Large-scale distribution of elements in Chinese aerosol--颗粒学报PARTICUOLOGY

Guo, J., Rahn, K. A., Zhuang, G., & Wang, S. (2007). Large-scale distribution of elements in Chinese aerosol. China Particuology, 5(6), 395–400. https://doi.org/10.1016/j.cpart.2007.07.004

Large-scale distribution of elements in Chinese aerosol

Jinghua Guo ^a *, Kenneth A. Rahn ^b, Guoshun Zhuang ^c, Shuifeng Wang ^a

a Analysis and Testing Center, Beijing Normal University, Beijing 100875, China
b Center for Atmospheric Chemistry Studies, Graduate School of Oceanography, University of Rhode Island, Narragansett, RI 02882-1197, USA
c The Center for Atmospheric Chemistry Study, Department of Environmental Science & Engineering, Fudan University, Shanghai 200433, China

10.1016/j.cpart.2007.07.004

Volume 5, Issue 6, December 2007, Pages 395-400

Received 14 March 2007, Accepted 6 July 2007, Available online 19 November 2007.

E-mail: gjh@bnu.edu.cn

Highlights

Abstract

In spite of increasing attention on Chinese aerosol, there has never been a country-wide survey of its general characteristics. This paper presents elemental data for aerosol at 23 sites in and around China, mostly drawn from the literature, and shows some of the large-scale patterns. Al, Na, and Se are used to represent the crustal, marine, and pollution components, respectively. Most of the patterns are aligned in SW–NE. Al and Na are highest to the NW and the SE, respectively, and their ratio changes rapidly near the coast. Se has a broad maximum over Central China, and the Se/Al ratio (an indicator of pollution vs. crustal aerosol) increases progressively from the NW to the SE. A simple index for simulating pollution aerosol, which uses population density, annual precipitation, and mean wind speed, adequately reproduces the large-scale pattern of pollution aerosol and shows how crustal Al in the NW gradually gives way to flyash Al toward the SE.

Graphical abstract

Keywords

Chinese aerosol; Elemental concentration; Distribution; Pollution index

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