Arsenic, fluoride and iodine in groundwater of China

Wen, Donghui; Zhang, Fucun; Zhang, Eryong; Wang, Cheng; Han, Songjun; Zheng, Yan

doi:10.1016/j.gexplo.2013.10.012

Cited by 214 publications

(65 citation statements)

References 115 publications

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“…Arsenic is often released from production of purified copper and is commonly used for alloys and pesticides [46]. Natural mineral reserves and anthropogenic mining activities are linked to elevated arsenic levels in water reservoirs in China [47][48][49][50]. Examples of potential contamination sources are deep groundwater wells (e.g., Chifeng), mining discharges (e.g., Baiyin, Chenzhou, Chongqing, Kunming, and Yichang), utilizing arsenic-rich coal and pyrite, and pesticides used in rural areas.…”

Section: Methodsmentioning

confidence: 99%

Spatiotemporal Analysis of Heavy Metal Water Pollution in Transitional China

Lee

et al. 2015

Sustainability

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China's socioeconomic transitions have dramatically accelerated its economic growth in last three decades, but also companioned with continuous environmental degradation. This study will advance the knowledge of heavy metal water pollution in China from a spatial-temporal perspective. Specifically, this study addressed the following: (1) spatial patterns of heavy metal water pollution levels were analyzed using data of prefecture-level cities from 2004 to 2011; and (2) spatial statistical methods were used to examine the underlying socioeconomic and physical factors behind water pollution including socioeconomic transitions (industrialization, urbanization, globalization and economic development), and environmental characteristic (natural resources, hydrology and vegetation coverage). The results show that only Cr pollution levels increased over the years. The individual pollution levels of the other four heavy metals, As, Cd, Hg, and Pb, declined. High heavy metal water pollution levels are closely associated with both anthropogenic activities and physical environments, in particular abundant mineral resources and industrialization prosperity. On the other hand, economic development and urbanization play important roles in controlling water pollution problems. The analytical findings will provide valuable information for OPEN ACCESSSustainability 2015, 7 9068 policy-makers to initiate and adjust protocols and strategies for protecting water sources and controlling water pollution; thus improving the quality of living environments.

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Section: Methodsmentioning

confidence: 99%

Spatiotemporal Analysis of Heavy Metal Water Pollution in Transitional China

Lee

et al. 2015

Sustainability

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“…Additionally, it has been shown that the aquifer system contains a number of horizons of brackish, low quality water, in which high concentrations of fluoride occur (Wen et al, 2013). The Neogene sediments consist of alluvial sandstone interbedded with clay, with a thickness of 1200-2000 m, and bottom depth of 1500-2500 m. The temperature of the geothermal water in the sediments reaches 30-85°C, with TDS generally less than 3.0 g/L, and it has become a primary geothermal water production source.…”

Section: Quaternary and Neogene Aquifersmentioning

confidence: 99%

Revised conceptualization of the North China Basin groundwater flow system: Groundwater age, heat and flow simulations

Cao

Han

Currell

et al. 2016

Journal of Asian Earth Sciences

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a b s t r a c tGroundwater flow in deep sedimentary basins results from complex evolution processes on geological timescales. Groundwater flow systems conceptualized according to topography and/or groundwater table configuration generally assume a near-equilibrium state with the modern landscape. However, the time to reach such a steady state, and more generally the timescales of groundwater flow system evolution are key considerations for large sedimentary basins. This is true in the North China Basin (NCB), which has been studied for many years due to its importance as a groundwater supply. Despite many years of study, there remain contradictions between the generally accepted conceptual model of regional flow, and environmental tracer data. We seek to reconcile these contractions by conducting simulations of groundwater flow, age and heat transport in a three dimensional model, using an alternative conceptual model, based on geological, thermal, isotope and historical data. We infer flow patterns under modern hydraulic conditions using this new model and present the theoretical maximum groundwater ages under such a flow regime. The model results show that in contrast to previously accepted conceptualizations, most groundwater is discharged in the vicinity of the break-in-slope of topography at the boundary between the piedmont and central plain. Groundwater discharge to the ocean is in contrast small, and in general there are low rates of active flow in the eastern parts of the basin below the central and coastal plain. This conceptualization is more compatible with geochemical and geothermal data than the previous model. Simulated maximum groundwater ages of $1 Myrs below the central and coastal plain indicate that residual groundwater may be retained in the deep parts of the basin since being recharged during the last glacial period or earlier. The groundwater flow system has therefore probably not reached a new equilibrium state with modern-day hydraulic conditions. The previous hypothesis that regional groundwater flow from the piedmont groundwater recharge zone predominantly discharges at the coastline may therefore be false. A more reliable alternative might be to conceptualize deep groundwater below the coastal plains a hydrodynamically stagnant zone, responding gradually to landscape and hydrological change on geologic timescales. This study brings a new and original understanding of the groundwater flow system in an important regional basin, in the context of its geometry and evolution over geological timescales. There are important implications for the sustainability of the ongoing high rates of groundwater extraction in the NCB.

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“…Measurement biases can be invoked with the large sample volumes required (3 mL) of the Huaihe River (one of the seven major rivers in China) (Wen et al, 2013) and 244 conduit for the South-to-North Water Diversion megaproject (Fig. 1); a national 245 scheme that aims to deliver water to the drought prone regions in Northern China, by 246 redirecting supplies from the southern watersheds (Liang et al, 2012).…”

mentioning

confidence: 99%

Novel DGT method with tri-metal oxide adsorbent for in situ spatiotemporal flux measurement of fluoride in waters and sediments

et al. 2016

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This is an open access article published under a Creative Commons Attribution-NonCommercial-NoDerivs License (https://creativecommons.org/licenses/by-nc-nd/4.0/), which permits distribution and reproduction for non-commercial purposes, provided the author and source are cited. General rightsCopyright for the publications made accessible via the Queen's University Belfast Research Portal is retained by the author(s) and / or other copyright owners and it is a condition of accessing these publications that users recognise and abide by the legal requirements associated with these rights.Take down policy The Research Portal is Queen's institutional repository that provides access to Queen's research output. Every effort has been made to ensure that content in the Research Portal does not infringe any person's rights, or applicable UK laws. If you discover content in the Research Portal that you believe breaches copyright or violates any law, please contact openaccess@qub.ac.uk.

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Arsenic, fluoride and iodine in groundwater of China

Cited by 214 publications

References 115 publications

Spatiotemporal Analysis of Heavy Metal Water Pollution in Transitional China

Spatiotemporal Analysis of Heavy Metal Water Pollution in Transitional China

Revised conceptualization of the North China Basin groundwater flow system: Groundwater age, heat and flow simulations

Novel DGT method with tri-metal oxide adsorbent for in situ spatiotemporal flux measurement of fluoride in waters and sediments

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