Environmentally persistent free radicals in PM_2.5 from a typical Chinese industrial city during COVID-19 lockdown: The unexpected contamination level variation.

ABSTRACT: The outbreak of COVID-19 has caused concerns globally. To reduce the rapid transmission of the virus, strict city lockdown measures were conducted in different regions. China is the country that takes the earliest home-based quarantine for people. Although normal industrial and social activities were suspended, the spread of virus was efficiently controlled. Simultaneously, another merit of the city lockdown measure was noticed, which is the improvement of the air quality. Contamination levels of multiple atmospheric pollutants were decreased. However, in this work, 24 and 14 air fine particulate matter (PM_2.5) samples were continuously collected before and during COVID-19 city lockdown in Linfen (a typical heavy industrial city in China), and intriguingly, the unreduced concent

SUBMITTER: Wang L 

PROVIDER: S-EPMC9418963 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature