Ohio air quality

Elmwood Place, Ohio Air Quality

Hamilton County39.187, -84.488

The nearest monitor to Elmwood Place, at Carthage, under a mile away, measured an index of 29 at Sat, 1:00 PM EDT, which is Good for fine particles (PM2.5). Hamilton County Environmental Services forecasts Good for Cincinnati today and Good tomorrow.

Measured now
29 · Good
Today
35 · Good
Tomorrow
45 · Good
Pollutant
PM2.5

Fine particles on the map

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Elmwood Place, 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 Elmwood Place, 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 Elmwood Place right now. All Ohio warnings.

Now

Good

Nearest monitor
Carthage, under a mile away (site 840390610014)
Index measured
29 · Good
Measured at
Sat, 1:00 PM EDT
Fine particles
4.9 µg/m³
Reporting area
Cincinnati, OH, 6 miles away
Reported by
Hamilton County Environmental Services
Area index
35 · Good

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

Today and tomorrow

Hamilton County Environmental Services's own forecast for Cincinnati, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
TodayGood35PM2.5
TomorrowGood45PM2.5
Monday, September 28Moderate51PM2.5

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 59, Moderate, around Sat, 9:00 PM EDT, from the run issued Sat, 8:00 AM EDT. This is a model, not a measurement.

HourIndexCategoryPM2.5Ozone
Sat, 2:00 PM EDT28Good4.5
Sat, 3:00 PM EDT28Good5
Sat, 4:00 PM EDT31Good6.325.8
Sat, 5:00 PM EDT34Good6.829.2
Sat, 6:00 PM EDT35Good6.632.5
Sat, 7:00 PM EDT46Good10.234.9
Sat, 8:00 PM EDT56Moderate15.135.1
Sat, 9:00 PM EDT59Moderate15.733.2
Sat, 10:00 PM EDT59Moderate1330.5
Sat, 11:00 PM EDT56Moderate10.427.5
Sun, 12:00 AM EDT55Moderate10.624.1
Sun, 1:00 AM EDT55Moderate11.120.2
Sun, 2:00 AM EDT55Moderate1116.1
Sun, 3:00 AM EDT53Moderate9.412.7
Sun, 4:00 AM EDT49Good7.610.7
Sun, 5:00 AM EDT46Good7.610.1
Sun, 6:00 AM EDT43Good7.29.9
Sun, 7:00 AM EDT44Good8.29.1
Sun, 8:00 AM EDT42Good7.48.2
Sun, 9:00 AM EDT47Good9.77.3
Sun, 10:00 AM EDT50Good9.97
Sun, 11:00 AM EDT51Moderate9.67.6
Sun, 12:00 PM EDT51Moderate9.19.2
Sun, 1:00 PM EDT49Good8.412.2
Sun, 2:00 PM EDT47Good7.616.2
Sun, 3:00 PM EDT44Good720.8
Sun, 4:00 PM EDT41Good6.425.8
Sun, 5:00 PM EDT38Good6.230.6
Sun, 6:00 PM EDT37Good6.534.4
Sun, 7:00 PM EDT44Good1037
Sun, 8:00 PM EDT53Moderate12.437.6
Sun, 9:00 PM EDT55Moderate12.535.2
Sun, 10:00 PM EDT56Moderate12.332.1
Sun, 11:00 PM EDT56Moderate11.428.6
Mon, 12:00 AM EDT56Moderate11.824.9
Mon, 1:00 AM EDT55Moderate11.521.3
Mon, 2:00 AM EDT55Moderate11.317.9
Mon, 3:00 AM EDT55Moderate10.815.1
Mon, 4:00 AM EDT53Moderate913.1
Mon, 5:00 AM EDT49Good7.612.8
Mon, 6:00 AM EDT45Good7.112
Mon, 7:00 AM EDT46Good8.610.6
Mon, 8:00 AM EDT52Moderate10.79.3
Mon, 9:00 AM EDT53Moderate11.98.2
Mon, 10:00 AM EDT53Moderate107.9
Mon, 11:00 AM EDT52Moderate9.48.3
Mon, 12:00 PM EDT50Good7.99.8
Mon, 1:00 PM EDT42Good6.112.4
Mon, 2:00 PM EDT40Good6.915.9
Mon, 3:00 PM EDT41Good7.420.6
Mon, 4:00 PM EDT41Good7.625.5
Mon, 5:00 PM EDT41Good7.530
Mon, 6:00 PM EDT41Good7.433.8
Mon, 7:00 PM EDT47Good9.635.9
Mon, 8:00 PM EDT50Good9.835.6
Mon, 9:00 PM EDT50Good9.332.9
Mon, 10:00 PM EDT52Moderate10.429.4
Mon, 11:00 PM EDT51Moderate8.525.5
Tue, 12:00 AM EDT48Good7.921.6
Tue, 1:00 AM EDT49Good9.517.8
Tue, 2:00 AM EDT52Moderate11.313.8
Tue, 3:00 AM EDT53Moderate10.610.8
Tue, 4:00 AM EDT53Moderate10.19
Tue, 5:00 AM EDT53Moderate10.88.8
Tue, 6:00 AM EDT54Moderate11.78.4
Tue, 7:00 AM EDT54Moderate10.28.1
Tue, 8:00 AM EDT56Moderate13.27.2

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 Elmwood Place in satellite imagery today.

NOAA’s model forecasts no measurable smoke near the ground here over the next two days.

Smoke on the radar over Elmwood Place

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 Elmwood PlaceWarnings in Hamilton CountyLive radar over Elmwood PlaceOhio 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.