Abstract
India, observes Diwali as the celebration of lights, which fully brightens the nation with its splendor and amazes all with its happiness. However, the burning of firecrackers on this day leads to contamination of air causing adverse effects on human health. To study this impact, an air quality study was carried out in northeast India and chemical characteristics of PM10 were studied. The mean PM10 concentration during Diwali period was 311 µg/m3, an increase of 81% from other days, exceeding National Ambient Air Quality Standard (NAAQS) by 3.1 times. Source apportionment using the US EPA’s positive matrix factorization model indicated that fireworks burning are the chief contributor to Sr, Cl−, and Fe. A health study conducted during the analysis period revealed an increase in hospital admissions in the campus due to respiratory-related diseases. This indicates the importance of regulated and monitored burning of fireworks in regions with high population density.
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