Singh, A. ., Deep, A. ., Pandey, C. and Nandan, H. . (2023) “Comparative study of gaseous pollutants for major cities in foothills of Garhwal Himalaya of Uttarakhand”, MAUSAM, 74(1), pp. 57–72. doi: 10.54302/mausam.v74i1.1013.