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
9.4 µg/m³
WHO guideline 15
PM10
12.4 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
11:00 AM
💨
PM2.5 9.4 µg/m³
44Good
12:00 PM
💨
PM2.5 10 µg/m³
48Good
1:00 PM
💨
PM2.5 10.9 µg/m³
65Moderate
2:00 PM
💨
PM2.5 11.6 µg/m³
76Moderate
3:00 PM
💨
PM2.5 12.2 µg/m³
85Moderate
4:00 PM
💨
PM2.5 12.4 µg/m³
85Moderate
5:00 PM
💨
PM2.5 12.5 µg/m³
75Moderate
6:00 PM
💨
PM2.5 11.9 µg/m³
58Moderate
7:00 PM
💨
PM2.5 10.6 µg/m³
48Good
8:00 PM
💨
PM2.5 9.4 µg/m³
42Good
9:00 PM
💨
PM2.5 8.8 µg/m³
37Good
10:00 PM
💨
PM2.5 8.5 µg/m³
35Good
Next few days
daily max · US EPA AQI
Tue
💨
Moderate · UV Very high
85
Wed
💨
Moderate · UV Very high
65
Thu
💨
Moderate · UV Very high
80
Fri
💨
Unhealthy for Sensitive Groups · UV High
108
Sat
💨
Moderate · UV Very high
56