Worst air pollution Dalton, Ohio, today and tomorrow

Today (20 September): Air quality in Dalton, Ohio is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 1:00 PM (O3: 17.9/100).
Tomorrow (21 September 2026): Air quality in Dalton, Ohio is fair. AQI worsens to fair; NO2 increases to fair; all other pollutants stay as today. Pollution peaks around 4:00 PM (NO2: 21.5/100). Airmine updates local air quality forecasts four times daily.

Get the full experience in the Airmine app.

Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.

Dalton experiences air quality conditions shaped chiefly by humid northeastern Ohio air, and fall ragweed season is the biggest seasonal spike here. These factors combine to give Dalton a fairly typical seasonal air quality pattern for this part of the country. As with most US destinations, conditions here are best understood by season rather than by a single yearly average.

Today - 20 September | Pollution peaks at 13:00

AQI:

Good

17.9/100

PM2.5 (fine particles):

Good

8.8/100

PM10 (coarse particles):

Good

7.7/100

NO2 (nitrogen dioxide):

Good

15.3/100

O3 (ozone):

Good

17.9/100

SO2 (sulfur dioxide):

Good

0.7/100

CO (carbon monoxide):

Good

0.5/100

HCHO (formaldehyde):

Good

3.0/100

PM1 (ultrafine particles):

Good

3.2/100

Levels show the poorest local air quality during the day

Tomorrow - 21 September | Pollution peaks at 16:00

AQI:

Fair

21.5/100

PM2.5 (fine particles):

Good

6.4/100

PM10 (coarse particles):

Good

5.4/100

NO2 (nitrogen dioxide):

Fair

21.5/100

O3 (ozone):

Good

18.5/100

SO2 (sulfur dioxide):

Good

1.5/100

CO (carbon monoxide):

Good

0.5/100

HCHO (formaldehyde):

Good

4.7/100

PM1 (ultrafine particles):

Good

2.3/100

Pollen forecast in Dalton, Ohio

View pollen forecast

Frequently Asked Questions

Is air quality bad in Dalton, Ohio right now?

On 20 September 2026, overall air quality in Dalton, Ohio is good. AQI is the main air quality indicator at 17.9/100. Pollution peaks around 1:00 PM (O3: 17.9/100).

Will air quality be worse tomorrow in Dalton, Ohio?

On 21 September 2026, air quality conditions in Dalton, Ohio will be worse than today, with AQI forecast at fair at 21.5/100. Pollution peaks around 4:00 PM (NO2: 21.5/100).

When is air pollution at its worst in Dalton, Ohio?

Seasonal changes shape air quality across Dalton, as spring and autumn tend to bring the cleanest, most stable air; by contrast, the hottest, most humid summer days bring the year's worst ozone readings. Fast-moving weather systems typical of the region usually keep pollution from lingering too long.

Are air quality levels in Dalton, Ohio 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.

Want to see air quality forecasts for other cities in United States?

Check air quality in other popular cities:

Data provided by Airmine — Last update: 20 September 2026 at 14:33 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.

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.

Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.

Get the full experience in the Airmine app.