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Airborne iron across major urban centers in South Korea between 1991 and 2012

Title
Airborne iron across major urban centers in South Korea between 1991 and 2012
Author
김기현
Keywords
Air pollution; Iron; Heavy metals; Asian dust; Temporal; Spatial; S. Korea
Issue Date
2016-04
Publisher
ELSEVIER SCIENCE BV
Citation
SCIENCE OF THE TOTAL ENVIRONMENT, v. 550, Page. 309-320
Abstract
In this study, the distribution of airborne iron (Fe), one of the most abundant heavy metals in the Earth's crust was investigated to describe the basic features of i'ts pollution in various urban locations. The spatiotemporal distribution of Fe concentrations in seven major South Korean cities exhibited unique patterns to reflect differences as to Fe sources reflected in the relative enrichment in coastal relative to inland areas. In addition, the analysis of long-term trends of different metal species indicated that Fe levels maintained a fairly constant trend, while there had been a noticeable decline in concentrations of other metals (Cd, Cr, Cu, Mn, and Ni).The relative robustness of our con -elation analysis was assessed by comparing (1) the Fe concentrations among cities, and (2) Fe with other metals at a given city. Fe concentrations were also partly explainable by the frequency of Asian dust events in most cities, with the observed spatial gradients in such relationships. (C) 2015 Elsevier B.V. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S0048969715310925?via%3Dihubhttp://hdl.handle.net/20.500.11754/52548
ISSN
0048-9697; 1879-1026
DOI
10.1016/j.scitotenv.2015.11.109
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CIVIL AND ENVIRONMENTAL ENGINEERING(건설환경공학과) > Articles
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