Hydrogeochemical reconnaissance of arsenic cycling and possible environmental risk in hydrothermal systems of Taiwan
Article
Article Title | Hydrogeochemical reconnaissance of arsenic cycling and possible environmental risk in hydrothermal systems of Taiwan |
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ERA Journal ID | 212658 |
Article Category | Article |
Authors | Maity, Jyoti Prakash (Author), Chen, Chien-Yen (Author), Bundschuh, Jochen (Author), Bhattacharya, Prosun (Author), Mukherjee, Abhijit (Author) and Chang, Young-Fo (Author) |
Journal Title | Groundwater for Sustainable Development |
Journal Citation | 5, pp. 1-13 |
Number of Pages | 13 |
Year | 2017 |
Publisher | Elsevier BV |
Place of Publication | Netherlands |
ISSN | 2352-801X |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.gsd.2017.03.001 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S2352801X17300255 |
Abstract | Hydrothermal activity creates geo-hydro-chemical interactions between hot water/fluid and the host rocks, which changes the hydro-chemical composition of the geothermal water/fluid and enriches trace elements. Existence of arsenic (As) is reported from different hydrothermal systems as well as several region in groundwater system at elevated concentration globally, compared to 10 μg/L WHO (World health Organization) guideline. The distribution of dissolved major and minor elements, including arsenic (As) was studied in hydrothermal systems of Taiwan. For the first time in Taiwan As(V) and As(III) species were researched from the three principal geological settings of Taiwan. Aim was to understand the cycling, fate and transport and potential impact of As on the surficial hydrological systems. Water samples were collected from sixteen hydrothermal springs of 3 different geological settings. Three groups of hydrothermal spring water samples could be distinguished: (i) strongly acidic (pH<3), sulfate-enriched waters of H-SO4-type (Yangmingshan, and Taipu, Beitou), (ii) slightly alkaline waters (pH: 8–8.95) (Jiben, Antung and Kung-Tzu-Ling), and (iii) circum-neutral waters (pH 6.47–7.41) of Na-HCO3/Na-Cl-HCO3-type (Wulai, Hongye, Rueisuei, Chung-Lun and Biolai). The waters are enriched with alkali and alkali earth metals compared to drinking water. Similarly, the water of most of the geothermal springs were found to be enriched with As (highest concentration at Beitou: 1.456 mg/L) with As(III) being the principal As species. Arsenic concentrations of hydrothermal spring waters in igneous rock terrains exhibit highest concentrations (0.69±0.71 mg/L) followed by those of sedimentary (0.16±0.14 mg/L) and metamorphic (0.06±0.02 mg/L) terrains. The discharged geothermal springs water contaminate the surface and groundwater (including drinking and irrigation water resources), where significant levels of arsenic and other toxic element have detected and hence being a significant risk for human health and environmental. |
Keywords | Arsenic, Trace element, Hydrochemistry, Hydrothermal spring |
ANZSRC Field of Research 2020 | 410404. Environmental management |
429999. Other health sciences not elsewhere classified | |
410402. Environmental assessment and monitoring | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | International Centre for Applied Climate Science |
National Chung Cheng University, Taiwan | |
Faculty of Health, Engineering and Sciences | |
School of Civil Engineering and Surveying | |
Indian Institute of Technology, India | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q7965/hydrogeochemical-reconnaissance-of-arsenic-cycling-and-possible-environmental-risk-in-hydrothermal-systems-of-taiwan
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