Worst air pollution Islip, today and tomorrow
Today (16 July): Air quality in Islip is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (O3: 37.6/100).
Tomorrow (17 July 2026): Air quality in Islip is medium. AQI improves to medium; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 12:00 PM (O3: 40.4/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Islip's air quality in Long Island reflects its suburban and coastal position on Great South Bay, with consistent Atlantic Ocean sea breezes from the barrier island beaches providing reliable maritime ventilation. Vehicle emissions from the Long Island Expressway and Sunrise Highway are the primary local sources, while prevailing westerlies carry the broader New York City metropolitan area pollution plume across Long Island, elevating background ozone and PM2.5 above rural eastern Long Island values.
Today - 16 July | Pollution peaks at 12:00
AQI:
Fair
37.6/100
PM2.5 (fine particles):
Good
10.3/100
PM10 (coarse particles):
Good
10.4/100
NO2 (nitrogen dioxide):
Good
4.3/100
O3 (ozone):
Fair
37.6/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.1/100
PM1 (ultrafine particles):
Good
5.6/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 12:00
AQI:
Medium
40.4/100
PM2.5 (fine particles):
Good
7.0/100
PM10 (coarse particles):
Good
3.4/100
NO2 (nitrogen dioxide):
Good
7.5/100
O3 (ozone):
Medium
40.4/100
SO2 (sulfur dioxide):
Good
0.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.9/100
PM1 (ultrafine particles):
Good
4.4/100
Pollen forecast in Islip
View pollen forecastFrequently Asked Questions
Is air quality bad in Islip right now?
On 16 July 2026, overall air quality in Islip is fair. AQI is the main air quality indicator at 37.6/100. Pollution peaks around 12:00 PM (O3: 37.6/100).
Will air quality be worse tomorrow in Islip?
On 17 July 2026, air quality conditions in Islip will be better than today, with AQI forecast at medium at 40.4/100. Pollution peaks around 12:00 PM (O3: 40.4/100).
When is air pollution at its worst in Islip?
Conditions in Islip vary noticeably across the seasons, as frequent frontal systems in spring and fall usually keep the air cleanest then; by contrast, summer heat waves, often worsened by haze drifting in from other regions, bring the year's worst air. Winter cold fronts tend to clear the air quickly, so extended pollution episodes are relatively uncommon.
Are air quality levels in Islip 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