Two major sources of PM10 are wind-blown dust and vehicles: study

Mumbai: According to a recent study published in an international journal, the main pollutants causing the toxic Particulate Matter 10 (PM10) concentration in Mumbai’s air were vehicular emissions, wind-blown road dust, industrial emissions, burning of municipal solid waste, and construction activities.
The slow-moving, dense road network that borders industrial zones causes a higher pollution load to be more noticeable along major roads and national highways, according to the report.

It also said that the suburbs in the upper west and extreme east are found to have the lowest emissions.
Two major sources of PM10 are wind-blown dust and vehicles.
According to the research, the Deonar dumping yard has the greatest emissions caused by burning solid waste. According to the report, slums and the burning of municipal solid trash contribute similarly to other hotspot zones like Borivli (West) and Mulund (East).

There are areas with higher vehicle emissions around R L Kelkar Road, Nehru Road, Ramakrishna Chemburkar Marg, Amar Mahal Junction, Goregaon Bridge, and P L Lokhandey Marg.
According to the report, Bandra-Kurla Road, R L Kelkar Road, J K Karmalkar Marg, R B Mehta Marg, 60 Feet Road, Nehru Road, L S Chauhan Marg, Vikhroli Road, and NSC Bose Road have the highest transportation-related PM10 emissions.
According to the article, 35 percent of Mumbai’s cars are older than 15 years. Furthermore, it said that automobiles account for 49% of all PM10 emissions.

Mumbai has more registered automobiles than ever before—3.8 million as of March 2020, as reported by the state motor vehicles department, up from 1 million in 2000. Despite having the strongest public transportation system in the nation, 34% of the city’s vehicles are automobiles and 54% are two-wheelers.
Mahanagar Gas Ltd reported a 9% rise in CNG cars in the city between 2019 and 2020, despite the restricted usage of cleaner fuel.
Scientists Saroj Kumar Sahu, Gufran Beig, and Poonam Mangaraj wrote a study titled “Development of emission inventory for air quality assessment and mitigation strategies over most populous Indian megacity, Mumbai.”