Ontology highlight
ABSTRACT:
SUBMITTER: Liu L
PROVIDER: S-EPMC7883225 | biostudies-literature | 2021 Jan
REPOSITORIES: biostudies-literature
Liu Lei L Zhang Jian J Du Rongguang R Teng Xiaomi X Hu Rui R Yuan Qi Q Tang Shanshan S Ren Chuanhua C Huang Xin X Xu Liang L Zhang Yinxiao Y Zhang Xiaoye X Song Congbo C Liu Bowen B Lu Gongda G Shi Zongbo Z Li Weijun W
Geophysical research letters 20210118 2
Air pollution in megacities represents one of the greatest environmental challenges. Our observed results show that the dramatic NO<sub>x</sub> decrease (77%) led to significant O<sub>3</sub> increases (a factor of 2) during the COVID-19 lockdown in megacity Hangzhou, China. Model simulations further demonstrate large increases of daytime OH and HO<sub>2</sub> radicals and nighttime NO<sub>3</sub> radical, which can promote the gas-phase reaction and nocturnal multiphase chemistry. Therefore, en ...[more]