Maryland air quality

Chinquapin Park, Maryland Air Quality

City of Baltimore39.363, -76.602

The nearest monitor to Chinquapin Park, at Lake Montebello, 2 miles away, measured an index of 32 at Sat, 9:00 PM EDT, which is Good for fine particles (PM2.5). Maryland Department of the Environment forecasts Good for Metro Baltimore today and Good tomorrow.

Measured now
32 · Good
Today
17 · Good
Tomorrow
22 · Good
Pollutant
PM2.5

Fine particles on the map

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

Now

Good

Nearest monitor
Lake Montebello, 2 miles away (site 840245105253)
Index measured
32 · Good
Measured at
Sat, 9:00 PM EDT
Fine particles
6 µg/m³
Ozone
28 ppb
Reporting area
Metro Baltimore, MD, 12 miles away
Reported by
Maryland Department of the Environment
Area index
32 · Good

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

Today and tomorrow

Maryland Department of the Environment's own forecast for Metro Baltimore, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
Saturday, September 26Good22PM2.5
TodayGood17PM2.5
TomorrowGood22PM2.5
Tuesday, September 29Good33PM2.5
Wednesday, September 30Good44PM2.5

The forecaster’s discussion

Written by Maryland Department of the Environment for Metro Baltimore and filed with AirNow.

The influence of a nor’easter will increase and persist through the weekend into early next week. Pristine air quality conditions will result in the gusty winds, periodic rain and clean source region of the air, with Good air quality expected through Monday. The storm system moves east on Tuesday, loosening its grip on the region. Still, regionally clean air will persist. While some modest increase in particle concentrations is expected from the pristine conditions over the weekend, Good AQI continues. By Wednesday, winds will begin a southward shift. There is uncertainty in a warm front and airmass change across the region on Wednesday which impacts the forecast. Still, at present, regional concentrations are expected to remain low, and Good AQI will likely continue. Ozone forecasting has ended for 2026. Fine particle forecasting continues year-round. For the latest air quality information, please visit our website here. -MDE

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 32, Good, around Sun, 7:00 AM EDT, from the run issued Sat, 8:00 AM EDT. This is a model, not a measurement.

HourIndexCategoryPM2.5Ozone
Sun, 12:00 AM EDT26Good1.628.2
Sun, 1:00 AM EDT25Good227.9
Sun, 2:00 AM EDT24Good2.426.4
Sun, 3:00 AM EDT22Good4.624.5
Sun, 4:00 AM EDT23Good522.9
Sun, 5:00 AM EDT24Good4.822.4
Sun, 6:00 AM EDT28Good5.721.8
Sun, 7:00 AM EDT32Good6.521.6
Sun, 8:00 AM EDT32Good5.721.6
Sun, 9:00 AM EDT31Good5.321.8
Sun, 10:00 AM EDT28Good4.522.5
Sun, 11:00 AM EDT27Good4.723.4
Sun, 12:00 PM EDT26Good4.524.2
Sun, 1:00 PM EDT23Good3.624.8
Sun, 2:00 PM EDT23Good2.425.7
Sun, 3:00 PM EDT24Good1.726.3
Sun, 4:00 PM EDT24Good1.726.4
Sun, 5:00 PM EDT24Good2.226.1
Sun, 6:00 PM EDT24Good2.926
Sun, 7:00 PM EDT24Good3.526
Sun, 8:00 PM EDT24Good4.626.2
Sun, 9:00 PM EDT23Good3.725.6
Sun, 10:00 PM EDT22Good3.624.8
Sun, 11:00 PM EDT22Good2.924.5
Mon, 12:00 AM EDT22Good3.524.6
Mon, 1:00 AM EDT22Good3.824.6
Mon, 2:00 AM EDT22Good3.224.4
Mon, 3:00 AM EDT22Good2.524.1
Mon, 4:00 AM EDT22Good224
Mon, 5:00 AM EDT22Good2.224.6
Mon, 6:00 AM EDT22Good3.124.7
Mon, 7:00 AM EDT22Good4.624.4
Mon, 8:00 AM EDT21Good3.223.8
Mon, 9:00 AM EDT21Good323.3
Mon, 10:00 AM EDT20Good3.322.9
Mon, 11:00 AM EDT20Good3.722.6
Mon, 12:00 PM EDT20Good3.422.3
Mon, 1:00 PM EDT20Good2.522.3
Mon, 2:00 PM EDT20Good2.222.6
Mon, 3:00 PM EDT21Good1.423.1
Mon, 4:00 PM EDT22Good1.124.1
Mon, 5:00 PM EDT22Good1.524.9
Mon, 6:00 PM EDT23Good325.1
Mon, 7:00 PM EDT22Good424.9
Mon, 8:00 PM EDT24Good5.624.7
Mon, 9:00 PM EDT25Good4.824.1
Mon, 10:00 PM EDT28Good5.523.3
Mon, 11:00 PM EDT28Good5.222.6
Tue, 12:00 AM EDT31Good6.221.7
Tue, 1:00 AM EDT30Good5.321.3
Tue, 2:00 AM EDT32Good620.9
Tue, 3:00 AM EDT31Good5.621
Tue, 4:00 AM EDT30Good5.220.8
Tue, 5:00 AM EDT29Good5.220.8
Tue, 6:00 AM EDT26Good3.820
Tue, 7:00 AM EDT28Good5.619.1
Tue, 8:00 AM EDT26Good418.2

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 Chinquapin Park 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 Chinquapin Park

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 Chinquapin ParkWarnings in City of BaltimoreLive radar over Chinquapin ParkMaryland 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.