utc":"2026-05-29T22:00:00Z","aqi":30,"aqi_min":5,"aqi_max":52,"pm25":7.34,"pm10":1.25,"stations":280},{"datetime_utc":"2026-05-29T23:00:00Z","aqi":32,"aqi_min":7,"aqi_max":59,"pm25":7.61,"pm10":1.71,"stations":280},{"datetime_utc":"2026-05-30T00:00:00Z","aqi":33,"aqi_min":4,"aqi_max":64,"pm25":7.92,"pm10":1.0,"stations":283},{"datetime_utc":"2026-05-30T01:00:00Z","aqi":36,"aqi_min":18,"aqi_max":66,"pm25":8.64,"pm10":null,"stations":283},{"datetime_utc":"2026-05-30T02:00:00Z","aqi":41,"aqi_min":2,"aqi_max":64,"pm25":9.81,"pm10":1.0,"stations":281},{"datetime_utc":"2026-05-30T03:00:00Z","aqi":48,"aqi_min":17,"aqi_max":63,"pm25":11.38,"pm10":6.87,"stations":278},{"datetime_utc":"2026-05-30T04:00:00Z","aqi":54,"aqi_min":9,"aqi_max":72,"pm25":13.32,"pm10":12.05,"stations":282},{"datetime_utc":"2026-05-30T05:00:00Z","aqi":58,"aqi_min":16,"aqi_max":79,"pm25":15.28,"pm10":16.02,"stations":281},{"datetime_utc":"2026-05-30T06:00:00Z","aqi":62,"aqi_min":16,"aqi_max":87,"pm25":17.24,"pm10":18.58,"stations":281},{"datetime_utc":"2026-05-30T07:00:00Z","aqi":56,"aqi_min":50,"aqi_max":64,"pm25":14.58,"pm10":18.51,"stations":5},{"datetime_utc":"2026-05-30T08:00:00Z","aqi":67,"aqi_min":67,"aqi_max":67,"pm25":19.69,"pm10":19.71,"stations":1}],"daily":[{"date":"2026-05-28","aqi_avg":25,"aqi_min":22,"aqi_max":41,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":5.9,"pm10_avg":null,"hours":14,"stations_avg":240},{"date":"2026-05-29","aqi_avg":25,"aqi_min":18,"aqi_max":32,"aqi_color":"#059669","aqi_label":"Good","pm25_avg":6.1,"pm10_avg":1.4,"hours":24,"stations_avg":280},{"date":"2026-05-30","aqi_avg":51,"aqi_min":33,"aqi_max":67,"aqi_color":"#d97706","aqi_label":"Moderate","pm25_avg":13.1,"pm10_avg":11.7,"hours":9,"stations_avg":219}]}