Worst air pollution Block Island, today and tomorrow
Today (16 July): Air quality in Block Island 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: 36.5/100).
Tomorrow (17 July 2026): Air quality in Block Island is fair. All pollutants stay as today. Pollution peaks around 1:00 PM (O3: 38.5/100). 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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In Block Island, open-ocean maritime air is the main influence on air quality, and isolation from the mainland keeps air quality excellent nearly year-round. Most days bring generally favorable conditions here, with occasional exceptions tied to shifting weather patterns. Checking current readings is still the best way to plan outdoor activity around Block Island.
Today - 16 July | Pollution peaks at 12:00
AQI:
Fair
36.5/100
PM2.5 (fine particles):
Good
11.3/100
PM10 (coarse particles):
Good
11.7/100
NO2 (nitrogen dioxide):
Good
14.9/100
O3 (ozone):
Fair
36.5/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.5/100
PM1 (ultrafine particles):
Good
7.3/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 13:00
AQI:
Fair
38.5/100
PM2.5 (fine particles):
Good
8.7/100
PM10 (coarse particles):
Good
4.1/100
NO2 (nitrogen dioxide):
Good
16.1/100
O3 (ozone):
Fair
38.5/100
SO2 (sulfur dioxide):
Good
1.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.9/100
PM1 (ultrafine particles):
Good
5.8/100
Pollen forecast in Block Island
View pollen forecastFrequently Asked Questions
Is air quality bad in Block Island right now?
On 16 July 2026, overall air quality in Block Island is fair. AQI is the main air quality indicator at 36.5/100. Pollution peaks around 12:00 PM (O3: 36.5/100).
Will air quality be worse tomorrow in Block Island?
On 17 July 2026, air quality conditions in Block Island will be similar to today, with AQI forecast at fair at 38.5/100. Pollution peaks around 1:00 PM (O3: 38.5/100).
When is air pollution at its worst in Block Island?
Block Island's air quality has a clear seasonal rhythm. Typically, the cleanest conditions typically arrive with the more unsettled weather of spring and autumn, while summer heat and regional haze drifting up from the Midwest and South drive ozone spikes. Winter cold fronts tend to clear the air quickly, so extended pollution episodes are relatively uncommon.
Are air quality levels in Block Island 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.
Want to see air quality forecasts for other cities in United States?
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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