Worst air pollution Greenwood, today and tomorrow
Today (16 July): Air quality in Greenwood is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 37.2/100).
Tomorrow (17 July 2026): Air quality in Greenwood is fair. PM2.5 increases to fair; all other pollutants stay as today. Pollution peaks around 1:00 PM (O3: 39.1/100). 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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Greenwood's air quality reflects its position in the flat Indianapolis southern suburban corridor in Johnson County, with vehicle emissions from I-65 and US-31 and the dense retail and residential development contributing local sources. The flat central Indiana terrain provides reasonable wind dispersal, while summer regional ozone from the broader Indianapolis metropolitan area is the primary warm-season concern throughout the year.
Today - 16 July | Pollution peaks at 14:00
AQI:
Fair
37.2/100
PM2.5 (fine particles):
Good
18.3/100
PM10 (coarse particles):
Good
14.0/100
NO2 (nitrogen dioxide):
Fair
28.1/100
O3 (ozone):
Fair
37.2/100
SO2 (sulfur dioxide):
Good
5.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.1/100
PM1 (ultrafine particles):
Good
12.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 13:00
AQI:
Fair
39.1/100
PM2.5 (fine particles):
Fair
20.3/100
PM10 (coarse particles):
Good
12.3/100
NO2 (nitrogen dioxide):
Fair
32.3/100
O3 (ozone):
Fair
39.1/100
SO2 (sulfur dioxide):
Good
5.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.1/100
PM1 (ultrafine particles):
Good
13.4/100
Pollen forecast in Greenwood
View pollen forecastFrequently Asked Questions
Is air quality bad in Greenwood right now?
On 16 July 2026, overall air quality in Greenwood is fair. AQI is the main air quality indicator at 37.2/100. Pollution peaks around 2:00 PM (O3: 37.2/100).
Will air quality be worse tomorrow in Greenwood?
On 17 July 2026, air quality conditions in Greenwood will be similar to today, with AQI forecast at fair at 39.1/100. Pollution peaks around 1:00 PM (O3: 39.1/100).
When is air pollution at its worst in Greenwood?
Air quality in Greenwood shifts across the year, as spring and autumn tend to bring the cleanest, most stable air; by contrast, prolonged summer heat waves are when air quality most often dips into unhealthy territory. Lake-effect winds can help clear the air on many days near the Great Lakes shoreline.
Are air quality levels in Greenwood 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