Investigations of Pb and Cu Isotopes to Trace Contamination Sources from the Artificial Shihwa Lake in Korea SCIE SCOPUS

Cited 2 time in WEB OF SCIENCE Cited 4 time in Scopus
Title
Investigations of Pb and Cu Isotopes to Trace Contamination Sources from the Artificial Shihwa Lake in Korea
Author(s)
Jeong, Hyeryeong; Choi, Jin Young; Lee, Jihyun; Ra, Kongtae
KIOST Author(s)
Jeong, Hyeryeong(정혜령)Choi, Jin Young(최진영)Ra, Kongtae(나공태)
Publication Year
2020-06
Abstract
The concentrations of heavy metals and Pb and Cu isotopes in sediments from five streams (A-G) around the Shihwa National Industrial Complex in Korea were investigated with the aim of identifying sources of metal pollution. The average concentration of Zn (21,106 mg/kg) was the highest, followed by Cu (2,804 mg/kg), Ni (2,126 mg/kg), Pb (897 mg/kg), Cr (807 mg/kg), As (18 mg/kg), Cd (8.0 mg/kg), and Hg (1.4 mg/kg). The concentrations tended to be highest in sediments from stream G. The Pb-206/Pb-207 and Pb-208/Pb-206 ratios of stream sediments ranged from 1.1302 to 1.1626 and 2.0983 to 2.1990, respectively. The Pb isotopes in stream sediments showed linear trends both Chinese Pb ore and Korean Pb-Zn Ore deposit. The Pb isotopic composition overlapped with Shihwa road dust values. The delta Cu-65 AE647 values of stream sediments ranged from -0.16 parts per thousand to 0.64 parts per thousand, clustering in two groups, one relatively enriched in the light Cu isotope (0.08 parts per thousand-0.13 parts per thousand) and another enriched in the heavy Cu isotope (0.37 parts per thousand-0.48 parts per thousand). Our results indicate that streams F and G are relatively enriched in heavy Cu isotopes. Pb-208/Pb-206 vs. delta Cu-65 AE647 plots indicate that the two branches of the Shingil stream (E and F) are noticeably distinguished, with their isotopic compositions suggesting different pollution sources. The Cu and Pb isotopic compositions reflect those of road dust, and suggest that the stream sediments were affected by road dust transported in stormwater runoff. Thus, road dust may be a potential source of metal pollution in the stream sediments of industrial regions in Korea.
ISSN
0749-0208
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/38633
DOI
10.2112/SI95-218.1
Bibliographic Citation
Journal of Coastal Research, v.95, no.sp1, pp.1122 - 1127, 2020
Publisher
Coastal Education Research Foundation Inc.
Keywords
Pb isotopes; Cu isotopes; stream sediments; heavy metal; pollution
Type
Article
Language
English
Document Type
Article
Publisher
Coastal Education Research Foundation Inc.
Related Researcher
Research Interests

Marine chemistry,Isotope Biogeochemistry,Environmental Forensic,해양화학,동위원소 생지화학,환경법의학

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