Maryland air quality

Dunkirk Town Center, Maryland Air Quality

Calvert County38.720, -76.659

The nearest monitor to Dunkirk Town Center, at PG Equestrian Center, 8 miles away, measured an index of 27 at Sat, 1:00 AM EDT, which is Good for ground-level ozone. Metropolitan Washington COG forecasts Good for Northern Virginia and DC today and Good tomorrow. NOAA’s analysts drew light wildfire smoke over the town today.

Measured now
27 · Good
Today
17 · Good
Tomorrow
17 · Good
Pollutant
Ozone

Fine particles on the map

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

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Dunkirk Town Center, Maryland 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 Dunkirk Town Center right now. All Maryland warnings.

Now

Good

Nearest monitor
PG Equestrian Center, 8 miles away (site 240338003)
Index measured
27 · Good
Measured at
Sat, 1:00 AM EDT
Ozone
30 ppb
Reporting area
Northern Virginia and DC, DC, 23 miles away
Reported by
Metropolitan Washington COG
Area index
33 · Good

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

Today and tomorrow

Metropolitan Washington COG's own forecast for Northern Virginia and DC, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
TodayGood17PM2.5
TomorrowGood17PM2.5
Monday, September 28Good22PM2.5
Tuesday, September 29Good39PM2.5
Wednesday, September 30Good39PM2.5

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 27, Good, around Sun, 12:00 AM EDT, from the run issued Fri, 11:00 PM EDT. This is a model, not a measurement.

HourIndexCategoryPM2.5Ozone
Sat, 2:00 AM EDT19Good2.321.8
Sat, 3:00 AM EDT19Good2.920.6
Sat, 4:00 AM EDT18Good3.119.8
Sat, 5:00 AM EDT18Good3.719.3
Sat, 6:00 AM EDT18Good3.119.3
Sat, 7:00 AM EDT20Good4.219.4
Sat, 8:00 AM EDT20Good3.619.5
Sat, 9:00 AM EDT19Good3.519.2
Sat, 10:00 AM EDT18Good3.119.2
Sat, 11:00 AM EDT18Good2.819.4
Sat, 12:00 PM EDT19Good2.320.6
Sat, 1:00 PM EDT20Good1.122.1
Sat, 2:00 PM EDT21Good2.423.1
Sat, 3:00 PM EDT21Good224
Sat, 4:00 PM EDT22Good1.424.7
Sat, 5:00 PM EDT23Good2.525.7
Sat, 6:00 PM EDT24Good1.426.9
Sat, 7:00 PM EDT25Good1.728
Sat, 8:00 PM EDT26Good1.128.2
Sat, 9:00 PM EDT25Good128
Sat, 10:00 PM EDT26Good1.128.2
Sat, 11:00 PM EDT26Good1.328.6
Sun, 12:00 AM EDT27Good0.829.3
Sun, 1:00 AM EDT27Good129.4
Sun, 2:00 AM EDT27Good129.2
Sun, 3:00 AM EDT26Good1.129
Sun, 4:00 AM EDT26Good128.7
Sun, 5:00 AM EDT26Good0.628.6
Sun, 6:00 AM EDT25Good0.928
Sun, 7:00 AM EDT25Good1.327.2
Sun, 8:00 AM EDT24Good1.226.5
Sun, 9:00 AM EDT23Good1.226
Sun, 10:00 AM EDT23Good1.625.7
Sun, 11:00 AM EDT23Good225.6
Sun, 12:00 PM EDT23Good2.125.5
Sun, 1:00 PM EDT23Good1.625.3
Sun, 2:00 PM EDT23Good225.1
Sun, 3:00 PM EDT22Good1.624.9
Sun, 4:00 PM EDT22Good1.824.3
Sun, 5:00 PM EDT21Good3.223.8
Sun, 6:00 PM EDT21Good2.123.1
Sun, 7:00 PM EDT20Good2.722.4
Sun, 8:00 PM EDT19Good2.321.6
Sun, 9:00 PM EDT19Good2.421.1
Sun, 10:00 PM EDT19Good2.820.6
Sun, 11:00 PM EDT19Good2.620.3
Mon, 12:00 AM EDT19Good2.520.4
Mon, 1:00 AM EDT19Good2.320.7
Mon, 2:00 AM EDT19Good2.121.1
Mon, 3:00 AM EDT19Good2.121.3
Mon, 4:00 AM EDT19Good1.621.7
Mon, 5:00 AM EDT20Good122
Mon, 6:00 AM EDT20Good0.922.7
Mon, 7:00 AM EDT21Good123.1
Mon, 8:00 AM EDT21Good0.823

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 Hazard Mapping System analysts drew light smoke over Dunkirk Town Center in satellite imagery today (Fri, 8:00 AM EDT to Fri, 11:00 AM EDT). That is smoke seen from above; it is not always smoke at ground level.

NOAA’s model forecasts near-surface smoke peaking at 0.1 µg/m³ around Sat, 2:00 AM EDT.

Smoke on the radar over Dunkirk Town Center

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 Dunkirk Town CenterWarnings in Calvert CountyLive radar over Dunkirk Town CenterMaryland 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.