Air quality in Bethesda
The US Air Quality Index (EPA) grades air from 0 to 500 using fine particles (PM2.5/PM10), ozone and nitrogen dioxide. 0-50 is Good, 51-100 Moderate, 101-150 Unhealthy for Sensitive Groups, and anything higher affects everyone.
PM2.5
10.9 µg/m³
WHO guideline 15
PM10
12.5 µg/m³
WHO guideline 45
Hour by hour (12h) US EPA AQI
10:00 AM
💨
PM2.5 10.9 µg/m³
45 Good
11:00 AM
💨
PM2.5 11.8 µg/m³
49 Good
12:00 PM
💨
PM2.5 12.8 µg/m³
52 Moderate
1:00 PM
💨
PM2.5 12.5 µg/m³
58 Moderate
2:00 PM
💨
PM2.5 11.3 µg/m³
76 Moderate
3:00 PM
💨
PM2.5 10 µg/m³
78 Moderate
4:00 PM
💨
PM2.5 9.1 µg/m³
68 Moderate
5:00 PM
💨
PM2.5 8.8 µg/m³
53 Moderate
6:00 PM
💨
PM2.5 9.5 µg/m³
44 Good
7:00 PM
💨
PM2.5 10.7 µg/m³
45 Good
8:00 PM
💨
PM2.5 9.4 µg/m³
39 Good
9:00 PM
💨
PM2.5 6.3 µg/m³
27 Good
Next few days daily max · US EPA AQI
Fri
💨
Moderate · UV Moderate
78
Sat
💨
Good · UV Moderate
34
Sun
💨
Moderate · UV Moderate
83
Mon
💨
Unhealthy for Sensitive Groups · UV Moderate
133
Tue
💨
Unhealthy for Sensitive Groups · UV Moderate
139
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Precip NEXRAD · NOAA Temp Wind Clouds Terrain