시화산업단지 강우유출수 내 중금속 오염도 평가 및 오염원 추적 연구 KCI

Title
시화산업단지 강우유출수 내 중금속 오염도 평가 및 오염원 추적 연구
Alternative Title
Characteristics and Assessment of Metal Pollution and their Potential Source in Stormwater Runoff from Shihwa Industrial Complex, Korea
Author(s)
이지현; 정혜령; 최진영; 나공태
KIOST Author(s)
Jeong, Hyeryeong(정혜령)Choi, Jin Young(최진영)Ra, Kongtae(나공태)
Publication Year
2020-03
Abstract
Stormwater runoff is known as a major non-point water pollution source that transports heavy metals, which have accumulated in road surface, to stream and coastal area. Dissolved and particulate metals in stormwater runoffs have been investigated to understand the outflow characteristics of heavy metals during rainfall events and to identify their pollution sources. The concentration of dissolved Co and Ni decreased after the outflow with high concentrations at the beginning of the rainfall, and other metals showed different characteristics depending on the rainfall and rate of discharge. Particulate metals showed a similar trend with the temporal variation of suspended solids concentration in stormwater runoffs. The results of geo-accumulation index (Igeo) indicated that the stormwater runoffs from industrial region were very highly polluted with Cu, Zn and Cd. As a result of comparing the metal concentrations of <125 μm for road dust near the study area, Cu, Zn and Cd were originated from inside of metal manufacturing facilities rather than traffic activities at road surface and these metals accumulated on the surface area of facilities were transported to the water environments during stormwater event. The average discharged amounts of heavy metals for one rainfall event were Cr 128 g, Co 12.35 g, Ni 98.5 g, Cu 607.5 g, Zn 8,429.5 g, As 6.95 g, Cd 3.7 g, Pb 251.75 g, indicating that metal runoff loads in the stormwater runoffs are closely related to surrounding industry types.
ISSN
2288-1115
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/38838
Bibliographic Citation
생태와 환경, v.53, no.1, pp.91 - 101, 2020
Publisher
한국하천호수학회
Keywords
metal pollution; stormwater runoff; geo-accumulation index; Shihwa industrial region
Type
Article
Language
Korean
Publisher
한국하천호수학회
Related Researcher
Research Interests

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

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