Air quality in Horsham
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.
PM2.5
7.3 µg/m³
WHO guideline 15
PM10
8.5 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
2:00 AM
💨
PM2.5 7.3 µg/m³
30Good
3:00 AM
💨
PM2.5 5.2 µg/m³
24Good
4:00 AM
💨
PM2.5 4.8 µg/m³
25Good
5:00 AM
💨
PM2.5 5 µg/m³
25Good
6:00 AM
💨
PM2.5 5.4 µg/m³
25Good
7:00 AM
💨
PM2.5 5.5 µg/m³
26Good
8:00 AM
💨
PM2.5 4.9 µg/m³
27Good
9:00 AM
💨
PM2.5 4.1 µg/m³
31Good
10:00 AM
💨
PM2.5 4 µg/m³
36Good
11:00 AM
💨
PM2.5 5.4 µg/m³
41Good
12:00 PM
💨
PM2.5 6.4 µg/m³
47Good
1:00 PM
💨
PM2.5 7.3 µg/m³
56Moderate
Next few days
daily max · US EPA AQI
Thu
💨
Moderate · UV High
76
Fri
💨
Moderate · UV Moderate
68
Sun
💨
Moderate · UV Moderate
67
Mon
💨
Moderate · UV High
66