Air quality in Round Rock
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
18.6 µg/m³
WHO guideline 15
PM10
20.7 µg/m³
WHO guideline 45
Hour by hour (12h) US EPA AQI
9:00 AM
💨
PM2.5 18.6 µg/m³
65 Moderate
10:00 AM
💨
PM2.5 17.9 µg/m³
63 Moderate
11:00 AM
💨
PM2.5 17.8 µg/m³
63 Moderate
12:00 PM
💨
PM2.5 14.9 µg/m³
68 Moderate
1:00 PM
💨
PM2.5 11.6 µg/m³
75 Moderate
2:00 PM
💨
PM2.5 10.2 µg/m³
73 Moderate
3:00 PM
💨
PM2.5 9.4 µg/m³
66 Moderate
4:00 PM
💨
PM2.5 8.8 µg/m³
58 Moderate
5:00 PM
💨
PM2.5 8.6 µg/m³
48 Good
6:00 PM
💨
PM2.5 8.4 µg/m³
47 Good
7:00 PM
💨
PM2.5 8.6 µg/m³
44 Good
8:00 PM
💨
PM2.5 9 µg/m³
42 Good
Next few days daily max · US EPA AQI
Sat
💨
Moderate · UV High
75
Sun
💨
Moderate · UV Moderate
78
Mon
💨
Moderate · UV Moderate
83
Tue
💨
Moderate · UV Moderate
88
Wed
💨
Moderate · UV High
63
JavaScript is needed for the map — the city links below work without it.
Precip NEXRAD · NOAA Temp Wind Clouds Terrain