Asian dust storm as conveyance media of anthropogenic pollutants SCIE SCOPUS

Cited 19 time in WEB OF SCIENCE Cited 17 time in Scopus
Title
Asian dust storm as conveyance media of anthropogenic pollutants
Author(s)
Kim, Wonnyon; Doh, Seong-Jae; Yu, Yongjae
KIOST Author(s)
Kim, Wonnyon(김원년)
Publication Year
2012-03
Abstract
As conveyance media of natural minerals as well as anthropogenic pollutants, the Asian dust storm (ADS) marks a potential impact on human health in the world's most populated region and on the atmospheric energy budget by absorbing/reflecting the solar radiation in a hemispheric-scale. However, the physicochemical state of individual anthropogenic particulates in ADS including the average grain-size and volume concentrations, grain morphology, and the mixing states with natural minerals is not fully understood. Here we trace pollution features of ADS including the temporal atmospheric loadings of particulates carried by ADS using rock magnetic methods and intensive microscopic analyses. Magnetic concentration has coupled with the total suspended particulates in ADS and has increased similar to 9% for the past four years (2004-2007), resulting mainly from the increasing fossil-fuel combustion in East Asia. Notably, most of the observed particles in ADS contain carbon as a major element and some also contain sulfur. In addition, other anthropogenic elemental signatures encompass iron-oxides of combustion origin and heavy metals (Cr, Pb and Zn). Based on the predominance of carbon contents, increasing the atmospheric temperature in East Asia by ADS loadings can be expected by absorbing solar radiation effectively. (C) 2011 Elsevier Ltd. All rights reserved.
ISSN
1352-2310
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3620
DOI
10.1016/j.atmosenv.2011.12.034
Bibliographic Citation
ATMOSPHERIC ENVIRONMENT, v.49, pp.41 - 50, 2012
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Subject
BLACK-CARBON; REMANENT MAGNETIZATION; DAILY MORTALITY; LOW-TEMPERATURE; EAST-ASIA; CHINA; POLLUTION; TRANSITION; AEROSOLS; EVENTS
Keywords
Anthropogenic particulates; Asian dust; Heavy metals; Iron-oxides; Sulfates
Type
Article
Language
English
Document Type
Article
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Related Researcher
Research Interests

Paleomagnetism,Environmental Science,Geology,고지자기,환경과학,지질학

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