Worst air pollution York, today and tomorrow
Today (16 July): Air quality in York is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (O3: 34.1/100).
Tomorrow (17 July 2026): Air quality in York is fair. NO2 decreases to good; all other pollutants stay as today. Pollution peaks around 8:00 AM (O3: 38.0/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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York's air quality in Pennsylvania reflects the Codorus Creek valley's position in the mid-Atlantic corridor, with vehicle emissions from I-83 and US-30 and the surrounding manufacturing and logistics industry contributing local sources. The gentle Pennsylvania Piedmont terrain provides reasonable wind dispersal, while the broader mid-Atlantic regional airshed contributes upwind industrial and urban sources from the Baltimore-Washington corridor to the south and the Philadelphia corridor to the east during prevailing summer wind patterns.
Today - 16 July | Pollution peaks at 08:00
AQI:
Fair
34.1/100
PM2.5 (fine particles):
Good
12.6/100
PM10 (coarse particles):
Good
11.5/100
NO2 (nitrogen dioxide):
Fair
21.1/100
O3 (ozone):
Fair
34.1/100
SO2 (sulfur dioxide):
Good
3.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.9/100
PM1 (ultrafine particles):
Good
8.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 08:00
AQI:
Fair
38.0/100
PM2.5 (fine particles):
Good
13.7/100
PM10 (coarse particles):
Good
7.9/100
NO2 (nitrogen dioxide):
Good
15.8/100
O3 (ozone):
Fair
38.0/100
SO2 (sulfur dioxide):
Good
1.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.6/100
PM1 (ultrafine particles):
Good
8.7/100
Pollen forecast in York
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in York
Frequently Asked Questions
Is air quality bad in York right now?
On 16 July 2026, overall air quality in York is fair. AQI is the main air quality indicator at 34.1/100. Pollution peaks around 8:00 AM (O3: 34.1/100).
Will air quality be worse tomorrow in York?
On 17 July 2026, air quality conditions in York will be similar to today, with AQI forecast at fair at 38.0/100. Pollution peaks around 8:00 AM (O3: 38.0/100).
When is air pollution at its worst in York?
Seasonal changes shape air quality across York. Typically, once summer ozone season ends, winter typically offers the cleanest air, while hot, humid summer conditions and regional haze drive ozone spikes, especially during heat waves. Dense urban traffic corridors add a persistent background level of pollution that varies less by season than ozone does.
Are air quality levels in York based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app