The Impact Evaluation of Acid Mine Drainage on Zebrafish ( Danio rerio ) and Water Fleas ( Daphnia magna ) in the Vicinity of the Geum River Basin in Korea

Hyojik Yoon () and Jonghyun Yoon
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Hyojik Yoon: Institute of Natural and Science, College of Science and Technology, Korea University, Sejong 30019, Republic of Korea
Jonghyun Yoon: National Institute of Environmental Research, Incheon 22689, Republic of Korea

IJERPH, 2022, vol. 19, issue 24, 1-9

Abstract: Heavy metals, such as copper, lead, and cadmium, carried by acid mine drainage are pollutants of the aquatic ecosystem, posing a significant health risk to the water resource for humans. Environmental technologies to reduce metal contamination are applied for post-mining prevention and improvement. Despite detailed pollution management, water contaminated by heavy metals still flows into the natural water system. This study investigated the impact of drainage discharged from abandoned mines near the major river in South Korea on aquatic organisms. The toxicity of the field water showed a more significant effect than observed through the experiment for each heavy-metal concentration. Various toxic substances coexisted in the field water around the mine, such that the overall toxic intensity was high even when the concentration of each heavy metal was low. As a result, the inhibition of activity of aquatic organisms was observed at low individual concentrations, and further investigation on the effect of long-term exposure to trace amounts of heavy metals is required.

Keywords: acid mine drainage; bioassay; cognitive function; locomotion; zebrafish (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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