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  5. Round Rock

Round Rock

Williamson County, Texas

2026-04-21 06:00
CAQI (Europe)
Low
Pollutants
O3
μg/m³
66.4
PM2.5
μg/m³
9
PM10
μg/m³
14
Weather
  • ℃
  • ℉
14℃
88%
7 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • CAQI (Europe)
  • O3
  • PM2.5
  • PM10
Places included
CAPCOG Round Rock Brushy Creek W C1620
AQI 28
Data Sources
http://www.airnow.gov/

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