Patna, the state capital of Bihar, is among the five most polluted cities in the world (WHO, 2016). It was identified as one of the 122 non-attainment cities in the National Clean Air Programme (NCAP). In this context, the Patna Clean Air Action Plan identified source-specific control measures (CMs) and performed a technoeconomic assessment (TEA) on the CMs. This helped identify technically and economically feasible solutions and technologies to reduce pollution levels in Patna. An emission inventory was also developed for the city of Patna to estimate the total emission load from various polluting sources of the city to estimate the total emission load from various polluting sources of the city.
Patna is the first city in the country to launch a comprehensive plan based on a scientific methodology adopted by the research groups.