Hourly Air Quality Forecast - AQI (US EPA)
Good air quality
Dominant pollutant:
O3
Details
Pollutant Concentrations:
- PM2.5:
5.77 µg/m³
- PM10:
7.79 µg/m³
- O3:
0.035 ppm
- NO2:
5.3 ppb
- SO2:
0.6 ppb
- CO:
0.14 ppm
Health Recommendations:
Air quality is considered satisfactory, and air pollution poses little or no risk.
Good air quality
Dominant pollutant:
O3
Details
Pollutant Concentrations:
- PM2.5:
5.71 µg/m³
- PM10:
7.54 µg/m³
- O3:
0.030 ppm
- NO2:
5.7 ppb
- SO2:
0.6 ppb
- CO:
0.15 ppm
Health Recommendations:
Air quality is considered satisfactory, and air pollution poses little or no risk.
Good air quality
Dominant pollutant:
O3
Details
Pollutant Concentrations:
- PM2.5:
5.58 µg/m³
- PM10:
7.26 µg/m³
- O3:
0.027 ppm
- NO2:
6 ppb
- SO2:
0.6 ppb
- CO:
0.15 ppm
Health Recommendations:
Air quality is considered satisfactory, and air pollution poses little or no risk.
Good air quality
Dominant pollutant:
PM2.5
Details
Pollutant Concentrations:
- PM2.5:
5.19 µg/m³
- PM10:
6.67 µg/m³
- O3:
0.024 ppm
- NO2:
6.3 ppb
- SO2:
0.5 ppb
- CO:
0.15 ppm
Health Recommendations:
Air quality is considered satisfactory, and air pollution poses little or no risk.
Weather Alerts and Warnings for Norwalk
Severe
Future
Possible
Severe Thunderstorm Watch
Severe Thunderstorm Watch issued May 20 at 2:11PM EDT until May 20 at 9:00PM EDT by NWS Upton NY
May 20, 2:11 PM
→ May 20, 9:00 PM
THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH
235 IN EFFECT UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS
IN CONNECTICUT THIS WATCH INCLUDES 4 COUNTIES
IN SOUTHERN CONNECTICUT
FAIRFIELD MIDDLESEX NEW HAVEN
NEW LONDON
IN NEW JERSEY THIS WATCH INCLUDES 5 COUNTIES
IN NORTHEAST NEW JERSEY
BERGEN ESSEX HUDSON
PASSAIC UNION
IN NEW YORK THIS WATCH INCLUDES 11 COUNTIES
IN SOUTHEAST NEW YORK
BRONX KINGS (BROOKLYN) NASSAU
NEW YORK (MANHATTAN) ORANGE PUTNAM
QUEENS RICHMOND (STATEN ISLAND)
ROCKLAND SUFFOLK WESTCHESTER
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