Air quality in Purchase
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
7 µg/m³
WHO guideline 15
PM10
7.1 µg/m³
WHO guideline 45
Hour by hour (12h)
US EPA AQI
10:00 AM
💨
PM2.5 7 µg/m³
44Good
11:00 AM
💨
PM2.5 6.1 µg/m³
56Moderate
12:00 PM
💨
PM2.5 5.6 µg/m³
71Moderate
1:00 PM
💨
PM2.5 6.1 µg/m³
80Moderate
2:00 PM
💨
PM2.5 7.2 µg/m³
88Moderate
3:00 PM
💨
PM2.5 8.4 µg/m³
100Moderate
4:00 PM
💨
PM2.5 9.6 µg/m³
110Unhealthy for Sensitive Groups
5:00 PM
💨
PM2.5 10.2 µg/m³
110Unhealthy for Sensitive Groups
6:00 PM
💨
PM2.5 10.2 µg/m³
95Moderate
7:00 PM
💨
PM2.5 12 µg/m³
66Moderate
8:00 PM
💨
PM2.5 14.6 µg/m³
56Moderate
9:00 PM
💨
PM2.5 16.3 µg/m³
60Moderate
Next few days
daily max · US EPA AQI
Wed
💨
Unhealthy for Sensitive Groups · UV Very high
110
Thu
💨
Unhealthy for Sensitive Groups · UV Moderate
115
Fri
💨
Unhealthy for Sensitive Groups · UV High
128
Sat
💨
Moderate · UV Moderate
71