Standards

CPCB has notified New National ambient air quality standards (norms) in 2009.

* 1-Hourly , ** 8-Hourly

CPCB

Norms will be same for residential and industrial areas

Srilankan ambient air quality standards

China ambient air quality standards

Source : http://www.unep.org/sport_env/documents/beijingreport07/chapter5.pdf

WHO AQ guidelines

Ambient air quality standards for various asian countries

Newyork and US ambient AQ standards

New York State and Federal Standards