Articles | Volume 22, issue 12
https://doi.org/10.5194/acp-22-8369-2022
https://doi.org/10.5194/acp-22-8369-2022
Measurement report
 | 
29 Jun 2022
Measurement report |  | 29 Jun 2022

Measurement report: The importance of biomass burning in light extinction and direct radiative effect of urban aerosol during the COVID-19 lockdown in Xi'an, China

Jie Tian, Qiyuan Wang, Huikun Liu, Yongyong Ma, Suixin Liu, Yong Zhang, Weikang Ran, Yongming Han, and Junji Cao

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Cited articles

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We investigated aerosol optical properties and the direct radiative effect (DRE) at an urban site in China before and during the COVID-19 lockdown. The total light extinction coefficient (bext) decreased under emission control measures; however, bext from biomass burning increased due to the undiminished need for residential cooking and heating. Biomass burning, rather than traffic-related emissions, became the largest positive effect contributor to aerosol DRE in the lockdown.
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