Abstract

Changes in the atmospheric composition during different periods of 2020 in Moscow which were associated with the COVID-19 pandemic preventing measures as well as corresponding pollutant emission reduction, are investigated. Surface concentrations of nitrogen dioxide (NO₂), carbon monoxide (CO), ozone (O₃), aerosol fraction (PM₁₀), and meteorological parameters during different periods of 2020 were compared with similar data for the previous five years. The analysis of ground-based measurements, as well as of high-resolution satellite distributions of CO and NO₂ indicated that the concentration of major pollutants and its spatial distribution in the Moscow region were significantly affected by both restrictive measures and abnormal meteorological conditions in 2020.

中文翻译：

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COVID-19 大流行预防措施和气象条件对 2020 年莫斯科大气成分的影响

摘要

调查了莫斯科 2020 年不同时期的大气成分变化，这些变化与 COVID-19 大流行预防措施以及相应的污染物减排措施有关。将2020年不同时期的二氧化氮（NO ₂）、一氧化碳（CO）、臭氧（O ₃）、气溶胶组分（PM ₁₀）和气象参数与前五年的类似数据进行了比较。地面测量分析以及高分辨率卫星 CO 和 NO _{2分布的分析} 表明2020年莫斯科地区主要污染物浓度及其空间分布受到限制措施和异常气象条件的显着影响。