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Episodic Levels of PM10, PM2.5 and PM1 during Diwali: A study in urban area of Delhi, India

Author Affiliations

  • 1University School of Environment Management, Guru Gobind Singh Indraprastha University, Sec-16C, Dwarka, New Delhi 110078, India
  • 2University School of Environment Management, Guru Gobind Singh Indraprastha University, Sec-16C, Dwarka, New Delhi 110078, India

Int. Res. J. Environment Sci., Volume 7, Issue (3), Pages 25-30, March,22 (2018)


Diwali festival is celebrated every year during the time of October-November all across India. During the festival days, firecrackers are burnt in large amount and results in high emission of air pollutants. This year the Supreme Court of India has banned over the selling of crackers during Diwali month in Delhi. Shahdara, an urban area, Delhi has been selected for observing the effect of pollution after banning of the crackers. The monitoring of particulate matter for peak hours has been done six days before, six days after and on Diwali days by using aerosol spectrometer (Grimm 1.108). The Pre-Diwali levels of PM10, PM2.5 and PM1 has been ranged as 614-1307, 246-375 and 195-266g/m3 respectively while the Post-Diwali levels of PM10, PM2.5 and PM1 has been ranged from 861-1101, 295-453 and 211-364g/m3 respectively. The levels of PM10, PM2.5 and PM1 on Diwali has been found to be 1484, 580 and 447g/m3 respectively. Despite cracker ban, the presence of such higher concentration of particulate matter in ambient air during Diwali needs immediate actions for better implementation of policies to ensure healthier public health.


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