New York air quality

Searingtown, New York Air Quality

Nassau County40.775, -73.656

The nearest monitor to Searingtown, at Queens Near-road, 9 miles away, measured an index of 23 at Sun, 2:00 PM EDT, which is Good for fine particles (PM2.5). New York Dept. of Environmental Conservation forecasts Good for Long Island Region today and Good tomorrow. NOAA’s analysts drew light wildfire smoke over the town today.

Measured now
23 · Good
Today
34 · Good
Tomorrow
36 · Good
Pollutant
PM2.5

Fine particles on the map

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

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Searingtown, New York 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 Searingtown right now. All New York warnings.

Now

Good

Nearest monitor
Queens Near-road, 9 miles away (site 360810125)
Index measured
23 · Good
Measured at
Sun, 2:00 PM EDT
Fine particles
4.3 µg/m³
Reporting area
Long Island Region, NY, 2 miles away
Reported by
New York Dept. of Environmental Conservation
Area index
28 · Good

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

Today and tomorrow

New York Dept. of Environmental Conservation's own forecast for Long Island Region, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
TodayGood34Ozone
TomorrowGood36Ozone

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 54, Moderate, around Mon, 1:00 AM EDT, from the run issued Sun, 8:00 AM EDT. This is a model, not a measurement.

HourIndexCategoryPM2.5Ozone
Sun, 10:00 AM EDT11Good2.2
Sun, 11:00 AM EDT11Good1.9
Sun, 12:00 PM EDT10Good1.8
Sun, 1:00 PM EDT12Good2.5
Sun, 2:00 PM EDT17Good3.8
Sun, 3:00 PM EDT23Good5.4
Sun, 4:00 PM EDT24Good2.826.8
Sun, 5:00 PM EDT25Good3.127.3
Sun, 6:00 PM EDT26Good3.928.2
Sun, 7:00 PM EDT27Good4.229.4
Sun, 8:00 PM EDT28Good4.130.6
Sun, 9:00 PM EDT29Good4.131.5
Sun, 10:00 PM EDT31Good7.131.1
Sun, 11:00 PM EDT48Good11.629.2
Mon, 12:00 AM EDT53Moderate12.126.9
Mon, 1:00 AM EDT54Moderate11.525.4
Mon, 2:00 AM EDT46Good5.724.2
Mon, 3:00 AM EDT33Good3.622.6
Mon, 4:00 AM EDT26Good3.520.7
Mon, 5:00 AM EDT23Good3.819
Mon, 6:00 AM EDT23Good4.318.4
Mon, 7:00 AM EDT24Good4.419
Mon, 8:00 AM EDT23Good420.1
Mon, 9:00 AM EDT22Good3.820.5
Mon, 10:00 AM EDT19Good3.220.3
Mon, 11:00 AM EDT19Good2.920.3
Mon, 12:00 PM EDT19Good3.220.9
Mon, 1:00 PM EDT20Good3.122
Mon, 2:00 PM EDT21Good3.823.8
Mon, 3:00 PM EDT24Good4.526
Mon, 4:00 PM EDT26Good4.728.5
Mon, 5:00 PM EDT28Good4.331
Mon, 6:00 PM EDT31Good4.933.5
Mon, 7:00 PM EDT32Good6.135.8
Mon, 8:00 PM EDT37Good8.137.4
Mon, 9:00 PM EDT42Good8.438
Mon, 10:00 PM EDT39Good6.838
Mon, 11:00 PM EDT36Good5.737.8
Tue, 12:00 AM EDT34Good637.1
Tue, 1:00 AM EDT33Good5.536.2
Tue, 2:00 AM EDT31Good534.8
Tue, 3:00 AM EDT30Good5.133
Tue, 4:00 AM EDT28Good4.630.9
Tue, 5:00 AM EDT26Good4.128.9
Tue, 6:00 AM EDT25Good4.327.1
Tue, 7:00 AM EDT22Good3.624.9
Tue, 8:00 AM EDT21Good323.2
Tue, 9:00 AM EDT19Good3.221.8
Tue, 10:00 AM EDT19Good2.920.7
Tue, 11:00 AM EDT19Good220.1
Tue, 12:00 PM EDT19Good1.920.1
Tue, 1:00 PM EDT19Good1.521
Tue, 2:00 PM EDT20Good1.522.1
Tue, 3:00 PM EDT21Good1.323.5
Tue, 4:00 PM EDT22Good1.224.8
Tue, 5:00 PM EDT24Good1.626.1
Tue, 6:00 PM EDT25Good1.927
Tue, 7:00 PM EDT25Good2.627.7
Tue, 8:00 PM EDT26Good2.928.4
Tue, 9:00 PM EDT26Good2.828.7
Tue, 10:00 PM EDT26Good2.728.4
Tue, 11:00 PM EDT25Good2.827.7
Wed, 12:00 AM EDT24Good2.726.3
Wed, 1:00 AM EDT22Good2.425
Wed, 2:00 AM EDT21Good2.423.6
Wed, 3:00 AM EDT20Good2.622.4
Wed, 4:00 AM EDT19Good2.620.9
Wed, 5:00 AM EDT18Good2.519.2
Wed, 6:00 AM EDT17Good2.518.4
Wed, 7:00 AM EDT16Good2.417.8
Wed, 8:00 AM EDT16Good2.117.7

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 Searingtown in satellite imagery today (Sun, 8:00 AM EDT to Sun, 11:00 AM EDT). That is smoke seen from above; it is not always smoke at ground level.

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

Smoke on the radar over Searingtown

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 SearingtownWarnings in Nassau CountyLive radar over SearingtownNew York 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.