Ohio air quality

Jeffersonville, Ohio Air Quality

Fayette County39.654, -83.564

The nearest monitor to Jeffersonville, at London, 10 miles away, measured an index of 16 at Mon, 1:00 PM EDT, which is Good for ground-level ozone. Regional Air Pollution Control Agency - Dayton forecasts Moderate for Dayton today and Good tomorrow.

Measured now
16 · Good
Today
61 · Moderate
Tomorrow
44 · Good
Pollutant
Ozone

Fine particles on the map

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Jeffersonville, Ohio. Open it for the live map, where it pans and zooms.

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Jeffersonville, Ohio Open the live map with the particulate forecast

Map layer from NOAA National Air Quality Forecast Capability. Boundaries from the Iowa Environmental Mesonet.

Alerts in force

An Air Quality Alert is issued by the National Weather Service on behalf of a state or local agency when pollution is expected to reach a level that harms health. An Air Stagnation Advisory means the air will not move enough to clear what is already in it.

None are in force near Jeffersonville right now. All Ohio warnings.

Now

Good

Nearest monitor
London, 10 miles away (site 390970007)
Index measured
16 · Good
Measured at
Mon, 1:00 PM EDT
Ozone
11 ppb
Reporting area
Dayton, OH, 34 miles away
Reported by
Regional Air Pollution Control Agency - Dayton
Area index
43 · Good

Measured, not modeled. AirNow observations are preliminary until the operating agency certifies them, which happens months later.

Today and tomorrow

Regional Air Pollution Control Agency - Dayton's own forecast for Dayton, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
TodayModerate61Ozone
TomorrowGood44PM2.5
Wednesday, September 23Good50PM2.5
Thursday, September 24Good50PM2.5
Friday, September 25Good50PM2.5

Hour by hour

NOAA’s National Air Quality Forecast Capability, bias-corrected against monitors, for this town’s own coordinate. The worst hour ahead is an index of 56, Moderate, around Wed, 12:00 AM EDT, from the run issued Mon, 8:00 AM EDT. This is a model, not a measurement.

