Worst air pollution Rock Hill, today and tomorrow
Today (9 August): Air quality in Rock Hill is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 42.2/100).
Tomorrow (10 August 2026): Air quality in Rock Hill is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 2:00 PM (O3: 31.6/100). 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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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 - 9 August | Pollution peaks at 14:00
AQI:
Medium
42.2/100
PM2.5 (fine particles):
Good
10.4/100
PM10 (coarse particles):
Good
10.9/100
NO2 (nitrogen dioxide):
Good
2.5/100
O3 (ozone):
Medium
42.2/100
SO2 (sulfur dioxide):
Good
1.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.6/100
PM1 (ultrafine particles):
Good
7.7/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 14:00
AQI:
Fair
31.6/100
PM2.5 (fine particles):
Good
13.2/100
PM10 (coarse particles):
Good
12.0/100
NO2 (nitrogen dioxide):
Good
3.7/100
O3 (ozone):
Fair
31.6/100
SO2 (sulfur dioxide):
Good
1.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.1/100
PM1 (ultrafine particles):
Good
8.4/100
Pollen forecast in Rock Hill
View pollen forecastAir quality forecasts for neighbourhoods and landmarks in Rock Hill
Frequently Asked Questions
Is air quality bad in Rock Hill right now?
On 9 August 2026, overall air quality in Rock Hill is medium. AQI is the main air quality indicator at 42.2/100. Pollution peaks around 2:00 PM (O3: 42.2/100).
Will air quality be worse tomorrow in Rock Hill?
On 10 August 2026, air quality conditions in Rock Hill will be worse than today, with AQI forecast at fair at 31.6/100. Pollution peaks around 2:00 PM (O3: 31.6/100).
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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 9 August 2026 at 20:27 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
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