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WeatherLive › California › La Mesa › Air Quality

La Mesa, CA Air Quality

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Air quality in La Mesa

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
65
Moderate
PM2.5
18.7 µg/m³
WHO guideline 15
PM10
26.7 µg/m³
WHO guideline 45
NO₂ · O₃
10 · 94
µg/m³

Hour by hour (12h)

US EPA AQI
2:00 PM 💨 PM2.5 18.7 µg/m³
65Moderate
3:00 PM 💨 PM2.5 16.8 µg/m³
61Moderate
4:00 PM 💨 PM2.5 15.2 µg/m³
58Moderate
5:00 PM 💨 PM2.5 14.5 µg/m³
56Moderate
6:00 PM 💨 PM2.5 14.4 µg/m³
56Moderate
7:00 PM 💨 PM2.5 12.8 µg/m³
52Moderate
8:00 PM 💨 PM2.5 11.9 µg/m³
50Good
9:00 PM 💨 PM2.5 11.3 µg/m³
47Good
10:00 PM 💨 PM2.5 12.9 µg/m³
53Moderate
11:00 PM 💨 PM2.5 15.6 µg/m³
58Moderate
12:00 AM 💨 PM2.5 18 µg/m³
63Moderate
1:00 AM 💨 PM2.5 20.2 µg/m³
68Moderate

Next few days

daily max · US EPA AQI
Tue 💨 Moderate · UV High
99
Wed 💨 Moderate · UV Moderate
78
Thu 💨 Moderate · UV Moderate
55
Fri 💨 Moderate · UV Moderate
59
Sat 💨 Moderate · UV High
60

Weather map — La Mesa

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Updated: 2:59 PM