What is the air quality trend in York?

Over the past 15 days, York had an average AQI of 41 based on station measurements. The worst day was 2026-08-04 with AQI 78.

How is York air quality measured?

Air quality in York is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for York, United States

Name: York Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near York, United States.

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

305h

PM2.5 Station

305h · 5 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-08-08	46	46–46	11.1 µg/m³	1h	5
2026-08-07	27	17–38	6.5 µg/m³	21h	6
2026-08-06	51	18–99	14.1 µg/m³	19h	3
2026-08-05	48	20–95	13.0 µg/m³	23h	3
2026-08-04	78	10–500	46.7 µg/m³	24h	4
2026-08-03	47	18–211	17.3 µg/m³	22h	4
2026-08-02	41	20–151	10.8 µg/m³	24h	4
2026-08-01	36	22–47	8.7 µg/m³	23h	5
2026-07-31	33	15–58	8.1 µg/m³	20h	3
2026-07-30	28	16–46	6.6 µg/m³	21h	4
2026-07-29	32	14–55	7.7 µg/m³	21h	5
2026-07-28	43	11–102	11.3 µg/m³	24h	4
2026-07-27	45	23–66	11.2 µg/m³	22h	4
2026-07-26	34	14–56	8.1 µg/m³	22h	4
2026-07-25	28	15–40	6.7 µg/m³	18h	4

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