Air quality in Port Arthur
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
10.5 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
6:00 PM
💨
PM2.5 8.1 µg/m³
37Good
7:00 PM
💨
PM2.5 7.8 µg/m³
33Good
8:00 PM
💨
PM2.5 9.5 µg/m³
40Good
9:00 PM
💨
PM2.5 11.5 µg/m³
48Good
10:00 PM
💨
PM2.5 11.6 µg/m³
48Good
11:00 PM
💨
PM2.5 12 µg/m³
50Good
12:00 AM
💨
PM2.5 13.2 µg/m³
53Moderate
1:00 AM
💨
PM2.5 13.9 µg/m³
55Moderate
2:00 AM
💨
PM2.5 14.2 µg/m³
55Moderate
3:00 AM
💨
PM2.5 15.3 µg/m³
58Moderate
4:00 AM
💨
PM2.5 17.2 µg/m³
62Moderate
5:00 AM
💨
PM2.5 20.4 µg/m³
68Moderate
Next few days
daily max · US EPA AQI
Thu
💨
Moderate · UV High
51
Fri
💨
Moderate · UV Very high
71
Sat
💨
Moderate · UV Very high
85
Sun
💨
Moderate · UV Very high
95
Mon
💨
Moderate · UV Very high
71