Asian Aerosols: Current and Year 2030 Distributions and Implications to Human Health and Regional Climate Change

被引：121

作者：

Carmichael, Gregory R. ^{[1
]}

Adhikary, Bhupesh ^{[1
]}

Kulkarni, Sarika ^{[1
]}

D'Allura, Alessio ^{[1
]}

Tang, Youhua ^{[1
]}

Streets, David ^{[2
]}

Zhang, Qiang

Bond, Tami C. ^{[3
]}

Ramanathan, Veerabhadran ^{[4
]}

Jamroensan, Aditsuda ^{[1
]}

Marrapu, Pallavi ^{[1
]}

机构：

[1] Univ Iowa, Ctr Global & Reg Environm Res, Iowa City, IA 52242 USA

[2] Argonne Natl Lab, Decis & Informat Sci Div, Argonne, IL 60439 USA

[3] Univ Illinois, Dept Civil & Environm Engn, Urbana, IL 61801 USA

[4] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 2009年 / 43卷 / 15期

关键词：

EMISSIONS; ASSIMILATION; RETRIEVALS; MODEL;

D O I：

10.1021/es8036803

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Aerosol distributions in Asia calculated over a 4-year period and constrained by satellite observations of aerosol optical depth (AOD) are presented. Vast regions in Asia that include >80% of the population have PM2.5 concentrations that exceed on an annual basis the WHO guideline of 10 mu g/m(3), often by factors of 2 to 4. These high aerosol loadings also have important radiative effects, causing a significant dimming at the surface, and mask similar to 45% of the warming by greenhouse gases. Black carbon (BC) concentrations are high throughout Asia, representing 5-10% of the total AOD, and contributing significantly to atmospheric warming (its warming potential is similar to 55% of that due to CO2). PM levels and AODs in year 2030, estimated based on simulations that consider future changes in emissions, are used to explore opportunities for win-win strategies built upon addressing air quality and climate change together. It is found that in 2030 the PM2.5 levels in significant parts of Asia will increase and exacerbate health impacts; but the aerosols will have a larger masking effect on radiative forcing, due to a decrease in BC and an increase in SO2 emissions.

引用

页码：5811 / 5817

页数：7

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