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Northumberland, NH Air Quality

← Northumberland

Air quality in Northumberland

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
27
Good
PM2.5
4.1 µg/m³
WHO guideline 15
PM10
4.1 µg/m³
WHO guideline 45
NO₂ · O₃
2 · 57
µg/m³

Hour by hour (12h)

US EPA AQI
9:00 AM 💨 PM2.5 4.1 µg/m³
27Good
10:00 AM 💨 PM2.5 2.6 µg/m³
30Good
11:00 AM 💨 PM2.5 2 µg/m³
33Good
12:00 PM 💨 PM2.5 1.3 µg/m³
34Good
1:00 PM 💨 PM2.5 1 µg/m³
34Good
2:00 PM 💨 PM2.5 1.1 µg/m³
34Good
3:00 PM 💨 PM2.5 1 µg/m³
34Good
4:00 PM 💨 PM2.5 0.9 µg/m³
34Good
5:00 PM 💨 PM2.5 0.8 µg/m³
33Good
6:00 PM 💨 PM2.5 0.7 µg/m³
31Good
7:00 PM 💨 PM2.5 0.8 µg/m³
28Good
8:00 PM 💨 PM2.5 1.1 µg/m³
26Good

Next few days

daily max · US EPA AQI
Tue 💨 Good · UV Moderate
35
Wed 💨 Good · UV Moderate
37
Thu 💨 Moderate · UV High
81
Fri 💨 Good · UV Moderate
48
Sat 💨 Good · UV Moderate
27
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Updated: 9:51 AM