Air Quality Over Major Cities of Saudi Arabia During Hajj Periods of 2019 and 2020.
Earth Syst Environ. 2021;5(1):101-114. doi: 10.1007/s41748-021-00202-z. Epub 2021 Feb 2.
Earth Syst Environ. 2021.
PMID: 34723078
Free PMC article.