HourIndexCategoryPM2.5Ozone
Mon, 10:00 AM EDT29Good6
Mon, 11:00 AM EDT36Good7.7
Mon, 12:00 PM EDT41Good8.2
Mon, 1:00 PM EDT41Good7.3
Mon, 2:00 PM EDT39Good6.9
Mon, 3:00 PM EDT38Good6.4
Mon, 4:00 PM EDT36Good5.913.5
Mon, 5:00 PM EDT33Good5.513.2
Mon, 6:00 PM EDT31Good5.213.2
Mon, 7:00 PM EDT26Good3.713.4
Mon, 8:00 PM EDT23Good3.813.4
Mon, 9:00 PM EDT22Good3.713.6
Mon, 10:00 PM EDT22Good3.913.7
Mon, 11:00 PM EDT19Good3.214.2
Tue, 12:00 AM EDT17Good2.814.5
Tue, 1:00 AM EDT16Good2.514.9
Tue, 2:00 AM EDT14Good2.515.9
Tue, 3:00 AM EDT16Good2.817.1
Tue, 4:00 AM EDT17Good2.818.3
Tue, 5:00 AM EDT18Good2.819.3
Tue, 6:00 AM EDT18Good2.419.9
Tue, 7:00 AM EDT18Good1.919.4
Tue, 8:00 AM EDT18Good1.719.1
Tue, 9:00 AM EDT17Good1.518.4
Tue, 10:00 AM EDT16Good1.717.5
Tue, 11:00 AM EDT15Good2.216.3
Tue, 12:00 PM EDT14Good2.315.4
Tue, 1:00 PM EDT13Good2.814.8
Tue, 2:00 PM EDT17Good3.614.8
Tue, 3:00 PM EDT21Good4.416.1
Tue, 4:00 PM EDT24Good5.217.9
Tue, 5:00 PM EDT26Good5.120
Tue, 6:00 PM EDT29Good5.922
Tue, 7:00 PM EDT31Good623.7
Tue, 8:00 PM EDT33Good6.325
Tue, 9:00 PM EDT40Good8.525.4
Tue, 10:00 PM EDT51Moderate11.324.9
Tue, 11:00 PM EDT55Moderate13.423.4
Wed, 12:00 AM EDT56Moderate12.621.1
Wed, 1:00 AM EDT52Moderate7.319.2
Wed, 2:00 AM EDT39Good4.717.9
Wed, 3:00 AM EDT29Good3.617
Wed, 4:00 AM EDT22Good2.716.6
Wed, 5:00 AM EDT17Good2.116.6
Wed, 6:00 AM EDT15Good1.616.9
Wed, 7:00 AM EDT16Good1.317.5
Wed, 8:00 AM EDT17Good1.318.4
Wed, 9:00 AM EDT17Good1.318.4
Wed, 10:00 AM EDT16Good1.418
Wed, 11:00 AM EDT16Good217.7
Wed, 12:00 PM EDT16Good2.117.8
Wed, 1:00 PM EDT17Good1.618.4
Wed, 2:00 PM EDT18Good1.519.1
Wed, 3:00 PM EDT18Good1.919.8
Wed, 4:00 PM EDT19Good1.220.6
Wed, 5:00 PM EDT19Good0.422
Wed, 6:00 PM EDT21Good0.523.2
Wed, 7:00 PM EDT22Good1.124.2
Wed, 8:00 PM EDT22Good124.7
Wed, 9:00 PM EDT22Good0.324.8
Wed, 10:00 PM EDT22Good0.724.3
Wed, 11:00 PM EDT21Good1.124
Thu, 12:00 AM EDT21Good0.823.1
Thu, 1:00 AM EDT20Good122
Thu, 2:00 AM EDT19Good1.221.4
Thu, 3:00 AM EDT19Good1.521
Thu, 4:00 AM EDT19Good1.920.7
Thu, 5:00 AM EDT19Good2.320.5
Thu, 6:00 AM EDT19Good220.7
Thu, 7:00 AM EDT19Good0.920.8
Thu, 8:00 AM EDT19Good0.520.9

Fine particles in micrograms per cubic meter, ozone in parts per billion as an 8-hour average. The index for each hour is EPA’s: the ozone figure is already the 8-hour average the ozone index is defined on, and the particle figure is run through EPA’s NowCast, which is how an hourly PM2.5 concentration becomes an index.

Smoke

NOAA’s analysts have not drawn smoke over Jeffersonville in satellite imagery today.

NOAA’s model forecasts near-surface smoke peaking at 0.7 µg/m³ around Sun, 11:00 PM EDT.

Smoke on the radar over Jeffersonville

What this means

Good

Air quality is satisfactory, and air pollution poses little or no risk.

Who is affected
Nobody is expected to be affected.
What to do
It is a good day to be outside.
Index range
0 to 50

Category descriptions are the Environmental Protection Agency’s own.

What these numbers are. An index beside a monitor’s name is a measurement, published hourly by AirNow and preliminary until the operating agency certifies it. A category for today or tomorrow is a state or local agency forecaster’s own forecast for a reporting area. An hourly index is NOAA’s air quality model on a five-kilometer grid, not a reading from any instrument. Where a town has no monitor within reach, only the model figures appear, and the page says so.

Nearby

The nearest towns with a page of their own, closest first.

Weather forecast for JeffersonvilleWarnings in Fayette CountyLive radar over JeffersonvilleOhio air quality

Sources

Observations and daily forecasts from AirNow, the US Environmental Protection Agency’s program with NOAA, the National Park Service, NASA, tribal, state and local agencies. Hourly forecasts from NOAA’s National Air Quality Forecast Capability. Smoke analysis from NOAA’s Hazard Mapping System. Alerts from the National Weather Service. Index categories and breakpoints are EPA’s, as revised in 2024.