ANALYSIS OF AIR-BORNE POLLUTANTS DURING SECOND WAVE OF COVID-19 PANDEMIC OVER MAJOR CITIES OF INDIA

ADARSH KUMAR *

Department of Physics, Amity Institute of Applied Sciences, Amity University, Uttar Pradesh, Sector 125, Noida–201 303, India.

*Author to whom correspondence should be addressed.


Abstract

In this paper, we analyzed air-borne pollutants like PM2.5, PM10, NO2, SO2, CO and Ozone obtained from twelve air-quality monitoring stations operated by various central and state-pollution control agencies in different parts of India during second wave (March to May’ 2021) of Covid-19 pandemic.  Our results show positive correlations between Covid-19 cases and PM2.5/10 over Delhi (+0.049) and Lucknow (+0.097) of Northern India. Lowest PM2.5 concentrations was observed over Chennai (~19), which was due to lockdown restrictions imposed by Tamilnadu state government. Pearson coefficients of PM2.5, PM10 and NO2 were observed to be negative for all the three chosen major cities of Southern India, and thereby, indicating that corona pandemic was not affected by air-borne particulates over Southern India. The average PM10 density of Eastern India was estimated to be maximum at Varanasi (~161) and lowest at Kolkatta (~85), however Pearson coefficient, P was fond to be negative for Kolkatta (-0.72). Further, over Western India, pearson coefficients of PM2.5, PM10, NO2, SO2 and CO were estimated to be negative for all the three chosen major cities. Ozone was found to have its positive trends at Ahmedabad (+0.32) and negative trends for both Jaipur (-0.044) and Mumbai (-0.017). Student t-test was also applied to test the significance between two independent data sets.

Keywords: Covid-19, PM, ozone, pearson’s coefficient, t-test


How to Cite

KUMAR, A. (2022). ANALYSIS OF AIR-BORNE POLLUTANTS DURING SECOND WAVE OF COVID-19 PANDEMIC OVER MAJOR CITIES OF INDIA. Journal of Applied Physical Science International, 14(1), 38–58. https://doi.org/10.56557/japsi/2022/v14i17928

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References

Chauhan A, Singh RP. Decline in PM2.5 concentrations over major cities around the world associated with COVID-19. Environ. Res. 2020;187:109634.

Gautam S. The influence of COVID-19 on air quality in India: a boon or inutile. Bull. Environ. Contam. Toxicol. 2020;104:724–726.

Ghosh S, Ghosh S. Air quality during COVID-19 lockdown: Blessing in disguise. Indian J. Biochem. Biophys. 2020;57(4):420–430.

Giani P, Castruccio S, Anav A, Howard D, Hu W, Crippa P. Short-term and long-term health impacts of air pollution reductions from COVID-19 lockdowns in China and Europe: a modeling study. Lancet Planet. Health. 2020;4(10):e474–e482.

Kumar A. Spatio-temporal variations in satellite based aerosol optical depths & aerosol index over Indian subcontinent: Impact of urbanization and climate change. Urban Climate. 2020;32:100598

Kumari P, Toshniwal D. Impact of lockdown measures during COVID-19 on-air quality-a case study of India. Int. J. Environ. Health Res; 2020.

DOI:https://doi.org/10.1080/ 09603123.2020.1778646.

Li L, Zhao Z, Wang H, Wang Y, Liu N, Li X, Ma Y. Concentrations of four major air pollutants among ecological functional zones in Shenyang, Northeast China. Atmosphere. 2020; 11(10):1070.

Mahato S, Pal S, Ghosh KG. Effect of lockdown amid COVID-19 pandemic on air quality of the megacity Delhi, India. Sci. Total Environ. 2020;730:139086.

Mitra A, Chaudhuri TR, Mitra A, Pramanick P, Zaman S. Impact of COVID19 related shutdown on atmospheric carbon dioxide level in the city of Kolkata. Parana J. Sci. Educ. 2020;6(3):84–92.

