Spatio-temporal analysis of air quality and its relationship with COVID-19 lockdown over Dublin

被引：4

作者：

Kumari, Sushma ^{[1
]}

Yadav, Avinash Chand ^{[2
]}

Saharia, Manabendra ^{[3
]}

Dev, Soumyabrata ^{[4
]}

机构：

[1] Cent Inst Min & Fuel Res, Dhanbad 826001, India

[2] Indian Inst Trop Meteorol, Pune 411008, India

[3] Indian Inst Technol, Dept Civil Engn, Delhi, India

[4] Univ Coll Dublin, Sch Comp Sci, Dublin, Ireland

来源：

REMOTE SENSING APPLICATIONS-SOCIETY AND ENVIRONMENT | 2022年 / 28卷

基金：

爱尔兰科学基金会;

关键词：

Air pollution; Sentinel-5P; MODIS; AQI; COVID-19; pandemic; Dublin; POLLUTION;

D O I：

10.1016/j.rsase.2022.100835

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Air pollution has become one of the biggest challenges for human and environmental health. Major pollutants such as Nitrogen Dioxide (NO2), Sulphur Dioxide (SO2), Ozone (O3), Carbon Monoxide (CO), and Particulate matter (PM10 and PM2.5) are being ejected in a large quantity every day. Initially, authorities did not implement the strictest mitigation policies due to pressures of balancing the economic needs of people and public safety. Still, after realizing the effect of the COVID-19 pandemic, countries around the world imposed a complete lockdown to contain the outbreak, which had the unexpected benefit of causing a drastic improvement in air quality. The present study investigates the air pollution scenarios over the Dublin city through satellites (Sentinel-5P and Moderate Resolution Imaging Spectroradiometer) and ground-based observations. An average of 28% reduction in average NO2 level and a 27.7% improvement in AQI (Air Quality Index) was experienced in 2020 compared to 2019 during the lockdown period (27 March-05 June). We found that PM10 and PM2.5 are the most dominating factor in the AQI over Dublin.

引用

页数：12