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Portsmouth, OH Air Quality

← Portsmouth

Air quality in Portsmouth

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
40
Good
PM2.5
9.7 µg/m³
WHO guideline 15
PM10
10 µg/m³
WHO guideline 45
NO₂ · O₃
5 · 66
µg/m³

Hour by hour (12h)

US EPA AQI
8:00 AM 💨 PM2.5 9.7 µg/m³
40Good
9:00 AM 💨 PM2.5 8.9 µg/m³
37Good
10:00 AM 💨 PM2.5 8.3 µg/m³
41Good
11:00 AM 💨 PM2.5 8.3 µg/m³
47Good
12:00 PM 💨 PM2.5 9.5 µg/m³
60Moderate
1:00 PM 💨 PM2.5 10.9 µg/m³
85Moderate
2:00 PM 💨 PM2.5 11.7 µg/m³
99Moderate
3:00 PM 💨 PM2.5 11.8 µg/m³
108Unhealthy for Sensitive Groups
4:00 PM 💨 PM2.5 11.1 µg/m³
110Unhealthy for Sensitive Groups
5:00 PM 💨 PM2.5 10.8 µg/m³
103Unhealthy for Sensitive Groups
6:00 PM 💨 PM2.5 10.9 µg/m³
88Moderate
7:00 PM 💨 PM2.5 11 µg/m³
65Moderate

Next few days

daily max · US EPA AQI
Fri 💨 Unhealthy for Sensitive Groups · UV High
110
Sat 💨 Moderate · UV High
73
Sun 💨 Good · UV High
43
Mon 💨 Moderate · UV High
65
Tue 💨 Good · UV High
34
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Updated: 8:36 AM