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<p>An Extensive Assessment of Ambient Air Quality In City Delhi: Air Quality Monitoring, Source Apportionment And Analysis</p><br />

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Title Statement <p>An Extensive Assessment of Ambient Air Quality In City Delhi: Air Quality Monitoring, Source Apportionment And Analysis</p><br />
 
Added Entry - Uncontrolled Name Kumar, Deo Nandan; Deshbandhu College (University of Delhi) Kalkaji, New Delhi 110019 India
Priyanka, Kumari ; Department of Mathematics Shivaji Collrge (University of Delhi) New Delhi 110027 India
 
Uncontrolled Index Term Air Pollution; Correlation Analysis; Principal Component Analysis; Meteorological Parameters
 
Summary, etc. <p>The Analysis of air quality data for three consecutive years 2018, 2019 and 2020 showed that there was a significant reduction in the concentration of almost all pollutants in year 2020 except for ozone and benzene. In 2020 the decrease in concentration may be observed due to various restrictions imposed during lockdown called due to COVID 19 pandemic. A relative reduction of 35.38% in PM<sub>10</sub>, 38.79% in PM<sub>2.5</sub>, 23.90% in NO<sub>2</sub>, 8.22% in SO<sub>2</sub> , 17.64% in CO, 22.36% in NO and 9.98% in NH<sub>3</sub> have been observed in 2020 when compared to 2019. Correlation and p-value analysis indicates that there is significant correlation between some of the pollutant pairs but the same pattern is not retained over time. The Principal component analysis (PCA) reflects that only first four principal components are significant, which identifies the pollution caused due to vehicles as primary and major source of air pollution in Delhi. Regional atmospheric transfer of pollutants from nearby areas from burning of agricultural waste, coal etc. were found to be the secondary major source of air pollution in Delhi. The objective of the present work is to analyze the distribution of eleven major pollutants namely particulate matters (PM<sub>10</sub> and PM<sub>2.5</sub>), nitrogen dioxide (NO<sub>2</sub>), sulphur dioxide (SO<sub>2</sub>), ozone (O<sub>3</sub>), nitric oxide (NO), oxides of nitrogen (NOx), ammonia (NH<sub>3</sub>), carbon monoxide (CO), benzene (C<sub>6</sub>H<sub>6</sub>), toluene along with meteorological parameters, air temperature (AT), wind speed (WS), wind direction (WD), barometric pressure (BP), solar radiation (SR) and relative humidity (RH) in the mega city Delhi for the three consecutive years 2018, 2019 and 2020.</p>
 
Publication, Distribution, Etc. Journal of Indian Association for Environmental Management (JIAEM)
2021-04-28 17:29:30
 
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http://op.niscair.res.in/index.php/JIAEM/article/view/45541
 
Data Source Entry Journal of Indian Association for Environmental Management (JIAEM); ##issue.vol## 41, ##issue.no## 1 (2021): Journal of Indian Association for Environmental Management (JIAEM)
 
Language Note en
 
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