Sharma S, Zhang M, Gao J, Zhang H, Kota SH. Effect of restricted emissions during COVID-19 on air quality in India. Sci. Total Environ. 2020;728:138878.

Singh RP, Chauhan A. Impact of lockdown on air quality in India during COVID-19 pandemic. Air Qual. Atmos. Health. 2020;13:921–928.

Srivastava S, Kumar A, Bauddh K, Gautam AS, Kumar S. 21-day lockdown in India dramatically reduced air pollution indices in Lucknow and New Delhi, India. Bull. Environ. Contam. Toxicol. 2020; 105 (1):9–17.

Wu X, Nethery RC, Sabath BM, Braun D, Dominici F. Exposure to air pollution and COVID-19 mortality in the United States. MedRxiv; 2020b.

DOI:https://doi.org/10.1101/2020.04.05.20054502

Xie J, Zhu Y. Association between ambient temperature and COVID-19 infection in 122 cities from China. Sci. Total Environ. 2020; 724:138201.

Zheng YY, Ma YT, Zhang JY, Xie X. COVID-19 and the cardiovascular system. Nat. Rev. Cardiol. 2020;17:259–260.

Kolluru SSR, Patra AK, Nazneen S, Shiva Nagendra M. Association of air pollution and meteorological variables with COVID-19 incidence: Evidence from five megacities in India, Environmental Research. April 2021;195:110854.

Sathe Y, Gupta P, Bawase M, Lamsal L, Patadia F, Thipse S, Surface and satellite observations of air pollution in India during COVID-19 lockdown: Implication to air quality, Sustainable Cities and Society. March 2021;66:102688,.

Das N, Sutradhar S, Ghosh R, Mondal P. Asymmetric nexus between air quality index and nationwide lockdown for COVID-19 pandemic in a part of Kolkata metropolitan, India, Urban Climate. March 2021;36: 100789.

Singh V, Singh S, Biswal A, Kesarkar AP, Mor S, Khaiwal R. Diurnal and temporal changes in air pollution during COVID-19 strict lockdown over different regions of India. November 2020;266:Part 3: 115368.

Laxmipriya S, Narayanan RM. COVID-19 and its relationship to particulate matter pollution – Case study from part of greater Chennai, India, Materials Today Proceedings. 2021;43:Part 2:1634-39.

Gurjar BR, Ravindra K, Nagpure AS. Air pollution trends over Indian megacities and their local-to-global implications. Atmos. Environ. 2016;142:475–495.

Balakrishnan K, Dey S, Gupta T, Dhaliwal RS, Brauer M, Cohen AJ, et al. The impact of air pollution on deaths, disease burden, and life expectancy across the states of India: the global burden of disease study 2017. Lancet Planet. Health. 2019;3(1):e26–e39.

Mandal J, Samanta S, Chanda A, Halder S. Effects of COVID-19 pandemic on the air quality of three megacities in India. Atmos. Res. 2021;259:105659, 2021.

Kumar A. Significant characteristics of aerosol optical depth and cloud cover fraction over the South West region of India, Indian Journal of Physics; April 2021.

Das M, Das A, Sarkar R, Saha S, Mandal P. Regional scenario of air pollution in lockdown due to COVID-19 pandemic: Evidence from major urban agglomerations of India. Urban Climate. May 2021;37:100821.

Kumar P, Hama S, Omidvarborna H, Sharma A, Sahani J, Abhijith KV, Debele SE, Zavala R, Juan C, Barwise Y, Tiwari A. Temporary reduction in fine particulate matter due to ‘anthropogenic emissions switch-off during COVID-19 lockdown in Indian cities. Sustain. Cities Soc. 2020;62:102382.

Kumar A, Saxena D, Yadav R. Measurements of atmospheric aerosol concentration of various sizes during monsoon season at Roorkee, India, Atmos. Sc. Lett. 2011;12 (4):345-350.

Pant P, Baker SJ, Goel R, Guttikunda S, Goel A, Shukla A, Harrison RM. Analysis of size-segregated winter season aerosol data from New Delhi, India. Atmospheric Pollution Research. 2016;7(1):100-109.