Simulation on different response characteristics of aerosol particle number concentration and mass concentration to emission changes over mainland China

Xueshun Chen, Zifa Wang, Jie Li, Wenyi Yang, Huansheng Chen, Zhe Wang, Jianqi Hao, Baozhu Ge, Dawei Wang, Huili Huang

研究成果: ジャーナルへの寄稿記事

4 引用 (Scopus)

抄録

In this study, Nested Air Quality Prediction Modeling System with Advance Particle Microphysics module (NAQPMS+APM) is applied to simulate the response characteristics of aerosol particle number concentration and mass concentration to emission changes over mainland China. It is the first attempt to investigate the response of both aerosol mass concentration and number concentration to emission changes using a chemical transport model with detailed aerosol microphysics over mainland China. Results indicate that the response characteristics are obviously different between aerosol particle number concentration and mass concentration. Generally, the response of number concentration shows a more heterogeneous spatial distribution than that of mass concentration. Furthermore, number concentration has a higher sensitivity not only to primary particles emission but also to precursor gases than that of mass concentration. Aerosol particle mass concentration exhibits a consistent trend with the emission change and yet aerosol number concentration does not. Due to the nonlinearity of aerosol microphysical processes, reduction of primary particles emission does not necessarily lead to an obvious decrease of aerosol number concentration and it even increases the aerosol number concentration. Over Central-Eastern China (CEC), the most polluted regions in China, reducing primary particles emission rather than precursor gas emissions is more effective in reducing particles number concentration. By contrast, the opposite is true over the northwestern China. The features of fine particles pollution revealed in this study are associated with the spatial differences in China's population, geography, climate and economy. Considering the more adverse effects of ultrafine particles on human health and the spatial distribution of population, making different measures in controlling particles number concentration from that controlling mass concentration in different regions over mainland China is indicated. Main findings: FPN concentration responds more heterogeneously to emission than FPM. Spatial difference of response of FPN to emission is distinguished by a boundary line.

元の言語英語
ページ(範囲)692-703
ページ数12
ジャーナルScience of the Total Environment
643
DOI
出版物ステータス出版済み - 12 1 2018

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Aerosols
Particles (particulate matter)
aerosol
simulation
Spatial distribution
spatial distribution
boundary line
particle
Gas emissions
Air quality
gas
nonlinearity
air quality
Pollution
Gases
Health
pollution
climate
prediction

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution

これを引用

Simulation on different response characteristics of aerosol particle number concentration and mass concentration to emission changes over mainland China. / Chen, Xueshun; Wang, Zifa; Li, Jie; Yang, Wenyi; Chen, Huansheng; Wang, Zhe; Hao, Jianqi; Ge, Baozhu; Wang, Dawei; Huang, Huili.

:: Science of the Total Environment, 巻 643, 01.12.2018, p. 692-703.

研究成果: ジャーナルへの寄稿記事

Chen, Xueshun ; Wang, Zifa ; Li, Jie ; Yang, Wenyi ; Chen, Huansheng ; Wang, Zhe ; Hao, Jianqi ; Ge, Baozhu ; Wang, Dawei ; Huang, Huili. / Simulation on different response characteristics of aerosol particle number concentration and mass concentration to emission changes over mainland China. :: Science of the Total Environment. 2018 ; 巻 643. pp. 692-703.
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AU - Yang, Wenyi

AU - Chen, Huansheng

AU - Wang, Zhe

AU - Hao, Jianqi

AU - Ge, Baozhu

AU - Wang, Dawei

AU - Huang, Huili

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