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Walker Mill, MD Air Quality

← Walker Mill

Air quality in Walker Mill

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
42
Good
PM2.5
10 µg/m³
WHO guideline 15
PM10
10 µg/m³
WHO guideline 45
NO₂ · O₃
28 · 26
µg/m³

Hour by hour (12h)

US EPA AQI
5:00 AM 💨 PM2.5 10 µg/m³
42Good
6:00 AM 💨 PM2.5 8.8 µg/m³
37Good
7:00 AM 💨 PM2.5 8.1 µg/m³
34Good
8:00 AM 💨 PM2.5 8.3 µg/m³
35Good
9:00 AM 💨 PM2.5 9.5 µg/m³
40Good
10:00 AM 💨 PM2.5 8.6 µg/m³
46Good
11:00 AM 💨 PM2.5 5.9 µg/m³
76Moderate
12:00 PM 💨 PM2.5 5.5 µg/m³
96Moderate
1:00 PM 💨 PM2.5 5.9 µg/m³
101Unhealthy for Sensitive Groups
2:00 PM 💨 PM2.5 6.5 µg/m³
106Unhealthy for Sensitive Groups
3:00 PM 💨 PM2.5 7 µg/m³
113Unhealthy for Sensitive Groups
4:00 PM 💨 PM2.5 7.4 µg/m³
119Unhealthy for Sensitive Groups

Next few days

daily max · US EPA AQI
Wed 💨 Unhealthy for Sensitive Groups · UV Very high
119
Thu 💨 Unhealthy for Sensitive Groups · UV High
136
Fri 💨 Moderate · UV Very high
91
Sat 💨 Moderate · UV Low
81
Sun 💨 Moderate · UV High
65
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Updated: 5:38 AM