Louisiana air quality

Many, Louisiana Air Quality

Sabine Parish31.569, -93.484

No monitor near Many has published a reading for this hour. Louisiana Department of Environmental Quality forecasts Moderate for Alexandria today and Moderate tomorrow. NOAA’s analysts drew light wildfire smoke over the town today.

Measured now
No reading
Today
67 · Moderate
Tomorrow
58 · Moderate
Pollutant
Ozone

Fine particles on the map

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

Forecast fine particulate matter from NOAA’s National Air Quality Forecast Capability over Many, Louisiana 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 Many right now. All Louisiana warnings.

Now

Reporting area
Alexandria, LA, 64 miles away
Reported by
Louisiana Department of Environmental Quality

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

Today and tomorrow

Louisiana Department of Environmental Quality's own forecast for Alexandria, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
TodayModerate67Ozone
TomorrowModerate58PM2.5

The forecaster’s discussion

Written by Louisiana Department of Environmental Quality for Alexandria and filed with AirNow.

Saturday, light southeasterly to southerly winds will hinder dispersion and allow regional thin smoke and other pollutants to linger over Louisiana. Furthermore, sunny and hot conditions will continue to promote ozone formation. Therefore, AQI levels will be low- to mid-Moderate in most locations, with high-Moderate AQI levels expected in Baton Rouge. Sunday and Monday, as surface high pressure settles over the Bayou State, light and variable winds will inhibit dispersion, allowing pollutants to remain over the state. In addition, mostly sunny and hot conditions will be conducive for ozone production each afternoon. Thus, AQI levels will be low- to mid-Moderate in most cities on both days.

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 57, Moderate, around Wed, 7:00 AM CDT, from the run issued Sun, 7:00 AM CDT. This is a model, not a measurement.

HourIndexCategoryPM2.5Ozone
Sun, 9:00 AM CDT31Good6
Sun, 10:00 AM CDT33Good6.5
Sun, 11:00 AM CDT34Good6.4
Sun, 12:00 PM CDT34Good6.3
Sun, 1:00 PM CDT34Good6.4
Sun, 2:00 PM CDT34Good6.4
Sun, 3:00 PM CDT36Good732.7
Sun, 4:00 PM CDT38Good7.637.5
Sun, 5:00 PM CDT39Good7.441.4
Sun, 6:00 PM CDT40Good7.243.8
Sun, 7:00 PM CDT41Good7.244.9
Sun, 8:00 PM CDT41Good6.844.9
Sun, 9:00 PM CDT40Good6.943.7
Sun, 10:00 PM CDT39Good7.441.4
Sun, 11:00 PM CDT39Good6.938.6
Mon, 12:00 AM CDT37Good5.736.2
Mon, 1:00 AM CDT35Good5.533.6
Mon, 2:00 AM CDT34Good5.830.8
Mon, 3:00 AM CDT33Good5.528.3
Mon, 4:00 AM CDT32Good5.426.1
Mon, 5:00 AM CDT32Good5.624.4
Mon, 6:00 AM CDT31Good5.322.9
Mon, 7:00 AM CDT29Good520.9
Mon, 8:00 AM CDT27Good4.418.5
Mon, 9:00 AM CDT27Good4.816.8
Mon, 10:00 AM CDT28Good5.416.7
Mon, 11:00 AM CDT29Good5.918
Mon, 12:00 PM CDT33Good7.220.6
Mon, 1:00 PM CDT41Good8.724.4
Mon, 2:00 PM CDT46Good9.128.5
Mon, 3:00 PM CDT48Good932.9
Mon, 4:00 PM CDT48Good8.837.3
Mon, 5:00 PM CDT47Good8.541.1
Mon, 6:00 PM CDT48Good8.643.9
Mon, 7:00 PM CDT48Good8.745.5
Mon, 8:00 PM CDT48Good8.845.6
Mon, 9:00 PM CDT46Good7.944.3
Mon, 10:00 PM CDT46Good8.142.5
Mon, 11:00 PM CDT46Good8.240.3
Tue, 12:00 AM CDT46Good7.838.4
Tue, 1:00 AM CDT44Good7.336.7
Tue, 2:00 AM CDT44Good7.734.8
Tue, 3:00 AM CDT44Good7.932.9
Tue, 4:00 AM CDT45Good8.931.3
Tue, 5:00 AM CDT46Good9.130.1
Tue, 6:00 AM CDT46Good7.929.1
Tue, 7:00 AM CDT46Good8.928.4
Tue, 8:00 AM CDT46Good8.427.4
Tue, 9:00 AM CDT47Good8.926.8
Tue, 10:00 AM CDT49Good9.927
Tue, 11:00 AM CDT49Good8.828.2
Tue, 12:00 PM CDT48Good8.230.2
Tue, 1:00 PM CDT48Good8.532.7
Tue, 2:00 PM CDT47Good835.5
Tue, 3:00 PM CDT44Good7.138.5
Tue, 4:00 PM CDT38Good5.441.5
Tue, 5:00 PM CDT41Good6.444
Tue, 6:00 PM CDT42Good6.745.9
Tue, 7:00 PM CDT43Good7.146.6
Tue, 8:00 PM CDT43Good6.646.4
Tue, 9:00 PM CDT43Good4.946
Tue, 10:00 PM CDT42Good545.1
Tue, 11:00 PM CDT40Good4.643.6
Wed, 12:00 AM CDT38Good4.941.7
Wed, 1:00 AM CDT36Good639.6
Wed, 2:00 AM CDT34Good7.537
Wed, 3:00 AM CDT43Good9.334.6
Wed, 4:00 AM CDT51Moderate10.933.3
Wed, 5:00 AM CDT54Moderate11.932.3
Wed, 6:00 AM CDT55Moderate12.231.5
Wed, 7:00 AM CDT57Moderate13.130.9

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 Hazard Mapping System analysts drew light smoke over Many in satellite imagery today (Sun, 7:00 AM CDT to Sun, 10:00 AM CDT). That is smoke seen from above; it is not always smoke at ground level.

NOAA’s model forecasts near-surface smoke peaking at 6.7 µg/m³ around Sat, 10:00 PM CDT.

Smoke on the radar over Many

What this means

Moderate

Air quality is acceptable. There may be a risk for some people, particularly those who are unusually sensitive to air pollution.

Who is affected
People who are unusually sensitive to ozone or fine particles.
What to do
If you are unusually sensitive, consider making long or intense outdoor activity shorter or easier.
Index range
51 to 100

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 ManyWarnings in Sabine ParishLive radar over ManyLouisiana 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.