Air quality in Swansea
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
8.1 µg/m³
WHO guideline 15
PM10
8.9 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
11:00 PM
💨
PM2.5 8.1 µg/m³
34Good
12:00 AM
💨
PM2.5 8.1 µg/m³
34Good
1:00 AM
💨
PM2.5 8 µg/m³
33Good
2:00 AM
💨
PM2.5 7.9 µg/m³
33Good
3:00 AM
💨
PM2.5 7.7 µg/m³
32Good
4:00 AM
💨
PM2.5 7.6 µg/m³
32Good
5:00 AM
💨
PM2.5 7.5 µg/m³
31Good
6:00 AM
💨
PM2.5 7.4 µg/m³
31Good
7:00 AM
💨
PM2.5 7.3 µg/m³
30Good
8:00 AM
💨
PM2.5 7.5 µg/m³
31Good
9:00 AM
💨
PM2.5 8.2 µg/m³
41Good
10:00 AM
💨
PM2.5 8.9 µg/m³
49Good
Next few days
daily max · US EPA AQI
Wed
💨
Moderate · UV Very high
66
Thu
💨
Moderate · UV Very high
58
Fri
💨
Moderate · UV Very high
90
Sat
💨
Unhealthy for Sensitive Groups · UV High
119
Sun
💨
Moderate · UV High
96