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Increased contribution of biomass burning to haze events in Shanghai since China's clean air actions

Environmental Studies and Forestry

Increased contribution of biomass burning to haze events in Shanghai since China's clean air actions

W. Fang, N. Evangeliou, et al.

This study unveils the intriguing sources and geographical roots of black carbon aerosols in Shanghai, China, revealing a crucial shift in pollution dynamics over four years. Despite cleaner summer months dominated by fossil fuels, winter's haze packs a punch from biomass burning linked to residential emissions. Conducted by esteemed researchers Wenzheng Fang, Nikolaos Evangeliou, Sabine Eckhardt, Ju Xing, Hailong Zhang, Hang Xiao, Meixun Zhao, and Sang-Woo Kim, this research calls for significant reductions in regional residential emissions to combat climate impact.

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Playback language: English
Abstract
This study investigates the sources and geographical origins of black carbon (BC) aerosols in Shanghai, China, after the implementation of clean air actions from 2013-2017. By combining dual-isotope-constrained observations and chemical-transport modeling, the researchers found that while fossil sources dominate BC in cleaner summer months, biomass burning significantly contributes to wintertime BC pollution, primarily due to residential emissions. This highlights the need for substantial reductions in regional residential emissions to address haze and mitigate climate impact.
Publisher
Communications Earth & Environment
Published On
Sep 05, 2023
Authors
Wenzheng Fang, Nikolaos Evangeliou, Sabine Eckhardt, Ju Xing, Hailong Zhang, Hang Xiao, Meixun Zhao, Sang-Woo Kim
Tags
black carbon
Shanghai
air pollution
biomass burning
residential emissions
haze
climate impact
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