Regional

• Central Pollution Control Board (CPCB) Ministry of Environment & Forests (Govt. of India )
  Address: Parivesh Bhawan, CBD-cum-Office Complex East Arjun Nagar,DELHI - 110 032, INDIA
  Link: http://cpcb.nic.in
• Maharashtra Pollution Control Board (MPCB) Environment Department of Government of Maharashtra
  Address: Kalpataru Point, 3rd and 4th floor, Opp. Cine Planet,Sion Circle, Mumbai-400 022
  Link: http://mpcb.gov.in
• National Environmental Engineering Research Institute (NEERI)
  Address: Nehru Marg, Nagpur, 440020, India
  Link: http://www.neeri.res.in
• Physical Research Laboratory (PRL)
  Address: Navrangpura, Ahmedabad - 380 009, INDIA
  Link: http://www.prl.res.in
• National Physical Laboratory (NPL)
  Address: Dr KS Krishnan Marg, South Patel Nagar, Pusa, New Delhi, Delhi 110012, INDIA
  Link: http://www.nplindia.org

International

• United States Environmental Protection Agency (USEPA)
  Address: Environmental Protection Agency 1200 Pennsylvania Avenue, N.W. Washington, DC 20460
  Link: http://www.epa.gov
• World Health Organization (WHO)
  Address: World Health Organization, Avenue Appia 20 1211 Geneva 27, Switzerland
  Link: http://www.who.int
• Intergovernmental Panel on Climate Change (IPCC),
  Address: C/O World Meteorological Organization, 7bis Avenue de la Paix, C.P. 2300, CH- 1211 Geneva 2, Switzerland
  Link: http://www.ipcc.ch
• National Center for Atmospheric Research (NCAR)
  Address: P.O. Box 3000, Boulder, CO 80307-3000
  Link: https://ncar.ucar.edu
• World Meteorological Organization (WMO)
  Address:7bis, avenue de la Paix, Case postale No. 2300, CH-1211 Geneva 2, Switzerland
  Link: https://www.wmo.int