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pro vyhledávání: '"Hiren T. Jethva"'
Autor:
Sarath K. Guttikunda, Sai Krishna Dammalapati, Gautam Pradhan, Bhargav Krishna, Hiren T. Jethva, Puja Jawahar
Publikováno v:
Sustainability. 15:4209
Delhi’s annual average PM2.5 concentration in 2021–22 was 100 μg/m3—20 times more than the WHO guideline of 5 μg/m3. This is an improvement compared to the limited information available for the pre-CNG-conversion era (~30%), immediately befor