The state Pollution Control Board has yet to adopt new norms of ambient air quality standards notified by the Central Pollution Control Board (CPCB).
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/state-pollution-board-yet-adopt-new-norms
[2] http://admin.indiaenvironmentportal.org.in/category/author/ambika-sharma
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/tribune-new-delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/himachal-pradesh
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/central-pollution-control-board-cpcb
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-standards
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-quality-monitoring
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-quality
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/ministry-environment-and-forests-moef
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-act-1974
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-act-1981