Air quality in Ashton-Sandy Spring
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
5.1 µg/m³
WHO guideline 15
PM10
5.2 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
9:00 AM
💨
PM2.5 5.1 µg/m³
28Good
10:00 AM
💨
PM2.5 5.4 µg/m³
37Good
11:00 AM
💨
PM2.5 5.7 µg/m³
44Good
12:00 PM
💨
PM2.5 5.8 µg/m³
50Good
1:00 PM
💨
PM2.5 5.6 µg/m³
68Moderate
2:00 PM
💨
PM2.5 5.7 µg/m³
81Moderate
3:00 PM
💨
PM2.5 6.2 µg/m³
93Moderate
4:00 PM
💨
PM2.5 6.7 µg/m³
98Moderate
5:00 PM
💨
PM2.5 7 µg/m³
93Moderate
6:00 PM
💨
PM2.5 7.3 µg/m³
66Moderate
7:00 PM
💨
PM2.5 9.7 µg/m³
44Good
8:00 PM
💨
PM2.5 13.4 µg/m³
54Moderate
Next few days
daily max · US EPA AQI
Fri
💨
Moderate · UV High
98
Sat
💨
Moderate · UV Moderate
77
Sun
💨
Moderate · UV High
52