Econ. Environ. Geol. 2005; 38(1): 57-65

Published online February 28, 2005

© THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY

Characteristics of Groundwater, Sewage Water and Stream Water Contamination Based on VOCs Concentration Around Ulsan, Korea

Byong-Wook Cho*, Uk-Yun, Ig-Hwan Sung, Hyun-Chul Im and Woo-Seog Jang

Korea Institute of Geoscience and Mineral Resources, Daejeon 305-350, Korea

Correspondence to :

Byong-Wook Cho

cbw@kigam.re.kr

Received: September 13, 2004; Accepted: January 6, 2005

Abstract

To investigate the characteristics of the volatile organic compounds (VOCs) concentration in the groundwater around Ulsan, Korea, 168 groundwaters, 12 stream waters, and 6 sewage waters were analyzed for 61 VOCs. Results showed that VOCs were not detected in stream waters and total VOCs concentration in 5 sewage waters was in the range of ND-22.3 μg/L. In 78 groundwater samples more than one VOCs were detected and VOCs concentration of the samples ranged from 0.1 μg/L to 387.1 μg/L. However, VOCs concentration of 66 samples out of 78 samples showed less than 10 μg/L and that of only 6 samples exceeded Korea drinking water limit (KDWL). 42VOCs detected from the 168 groundwaters were 14 aromatic hydrocarbons out of 25, 27 chlorinated aliphatic hydrocarbons out of 35, and methyl tert-butyl ether (MTBE). Detection rate of each VOCs in the groundwaters was as follows: chloroform in 43 samples (25.6%), methylene chloride in 36 samples (21.4%), TCE in 26 samples (15.5%), 1,1-dichloroethane in 19 samples (1.3%), PCE in 16 samples (9.5%), cis-1,2-DCE in 15 samples (8.9%), and toluene in 14 samples (8.3%). Even though VOCs concentration in the groundwaters of the study area is still low, the city is expanding and the drinking water limit is becoming strict, and therefore continuous monitoring is necessary.

Keywords groundwater, VOCs, sewage water, contamination

Article

Econ. Environ. Geol. 2005; 38(1): 57-65

Published online February 28, 2005

Copyright © THE KOREAN SOCIETY OF ECONOMIC AND ENVIRONMENTAL GEOLOGY.

Characteristics of Groundwater, Sewage Water and Stream Water Contamination Based on VOCs Concentration Around Ulsan, Korea

Byong-Wook Cho*, Uk-Yun, Ig-Hwan Sung, Hyun-Chul Im and Woo-Seog Jang

Korea Institute of Geoscience and Mineral Resources, Daejeon 305-350, Korea

Correspondence to:

Byong-Wook Cho

cbw@kigam.re.kr

Received: September 13, 2004; Accepted: January 6, 2005

Abstract

To investigate the characteristics of the volatile organic compounds (VOCs) concentration in the groundwater around Ulsan, Korea, 168 groundwaters, 12 stream waters, and 6 sewage waters were analyzed for 61 VOCs. Results showed that VOCs were not detected in stream waters and total VOCs concentration in 5 sewage waters was in the range of ND-22.3 μg/L. In 78 groundwater samples more than one VOCs were detected and VOCs concentration of the samples ranged from 0.1 μg/L to 387.1 μg/L. However, VOCs concentration of 66 samples out of 78 samples showed less than 10 μg/L and that of only 6 samples exceeded Korea drinking water limit (KDWL). 42VOCs detected from the 168 groundwaters were 14 aromatic hydrocarbons out of 25, 27 chlorinated aliphatic hydrocarbons out of 35, and methyl tert-butyl ether (MTBE). Detection rate of each VOCs in the groundwaters was as follows: chloroform in 43 samples (25.6%), methylene chloride in 36 samples (21.4%), TCE in 26 samples (15.5%), 1,1-dichloroethane in 19 samples (1.3%), PCE in 16 samples (9.5%), cis-1,2-DCE in 15 samples (8.9%), and toluene in 14 samples (8.3%). Even though VOCs concentration in the groundwaters of the study area is still low, the city is expanding and the drinking water limit is becoming strict, and therefore continuous monitoring is necessary.

Keywords groundwater, VOCs, sewage water, contamination

    KSEEG
    Apr 30, 2024 Vol.57 No.2, pp. 107~280

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