气溶胶
环境科学
硫酸盐
薄雾
空气污染
大气科学
2019年冠状病毒病(COVID-19)
微粒
污染
环境化学
空气质量指数
作者
Foued Chabane,Ali Arif
标识
DOI:10.1016/j.glohj.2021.02.010
摘要
Abstract Background To study, estimate and discuss the variations of the aerosol optical depth (AOD), black carbon, sulfate and organic matter, in the atmosphere in Blida City of Algeria, which was greatly affected by COVID-19 pandemic. Methods We analyzed the effects of changes in the total AOD, black carbon, sulfate, and organic matter in the atmosphere (λ = 550 nm) in the same period of 2019 and 2020, following the COVID-19 epidemic in Blida City, which was the most-affected city in Algeria. Results The quarantine that was enacted to limit the spread of COVID-19 resulted in side effects that were identifiable in the total AOD and in some of its atmospheric components. Comparing these variables in 2019 and 2020 (in the months during the quarantine) revealed that in April, the BCAOD values were much lower in 2020 than in 2019. Conclusion Based on the effects of the emerging COVID-19, the research listed the changes received from the AOD, and is considered as a comparative study and represents a significant side effect of the quarantine that was mainly designed to limit COVID-19.
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