Air quality in Baltimore
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.
US AQI · EPA
120
Unhealthy for Sensitive Groups
PM2.5
9.6 µg/m³
WHO guideline 15
PM10
9.8 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
3:00 PM
💨
PM2.5 9.6 µg/m³
120Unhealthy for Sensitive Groups
4:00 PM
💨
PM2.5 9.4 µg/m³
113Unhealthy for Sensitive Groups
5:00 PM
💨
PM2.5 8.9 µg/m³
101Unhealthy for Sensitive Groups
6:00 PM
💨
PM2.5 9 µg/m³
85Moderate
7:00 PM
💨
PM2.5 9.3 µg/m³
60Moderate
8:00 PM
💨
PM2.5 8.7 µg/m³
49Good
9:00 PM
💨
PM2.5 7.3 µg/m³
48Good
10:00 PM
💨
PM2.5 6.3 µg/m³
49Good
11:00 PM
💨
PM2.5 6.2 µg/m³
50Good
12:00 AM
💨
PM2.5 6.2 µg/m³
49Good
1:00 AM
💨
PM2.5 6.3 µg/m³
47Good
2:00 AM
💨
PM2.5 6.5 µg/m³
45Good
Next few days
daily max · US EPA AQI
Wed
💨
Unhealthy for Sensitive Groups · UV High
120
Thu
💨
Moderate · UV High
98
Fri
💨
Moderate · UV High
98
Sat
💨
Moderate · UV High
54