Air quality in Riverhead
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
3.2 µg/m³
WHO guideline 15
PM10
4.7 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
1:00 PM
💨
PM2.5 3.2 µg/m³
65Moderate
2:00 PM
💨
PM2.5 4.1 µg/m³
78Moderate
3:00 PM
💨
PM2.5 4.8 µg/m³
91Moderate
4:00 PM
💨
PM2.5 5.8 µg/m³
103Unhealthy for Sensitive Groups
5:00 PM
💨
PM2.5 6.7 µg/m³
108Unhealthy for Sensitive Groups
6:00 PM
💨
PM2.5 7.3 µg/m³
103Unhealthy for Sensitive Groups
7:00 PM
💨
PM2.5 7.9 µg/m³
91Moderate
8:00 PM
💨
PM2.5 8.1 µg/m³
78Moderate
9:00 PM
💨
PM2.5 8.6 µg/m³
65Moderate
10:00 PM
💨
PM2.5 9.4 µg/m³
51Moderate
11:00 PM
💨
PM2.5 10.2 µg/m³
46Good
12:00 AM
💨
PM2.5 10.7 µg/m³
45Good
Next few days
daily max · US EPA AQI
Sun
💨
Unhealthy for Sensitive Groups · UV High
108
Mon
💨
Moderate · UV High
88
Tue
💨
Moderate · UV High
78
Wed
💨
Unhealthy for Sensitive Groups · UV High
103
Thu
💨
Moderate · UV High
56