Evaluation on the Degree of Satisfaction with Working Environment for Workers Engaged in the Composting Plant with Livestock Manure in the Han-river Watershed

2002 ◽  
Vol 44 (2) ◽  
pp. 261-270
Keyword(s):  
Working Environment ◽  
Livestock Manure ◽  
River Watershed ◽  
Han River ◽  
Degree Of Satisfaction

scholarly journals Geographical Distribution and Risk Assessment of Volatile Organic Compounds in Tributaries of the Han River Watershed

Agronomy ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 956
Author(s):  
Jong-Kwon Im ◽  
Yong-Chul Cho ◽  
Hye-Ran Noh ◽  
Soon-Ju Yu
Keyword(s):  
Volatile Organic Compounds ◽  
South Korea ◽  
Organic Compounds ◽  
Control Strategies ◽  
Anthropogenic Activities ◽  
River Watershed ◽  
Han River ◽  
Detection Frequency ◽  
Volatile Organic ◽  
Mean Concentration

Volatile organic compounds (VOCs), with negative impacts on the aquatic ecosystem, are increasingly released into the environment by anthropogenic activities. Water samples were collected from five areas of the Han River Watershed (HRW) tributaries, South Korea, to detect 11 VOCs, which were classified as halogenated aliphatic hydrocarbons (HAHs) and aromatic hydrocarbons (AHs). Among the 11 VOCs, 1,1-dichloroethylene, 1,1,1-trichloroethane, and vinyl chloride were undetected. The highest concentration compounds were chloroform (0.0596 ± 0.1312 µg/L), trichloroethylene (0.0253 ± 0.0781 µg/L), and toluene (0.0054 ± 0.0139 µg/L). The mean concentration (0.0234 µg/L) and detection frequency (37.0%) of HAHs were higher than those of AHs (0.0036 µg/L, 21.0%, respectively). The Imjin Hantan River area exhibited the highest mean concentration (0.2432 µg/L) and detection frequency (22.9%), because it is located near industrial complexes, thus, highlighting their role as important VOC sources. However, the detected VOCs had lower concentrations than those permitted by the EU, WHO, USA, and South Korea drinking water guidelines. Ecological risks associated with the VOCs were estimated by risk quotient (RQ); consequently, the predicted no-effect concentration was 0.0029 mg/L, and the toluene and styrene RQ values were >1 and >0.5, respectively. The findings may facilitate policymakers in designing pollution control strategies.

scholarly journals “Contamination Assessment of Abandoned Mines by Integrated Pollution Index in the Han River Watershed”

2009 ◽  
Vol 1 (1) ◽  
pp. 27-33 ◽  
Author(s):  
Hosik Lee ◽  
Md. Imran Kabir ◽  
Phil Sang Kwon ◽  
Jong Myeong Kim ◽  
Jeong Gyu Kim ◽  
...  
Keyword(s):  
Pollution Index ◽  
Abandoned Mines ◽  
Contamination Assessment ◽  
River Watershed ◽  
Han River

Analysis and prediction of the spatial distribution of EPT (Ephemeroptera, Plecoptera, and Trichoptera) assemblages in the Han River watershed in Korea

2017 ◽  
Vol 20 (2) ◽  
pp. 613-625 ◽  
Author(s):  
Seung-Phil Chun ◽  
Young-Chul Jun ◽  
Hong-Geun Kim ◽  
Woo-Kyun Lee ◽  
Myoung-Chul Kim ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
River Watershed ◽  
Han River

Pharmaceutical compounds in tributaries of the Han River watershed, South Korea

2020 ◽  
Vol 188 ◽  
pp. 109758 ◽  
Author(s):  
Jong Kwon Im ◽  
Moon Young Hwang ◽  
Eun Hee Lee ◽  
Hye Ran Noh ◽  
Soon Ju Yu
Keyword(s):  
South Korea ◽  
Pharmaceutical Compounds ◽  
River Watershed ◽  
Han River

Characteristics of Fish Communities in Namyang Lake and its Tributaries in the Estuary of Han River Watershed, South Korea

2021 ◽  
Vol 54 (1) ◽  
pp. 1-11
Author(s):  
Yeong-Ho Kwak ◽  
Seung-Young Kim ◽  
Ha-Yun Song ◽  
Hyoung-Joo Jeon ◽  
Mi-Young Song
Keyword(s):  
South Korea ◽  
Fish Communities ◽  
River Watershed ◽  
Han River

The Han River watershed management initiative for the South-to-North Water Transfer project (Middle Route) of China

2008 ◽  
Vol 148 (1-4) ◽  
pp. 369-377 ◽  
Author(s):  
Quanfa Zhang ◽  
Zhifang Xu ◽  
Zehao Shen ◽  
Siyue Li ◽  
Shusen Wang
Keyword(s):  
Watershed Management ◽  
Water Transfer ◽  
The South ◽  
River Watershed ◽  
Han River ◽  
North Water
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