Air quality in Salem
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
7.6 µg/m³
WHO guideline 15
PM10
8.4 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
2:00 PM
💨
PM2.5 7.6 µg/m³
68Moderate
3:00 PM
💨
PM2.5 8.1 µg/m³
70Moderate
4:00 PM
💨
PM2.5 8.4 µg/m³
68Moderate
5:00 PM
💨
PM2.5 8.4 µg/m³
61Moderate
6:00 PM
💨
PM2.5 8.3 µg/m³
51Moderate
7:00 PM
💨
PM2.5 8.4 µg/m³
48Good
8:00 PM
💨
PM2.5 8.8 µg/m³
45Good
9:00 PM
💨
PM2.5 8.8 µg/m³
41Good
10:00 PM
💨
PM2.5 8.7 µg/m³
38Good
11:00 PM
💨
PM2.5 8.7 µg/m³
36Good
12:00 AM
💨
PM2.5 8.7 µg/m³
36Good
1:00 AM
💨
PM2.5 8.8 µg/m³
37Good
Next few days
daily max · US EPA AQI
Sat
💨
Moderate · UV Very high
70
Sun
💨
Moderate · UV Very high
75
Mon
💨
Moderate · UV Very high
65
Tue
💨
Good · UV Very high
43
Wed
💨
Good · UV Very high
29