Chennai
Alandur Bus Depot, Chennai - CPCB is an air quality monitoring station in Chennai, Tamil Nadu, India (12.9099°, 80.1077°). Hawanama shows its hourly fine particulate matter (PM2.5) concentration in µg/m³ and the matching US Air Quality Index, plus the last 24 hours. Each hourly value is the average of the hour that just ended. See all monitors and the city average on the Chennai air quality page. Data is open; see About for downloads, the API and how to cite it.