Louisiana air quality

Mansfield, Louisiana Air Quality

De Soto Parish32.038, -93.700

The nearest monitor to Mansfield, at Shreveport Airport, 35 miles away, measured an index of 39 at Sun, 12:00 PM CDT, which is Good for fine particles (PM2.5). Louisiana Department of Environmental Quality forecasts Moderate for Shreveport today and Moderate tomorrow. NOAA’s analysts drew light wildfire smoke over the town today.

Measured now
39 · Good
Today
84 · Moderate
Tomorrow
67 · Moderate
Pollutant
PM2.5

Fine particles on the map

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

Now

Good

Nearest monitor
Shreveport Airport, 35 miles away (site 220150008)
Index measured
39 · Good
Measured at
Sun, 12:00 PM CDT
Fine particles
6.5 µg/m³
Ozone
42 ppb
Reporting area
Shreveport, LA, 35 miles away
Reported by
Louisiana Department of Environmental Quality
Area index
40 · Good

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 Shreveport, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
TodayModerate84Ozone
TomorrowModerate67Ozone

The forecaster’s discussion

Written by Louisiana Department of Environmental Quality for Shreveport 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 60, 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 CDT42Good7.8
Sun, 10:00 AM CDT42Good7.6
Sun, 11:00 AM CDT42Good7.5
Sun, 12:00 PM CDT38Good5.8
Sun, 1:00 PM CDT37Good6.4
Sun, 2:00 PM CDT37Good6.2
Sun, 3:00 PM CDT35Good5.830.8
Sun, 4:00 PM CDT35Good6.334.5
Sun, 5:00 PM CDT37Good7.337.6
Sun, 6:00 PM CDT37Good7.139.7
Sun, 7:00 PM CDT40Good8.441.2
Sun, 8:00 PM CDT41Good7.442
Sun, 9:00 PM CDT43Good8.641.8
Sun, 10:00 PM CDT43Good8.240.8
Sun, 11:00 PM CDT43Good7.638.8
Mon, 12:00 AM CDT43Good8.136.1
Mon, 1:00 AM CDT44Good8.533.6
Mon, 2:00 AM CDT46Good8.431.6
Mon, 3:00 AM CDT44Good7.829.5
Mon, 4:00 AM CDT43Good6.727
Mon, 5:00 AM CDT42Good7.224.6
Mon, 6:00 AM CDT39Good6.222.3
Mon, 7:00 AM CDT37Good5.920.4
Mon, 8:00 AM CDT35Good5.819.1
Mon, 9:00 AM CDT34Good617.9
Mon, 10:00 AM CDT35Good6.517.5
Mon, 11:00 AM CDT36Good718.2
Mon, 12:00 PM CDT37Good6.820.4
Mon, 1:00 PM CDT39Good8.423.9
Mon, 2:00 PM CDT43Good8.928.2
Mon, 3:00 PM CDT44Good8.332.8
Mon, 4:00 PM CDT43Good7.437.5
Mon, 5:00 PM CDT42Good7.441.5
Mon, 6:00 PM CDT42Good7.744.2
Mon, 7:00 PM CDT45Good8.945.8
Mon, 8:00 PM CDT47Good9.346
Mon, 9:00 PM CDT48Good9.344.2
Mon, 10:00 PM CDT48Good8.641.7
Mon, 11:00 PM CDT47Good8.339
Tue, 12:00 AM CDT47Good835.9
Tue, 1:00 AM CDT46Good832.6
Tue, 2:00 AM CDT47Good9.329.2
Tue, 3:00 AM CDT47Good8.325.4
Tue, 4:00 AM CDT48Good9.222
Tue, 5:00 AM CDT51Moderate10.919.7
Tue, 6:00 AM CDT51Moderate9.217.7
Tue, 7:00 AM CDT52Moderate11.115.9
Tue, 8:00 AM CDT53Moderate11.114.8
Tue, 9:00 AM CDT54Moderate11.514.4
Tue, 10:00 AM CDT57Moderate13.815.8
Tue, 11:00 AM CDT57Moderate12.819.6
Tue, 12:00 PM CDT56Moderate10.924.7
Tue, 1:00 PM CDT55Moderate11.230.2
Tue, 2:00 PM CDT54Moderate9.635.9
Tue, 3:00 PM CDT53Moderate9.341.4
Tue, 4:00 PM CDT49Good7.746.7
Tue, 5:00 PM CDT51Moderate9.651.5
Tue, 6:00 PM CDT51Moderate9.154.8
Tue, 7:00 PM CDT52Moderate1055.5
Tue, 8:00 PM CDT52Moderate10.253.8
Tue, 9:00 PM CDT52Moderate9.151.1
Tue, 10:00 PM CDT51Moderate8.848.1
Tue, 11:00 PM CDT49Good7.945
Wed, 12:00 AM CDT48Good8.241.8
Wed, 1:00 AM CDT49Good9.138.7
Wed, 2:00 AM CDT50Good9.735.4
Wed, 3:00 AM CDT52Moderate10.432.1
Wed, 4:00 AM CDT53Moderate1229.9
Wed, 5:00 AM CDT56Moderate13.628.3
Wed, 6:00 AM CDT58Moderate13.626.9
Wed, 7:00 AM CDT60Moderate15.325.3

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 Mansfield 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 3.7 µg/m³ around Sat, 11:00 PM CDT.

Smoke on the radar over Mansfield

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 MansfieldWarnings in De Soto ParishLive radar over MansfieldLouisiana 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.