Spatio-Temporal Variation of Particulate Matter (Pm10 and Pm2.5) Over Ahmedabad

With the increase in urbanization, air pollution has become a critical issue, so a broad understanding of its spatiotemporal characteristics is important to develop policies. This study analyzes the variation of PM
10
and PM
2.5
at different micro-sub-zones of Ahmedabad city for the duration of seven months (September 2020 - March 2021). The average concentration observed over rural, industrial, traffic and mix regions for PM
10
is 123.9, 188.1, 184.9 and 109.3 µg/m³ while for PM
2.5
it is 50.1, 82.5, 57.4 and 56 µg/m³ respectively. The data analysis indicates that the areas with high PM concentration are the industrial and traffic regions of Ahmedabad while lower values of PM concentration are obtained in the rural area for PM
2.5
and mix regions for PM
10
. The observed data shows that the value crosses the National Ambient Air Quality Standards (NAAQS). The ratio analysis shows that the mass concentration of PM in Ahmedabad city is mainly contributed by coarser particles.