干旱区生态环境知识资源中心(Arid): A Comparative Study of Particulate Matter Between New Delhi, India and Riyadh, Saudi Arabia During the COVID-19 Lockdown Period

Arid

DOI	10.3389/fenvs.2021.784959
	A Comparative Study of Particulate Matter Between New Delhi, India and Riyadh, Saudi Arabia During the COVID-19 Lockdown Period
	Singh, Bhupendra Pratap; Eldesoky, Gaber E.; Kumar, Pramod; Chandra, Prakash; Islam, Md Ataul; Rahman, Shakilur
通讯作者	Singh, BP (corresponding author)，Univ Delhi, Deshbandhu Coll, Dept Environm Studies, New Delhi, India.
来源期刊	FRONTIERS IN ENVIRONMENTAL SCIENCE
EISSN	2296-665X
出版年	2022
卷号	9
英文摘要	Novel Coronavirus disease (COVID-19), after being identified in late December 2019 in Wuhan city of China, spread very fast and has affected all the countries in the world. The impact of lockdowns on particulate matter during the lockdown period needs attention to explore the correlation between anthropogenic and natural emissions. The current study has demonstrated the changes in fine particulate matter PM2.5, PM10 and their effect on air quality during the lockdown. The air quality before the lockdown was low in New Delhi (India) and Riyadh (Saudi Arabia), among major cities worldwide. The air quality of India is influenced by dust and sand from the desert and surrounding areas. Thus, the current study becomes important to analyse changes in the air quality of the Indian sub-continent as impacted by dust storms from long distances. The result indicated a significant reduction of PM2.5 and PM10 from 93.24 to 37.89 mu g/m(3) and from 176.55 to 98.87 mu g/m(3) during the lockdown period as compared to pre lockdown period, respectively. The study shows that average concentrations of PM10 and PM2.5 have declined by -44% and -59% during the lockdown period in Delhi. The average value of median PM10 was calculated at 33.71 mu g/m(3) for Riyadh, which was lower than that value for New Delhi during the same period. The values of PM10 were different for pre and during the lockdown periods in Riyadh, indicating the considerable influence on air quality, especially the concentration of PM10, from both the natural (sand and dust storms) and the anthropogenic sources during the lockdown periods. However, relatively smaller gains in the improvement of air quality in Riyadh were correlated to the imposition of milder lockdown and the predominance of natural factors over the anthropogenic factors there. The Air Quality Index (AQI) data for Delhi showed the air quality to be 'satisfactory' and in the green category during the lockdown period. This study attempts to better understand the impact of particulate matter on the short- and long-term air quality in Delhi during the lockdown. This study has the scope of being scaled up nationwide, and this might be helpful in formulation air pollution reduction and sustainable management policies in the future.
英文关键词	COVID-19 air quality particulate matter New Delhi Riyadh
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000748153600001
WOS关键词	HEALTH-RISK ASSESSMENT ; AEROSOL OPTICAL DEPTH ; DUST STORM ACTIVITY ; AIR-QUALITY ; IMPACT ; PRECIPITATION ; CORONAVIRUS ; EMISSION ; REGION ; TREND
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376559
作者单位	[Singh, Bhupendra Pratap] Univ Delhi, Deshbandhu Coll, Dept Environm Studies, New Delhi, India; [Eldesoky, Gaber E.] King Saud Univ, Coll Sci, Chem Dept, Riyadh, Saudi Arabia; [Kumar, Pramod] Univ Delhi, Sri Aurobindo Coll, Dept Chem, New Delhi, India; [Chandra, Prakash] Delhi Technol Univ, Dept Biotechnol, New Delhi, India; [Islam, Md Ataul] Univ Manchester, Fac Biol Med & Hlth, Sch Hlth Sci, Div Pharm & Optometry, Manchester, Lancs, England; [Rahman, Shakilur] Jamia Hamdard, Dept Med Elementol & Toxicol, Sch Chem & Life Sci, New Delhi, India
推荐引用方式 GB/T 7714	Singh, Bhupendra Pratap,Eldesoky, Gaber E.,Kumar, Pramod,et al. A Comparative Study of Particulate Matter Between New Delhi, India and Riyadh, Saudi Arabia During the COVID-19 Lockdown Period[J],2022,9.
APA	Singh, Bhupendra Pratap,Eldesoky, Gaber E.,Kumar, Pramod,Chandra, Prakash,Islam, Md Ataul,&Rahman, Shakilur.(2022).A Comparative Study of Particulate Matter Between New Delhi, India and Riyadh, Saudi Arabia During the COVID-19 Lockdown Period.FRONTIERS IN ENVIRONMENTAL SCIENCE,9.
MLA	Singh, Bhupendra Pratap,et al."A Comparative Study of Particulate Matter Between New Delhi, India and Riyadh, Saudi Arabia During the COVID-19 Lockdown Period".FRONTIERS IN ENVIRONMENTAL SCIENCE 9(2022).