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WeatherLive › California › Fullerton › Air Quality

Fullerton, CA Air Quality

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Air quality in Fullerton

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
18.8 µg/m³
WHO guideline 15
PM10
22.2 µg/m³
WHO guideline 45
NO₂ · O₃
53 · 15
µg/m³

Hour by hour (12h)

US EPA AQI
4:00 AM 💨 PM2.5 18.8 µg/m³
65Moderate
5:00 AM 💨 PM2.5 19.3 µg/m³
66Moderate
6:00 AM 💨 PM2.5 19.5 µg/m³
67Moderate
7:00 AM 💨 PM2.5 20 µg/m³
68Moderate
8:00 AM 💨 PM2.5 21 µg/m³
70Moderate
9:00 AM 💨 PM2.5 19 µg/m³
66Moderate
10:00 AM 💨 PM2.5 18.7 µg/m³
65Moderate
11:00 AM 💨 PM2.5 18.3 µg/m³
64Moderate
12:00 PM 💨 PM2.5 18.5 µg/m³
64Moderate
1:00 PM 💨 PM2.5 18.6 µg/m³
73Moderate
2:00 PM 💨 PM2.5 19.3 µg/m³
85Moderate
3:00 PM 💨 PM2.5 20.1 µg/m³
90Moderate

Next few days

daily max · US EPA AQI
Wed 💨 Moderate · UV High
90
Thu 💨 Moderate · UV High
96
Fri 💨 Unhealthy for Sensitive Groups · UV High
116
Sat 💨 Unhealthy for Sensitive Groups · UV High
110
Sun 💨 Moderate · UV Very high
84

Weather map — Fullerton

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Updated: 4:46 AM