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
6.5 µg/m³
WHO guideline 15
PM10
6.7 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
8:00 AM
💨
PM2.5 6.5 µg/m³
27Good
9:00 AM
💨
PM2.5 6.2 µg/m³
26Good
10:00 AM
💨
PM2.5 7.2 µg/m³
34Good
11:00 AM
💨
PM2.5 7.9 µg/m³
41Good
12:00 PM
💨
PM2.5 8.2 µg/m³
48Good
1:00 PM
💨
PM2.5 8.2 µg/m³
56Moderate
2:00 PM
💨
PM2.5 7.9 µg/m³
66Moderate
3:00 PM
💨
PM2.5 7.6 µg/m³
73Moderate
4:00 PM
💨
PM2.5 7.3 µg/m³
71Moderate
5:00 PM
💨
PM2.5 7.2 µg/m³
63Moderate
6:00 PM
💨
PM2.5 7 µg/m³
48Good
7:00 PM
💨
PM2.5 7.5 µg/m³
45Good
Next few days
daily max · US EPA AQI
Mon
💨
Moderate · UV Very high
73
Tue
💨
Moderate · UV Very high
85
Wed
💨
Unhealthy for Sensitive Groups · UV Very high
147
Thu
💨
Moderate · UV High
86