This latest CPCB report provides details of the monitoring study conducted to measure Ozone levels, VOCs including carbonyls in ambient air in the city of Kolkata. It also includes recommendations for control of VOCs releases. 

Volatile Organic Compounds or VOCs play an important role in tropospheric chemistry byaffecting the OH radical concentration, production of organic acids and photochemicaloxidants. In order to develop efficient air pollution abatement strategies, it is important toknow the sources and fate of VOCs, specially in the South-East Asian region where highlevel of solar irradiation favours photochemical ozone production.                                      Central Pollution Control Board (CPCB) has carried outa study through NEERI to measure the levels of Ozone, VOCs including carbonyls inambient air in the metropolitan city of Kolkata. The report presents findings of the study andrecommendations for actions to be taken including the strategy for mitigation of VOCs.