Significant chlorine emissions from biomass burning affect the long-term atmospheric chemistry in Asia

被引：0

作者：

Di Chang ^{[1
]}

Qinyi Li ^{[2
,3
,4
]}

Zhe Wang ^{[5
]}

Jianing Dai ^{[3
,6
]}

Xiao Fu ^{[3
,7
]}

Jia Guo ^{[8
]}

Lei Zhu ^{[9
]}

Dongchuan Pu ^{[9
]}

Carlos ACuevas ^{[2
]}

Rafael PFernandez ^{[10
]}

Weigang Wang ^{[11
]}

Maofa Ge ^{[11
]}

Jimmy CHFung ^{[5
]}

Alexis KHLau ^{[5
]}

Claire Granier ^{[12
,13
]}

Guy Brasseur ^{[3
,6
,14
]}

Andrea Pozzer ^{[1
]}

Alfonso SaizLopez ^{[2
]}

Yu Song ^{[15
]}

Tao Wang ^{[3
]}

机构：

[1] Atmospheric Chemistry Department, Max Planck Institute for Chemistry

[2] Department of Atmospheric Chemistry and Climate, Institute of Physical Chemistry Blas Cabrera,CSIC

[3] Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University

[4] Environment Research Institute,Shandong University

[5] Division of Environment and Sustainability, The Hong Kong University of Science and Technology

[6] Environmental Modeling Group,Max Planck Institute for Meteorology

[7] Institute of Environment and Ecology, Tsinghua Shenzhen International Graduate School,Tsinghua University

[8] Environmental Central Facility,Institute for the Environment, The Hong Kong University of Science and Technology

[9] Atmospheric Chemistry Modeling& Remote Sensing Research Group,Southern University of Science and Technology

[10] Institute for Interdisciplinary Science (ICB),National Research Council (CONICET),FCEN-UNCuyo

[11] Institute of Chemistry, Chinese Academy of Sciences

[12] NOAA Chemical Sciences Laboratory/CIRES,University of Colorado

[13] Laboratoire d’Aerologie, CNRS,University of Toulouse UPS

[14] Atmospheric Chemistry Observation & Modeling Laboratory,National Center for Atmospheric Research

[15] State Key Joint Laboratory of Environmental Simulation and Pollution Control,Department of Environmental Science, Peking University

来源：

National Science Review | 2024年 / 11卷 / 09期

关键词：

D O I：

暂无

中图分类号：

S216 [生物能（生物质能）的应用];

学科分类号：

080702 ;

摘要：

Biomass burning（BB） is a major source of trace gases and particles in the atmosphere,influencing air quality,radiative balance,and climate.Previous studies have mainly focused on the BB emissions of carbon and nitrogen species with less attention on chlorine.Reactive chlorine chemistry has significant effects on atmospheric chemistry and air quality.However,quantitative information on chlorine emissions from BB,particularly the long-term trend and associated atmospheric impacts,is limited both on regional and global scales.Here,we report a long-term（20 01-2018） high-resolution BB emission inventory for the major chlorine-containing compounds（HCl,chloride,and CH3Cl） in Asia based on satellite observations.We estimate an average of 730 Gg yr-1 chlorine emitted from BB activity in Asia,with China contributing the largest share at 24.2%(177 Gg yr-1),followed by Myanmar at 18.7% and India at 18.3%.Distinct seasonal patterns and significant spatial and interannual variability are observe d,mainly driven by human-mediated changes in agricultural activity.By incorporating the newly developed chlorine emission inventory into a global chemistry-climate model（CAM-Chem）,we find that the BB-chlorine emissions lead to elevated levels of HCl and CH3Cl(monthly average up to 2062 and 1421 parts per trillion by volume（pptv）,respectively),subsequently resulting in noticeable changes in oxidants（up to 3.1% in O3 and 17% in OH radicals）.The results demonstrate that BB is not only a significant source of air pollutants but also of oxidants,suggesting a larger role of BB emissions in the atmospheric chemistry and oxidation process than previously appreciated.In light of the projected increase in BB activity toward the end of the century and the extensive control of anthropogenic emissions worldwide,the contribution of BB emissions may become fundamental to air quality composition in the future.

引用

页码：213 / 222

页数：10