Lancaster Air Quality Index (AQI) Today

Air quality in Lancaster

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

Good

PM2.5

7.4 µg/m³

WHO guideline 15

PM10

12.7 µg/m³

WHO guideline 45

NO₂ · O₃

1 · 90

µg/m³

Hour by hour (12h)

US EPA AQI

12:00 PM 💨 PM2.5 7.4 µg/m³

43Good

1:00 PM 💨 PM2.5 8 µg/m³

40Good

2:00 PM 💨 PM2.5 7.5 µg/m³

37Good

3:00 PM 💨 PM2.5 5.6 µg/m³

37Good

4:00 PM 💨 PM2.5 3.8 µg/m³

37Good

5:00 PM 💨 PM2.5 2.9 µg/m³

36Good

6:00 PM 💨 PM2.5 2.5 µg/m³

34Good

7:00 PM 💨 PM2.5 2.6 µg/m³

31Good

8:00 PM 💨 PM2.5 2.8 µg/m³

28Good

9:00 PM 💨 PM2.5 3.2 µg/m³

26Good

10:00 PM 💨 PM2.5 3.6 µg/m³

25Good

11:00 PM 💨 PM2.5 4 µg/m³

24Good

Next few days

daily max · US EPA AQI

Tue 💨 Good · UV High

Wed 💨 Good · UV High

Thu 💨 Good · UV High

Fri 💨 Good · UV High

Sat 💨 Good · UV High

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Lancaster, CA Air Quality

Air quality in Lancaster

Hour by hour (12h)

Next few days

Weather map — Lancaster