Worst air pollution Rock Hill, today and tomorrow
Today (16 July): Air quality in Rock Hill is fair. AQI, PM10, and O3 are fair; PM2.5, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 AM (O3: 32.1/100).
Tomorrow (17 July 2026): Air quality in Rock Hill is fair. PM2.5 increases to fair; PM10 decreases to good; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 2:00 PM (O3: 30.8/100). 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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Rock Hill's air quality reflects the South Carolina Piedmont's position in the Charlotte metropolitan area, with vehicle emissions from I-77 and the surrounding textile and manufacturing legacy contributing local sources. The gentle Piedmont terrain provides reasonable wind dispersal, while summer ozone from the broader Charlotte-Gastonia-Rock Hill metropolitan vehicle emissions and upwind southeastern US industrial sources is the primary warm-season concern across this rapidly growing South Carolina-North Carolina border city.
Today - 16 July | Pollution peaks at 11:00
AQI:
Fair
32.1/100
PM2.5 (fine particles):
Good
16.7/100
PM10 (coarse particles):
Fair
25.4/100
NO2 (nitrogen dioxide):
Good
6.7/100
O3 (ozone):
Fair
32.1/100
SO2 (sulfur dioxide):
Good
1.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.4/100
PM1 (ultrafine particles):
Good
12.8/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 14:00
AQI:
Fair
30.8/100
PM2.5 (fine particles):
Fair
22.5/100
PM10 (coarse particles):
Good
18.7/100
NO2 (nitrogen dioxide):
Good
7.1/100
O3 (ozone):
Fair
30.8/100
SO2 (sulfur dioxide):
Good
1.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.1/100
PM1 (ultrafine particles):
Fair
22.4/100
Pollen forecast in Rock Hill
View pollen forecastFrequently Asked Questions
Is air quality bad in Rock Hill right now?
On 16 July 2026, overall air quality in Rock Hill is fair. AQI is the main air quality indicator at 32.1/100. Pollution peaks around 11:00 AM (O3: 32.1/100).
Will air quality be worse tomorrow in Rock Hill?
On 17 July 2026, air quality conditions in Rock Hill will be similar to today, with AQI forecast at fair at 30.8/100. Pollution peaks around 2:00 PM (O3: 30.8/100).
When is air pollution at its worst in Rock Hill?
Seasonal changes shape air quality across Rock Hill. Typically, the cleanest conditions usually arrive in winter, once the humid summer ozone season has ended, while hot, humid summer days bring the highest ozone risk, amplified by natural emissions from the dense surrounding forests. Prescribed burns are more common in the cooler months and can add brief smoke episodes.
Are air quality levels in Rock Hill 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