Heavy metal pollution by road-deposited sediments and its contribution to total suspended solids in rainfall runoff from intensive industrial areas SCIE SCOPUS

Cited 12 time in WEB OF SCIENCE Cited 16 time in Scopus
Title
Heavy metal pollution by road-deposited sediments and its contribution to total suspended solids in rainfall runoff from intensive industrial areas
Author(s)
Jeong, Hyeryeong; Choi, Jin Young; Lee, Jihyun; Lim, J.; Ra, Kongtae
KIOST Author(s)
Jeong, Hyeryeong(정혜령)Choi, Jin Young(최진영)Ra, Kongtae(나공태)
Publication Year
2020-06
Abstract
Understanding the relationship between road-deposited sediments (RDS) and total suspended solids (TSS) is essential for managing non-point pollution. Studying the heavy metal concentrations of RDS and TSS in rainfall is important to the development of RDS management strategies and to the design of effective stormwater management practices. We investigated the heavy metal (V, Cr, Mn, Co, Ni, Cu, Zn, As, Mo, Cd, Sn, Pb) in RDS and TSS in rainfall runoff to assess the metal pollution level and to evaluate the contribution of RDS heavy metal pollution in the TSS. The heavy metal pollution in RDS and TSS in industrial areas was relatively higher in small particles (<125 mu m), while TSS had a higher heavy metal concentration than RDS. In addition, the concentration of heavy metals in TSS increased rapidly during the initial rainfall. The amount of particles larger than 125 mu m also increased, suggesting that large metal particles accumulated in industrial areas were also discharged in the form of non-point pollution. The amount of RDS per unit of industrial area (g/m(2)) and the accumulation of heavy metals (Pb, Cu, and Zn) (mg/m(2)) were 15- and 8-54-fold higher than those of urban areas, respectively. Considering particles <125 mu m, which can be easily transported or discharged during rainfall, the contribution rate of RDS to TSS was 41.3%, but the average contribution rate to heavy metals in TSS was 22.1%. The average load of heavy metals from industrial areas in TSS was 77.9%. The load of Cu, Ni, As, Cd, and Sn exceeded 90%, indicating that most of these metals were attributed to industrial activities related to metal processing. Our results suggest the importance of efficient road cleaning and rainfall runoff management strategies to solve the heavy metal pollution problem caused by non-point sources in industrial areas. (C) 2020 Elsevier Ltd. All rights reserved.
ISSN
0269-7491
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/38617
DOI
10.1016/j.envpol.2020.115028
Bibliographic Citation
ENVIRONMENTAL POLLUTION, v.265, 2020
Publisher
ELSEVIER SCI LTD
Subject
POLYCYCLIC AROMATIC-HYDROCARBONS; PARTICLE-SIZE DISTRIBUTION; URBAN STREET DUST; SOURCE APPORTIONMENT; CONTAMINATION; ELEMENTS; CITY; SURFACE; SHIHWA; RIVER
Keywords
Heavy metal; Road-deposited sediment (RDS); Total suspended solids (TSS); Rainfall runoff; Industrial area
Type
Article
Language
English
Document Type
Article
Publisher
ELSEVIER SCI LTD
Related Researcher
Research Interests

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

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