Louisiana air quality

Delcambre, Louisiana Air Quality

Iberia Parish29.948, -91.989

The nearest monitor to Delcambre, at St. Martinville, 8 miles away, measured an index of 49 at Mon, 5:00 PM CDT, which is Good for ground-level ozone. Louisiana Department of Environmental Quality forecasts Moderate for Lafayette today and Moderate tomorrow. NOAA’s analysts drew light wildfire smoke over the town today.

Measured now
49 · Good
Today
77 · Moderate
Tomorrow
74 · Moderate
Pollutant
Ozone

Fine particles on the map

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

Now

Good

Nearest monitor
St. Martinville, 8 miles away (site 220990001)
Index measured
49 · Good
Measured at
Mon, 5:00 PM CDT
Ozone
56 ppb
Reporting area
Lafayette, LA, 19 miles away
Reported by
Louisiana Department of Environmental Quality
Area index
50 · 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 Lafayette, written by a forecaster rather than read off a model.

DayCategoryIndexPollutant
TodayModerate77Ozone
TomorrowModerate74Ozone
Wednesday, September 30Moderate51Ozone

The forecaster’s discussion

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

Monday, calm to light northeasterly winds will limit pollutant dispersion in Louisiana. Furthermore, mostly sunny skies, temperatures around 90-95F, and lingering thin smoke will promote ozone formation. Thus, AQI levels will be low- to mid-Moderate in most cities, with high-Moderate AQI levels expected in Baton Rouge. Tuesday, upper-level high pressure will reduce vertical mixing in the atmosphere. In addition, mostly sunny skies and temperatures around 90-95F will enhance ozone development, while light east-southeasterly winds will limit dispersion. Therefore, AQI levels will be low- to mid-Moderate over most of the state, with high-Moderate AQI levels expected to continue in Baton Rouge. Wednesday, southeasterly winds will strengthen slightly as a low pressure system develops over the central Plains, increasing pollutant dispersion in the Bayou State. Additionally, isolated afternoon thunderstorms will limit ozone formation. However, mostly sunny and warm conditions will lead to high-Good to low-Moderate AQI levels for ozone.

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 50, Good, around Mon, 6:00 PM CDT, from the run issued Mon, 7:00 AM CDT. This is a model, not a measurement.

HourIndexCategoryPM2.5Ozone
Mon, 6:00 PM CDT50Good9.355
Mon, 7:00 PM CDT50Good7.754.6
Mon, 8:00 PM CDT49Good5.853.2
Mon, 9:00 PM CDT46Good5.650.9
Mon, 10:00 PM CDT44Good5.148.4
Mon, 11:00 PM CDT42Good4.245.3
Tue, 12:00 AM CDT38Good5.342
Tue, 1:00 AM CDT35Good6.838.1
Tue, 2:00 AM CDT35Good6.833.7
Tue, 3:00 AM CDT36Good6.730.5
Tue, 4:00 AM CDT37Good6.927.1
Tue, 5:00 AM CDT36Good6.325
Tue, 6:00 AM CDT36Good6.523
Tue, 7:00 AM CDT38Good7.421.5
Tue, 8:00 AM CDT38Good720.3
Tue, 9:00 AM CDT38Good6.720
Tue, 10:00 AM CDT38Good7.222.2
Tue, 11:00 AM CDT38Good725.7
Tue, 12:00 PM CDT38Good7.229.9
Tue, 1:00 PM CDT39Good7.533.6
Tue, 2:00 PM CDT39Good7.537.4
Tue, 3:00 PM CDT39Good7.241.4
Tue, 4:00 PM CDT42Good745.2
Tue, 5:00 PM CDT44Good7.148.3
Tue, 6:00 PM CDT45Good6.149.6
Tue, 7:00 PM CDT44Good5.548.9
Tue, 8:00 PM CDT44Good6.447.1
Tue, 9:00 PM CDT43Good6.946.9
Tue, 10:00 PM CDT42Good6.346
Tue, 11:00 PM CDT41Good5.644.6
Wed, 12:00 AM CDT39Good6.142.3
Wed, 1:00 AM CDT36Good639.5
Wed, 2:00 AM CDT33Good5.836.2
Wed, 3:00 AM CDT33Good6.133.5
Wed, 4:00 AM CDT33Good5.931.3
Wed, 5:00 AM CDT32Good5.228
Wed, 6:00 AM CDT30Good4.724.9
Wed, 7:00 AM CDT28Good4.721.1
Wed, 8:00 AM CDT28Good4.718.5
Wed, 9:00 AM CDT24Good3.817.2
Wed, 10:00 AM CDT18Good2.517.7
Wed, 11:00 AM CDT17Good1.418.8
Wed, 12:00 PM CDT19Good2.120
Wed, 1:00 PM CDT19Good2.321.2
Wed, 2:00 PM CDT21Good2.623.4
Wed, 3:00 PM CDT24Good2.726.4
Wed, 4:00 PM CDT26Good2.828.7
Wed, 5:00 PM CDT28Good2.630.3
Wed, 6:00 PM CDT29Good2.331
Wed, 7:00 PM CDT29Good1.631.1
Wed, 8:00 PM CDT28Good0.231
Wed, 9:00 PM CDT28Good2.231
Wed, 10:00 PM CDT28Good1.730.5
Wed, 11:00 PM CDT28Good0.130.2
Thu, 12:00 AM CDT27Good0.429.3
Thu, 1:00 AM CDT25Good0.227.9
Thu, 2:00 AM CDT24Good0.126.1
Thu, 3:00 AM CDT21Good1.823.9
Thu, 4:00 AM CDT19Good3.121.8
Thu, 5:00 AM CDT18Good3.119.8
Thu, 6:00 AM CDT17Good3.618
Thu, 7:00 AM CDT15Good1.116

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 Delcambre in satellite imagery today (Mon, 7:00 AM CDT to Mon, 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 1.5 µg/m³ around Mon, 9:00 PM CDT.

Smoke on the radar over Delcambre

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 DelcambreWarnings in Iberia ParishLive radar over DelcambreLouisiana 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.