Impacts of petroleum exploitation activities on the speciation of inorganic arsenic in groundwater

Chen, Tingting; Yuan, Xuehua; Su, Yuhong

doi:10.1080/15275922.2020.1836080

Cited by 4 publications

(3 citation statements)

References 33 publications

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“…93 − 102 It is possible that this reductive dissolution is coupled with the oxidation of methane or other hydrocarbons that occur either naturally or as a result of anthropogenic activities. 103 − 109 Correlations between As levels in C6 samples and distance to coal-mining operations, COG wells, or UOG wells were not found to be statistically significant; thus, the reductive-dissolution reaction does not appear to have been enhanced by known industrial activities at a regional scale. That high As, Mn, and Fe were associated with C6 samples but not C4 samples of otherwise similar chemical composition may reflect heterogeneity in either the distribution of Fe and Mn oxides or the availability of a carbon source suitable for serving as an electron donor for the reductive-dissolution reaction.…”

Section: Resultsmentioning

confidence: 91%

“…Numerous laboratory and field studies have reported increases in aqueous concentrations of As in association with the development of anaerobic conditions that promote reductive dissolution and desorption of surface coatings of Fe and Mn oxides/hydroxides that are capable of binding As. This mechanism of As mobilization is thought to be favored within deltaic or alluvial depositional environments, like those of the western NAB, where the development of stratified redox zones occurs. − It is possible that this reductive dissolution is coupled with the oxidation of methane or other hydrocarbons that occur either naturally or as a result of anthropogenic activities. − Correlations between As levels in C6 samples and distance to coal-mining operations, COG wells, or UOG wells were not found to be statistically significant; thus, the reductive-dissolution reaction does not appear to have been enhanced by known industrial activities at a regional scale. That high As, Mn, and Fe were associated with C6 samples but not C4 samples of otherwise similar chemical composition may reflect heterogeneity in either the distribution of Fe and Mn oxides or the availability of a carbon source suitable for serving as an electron donor for the reductive-dissolution reaction.…”

Section: Resultsmentioning

confidence: 99%

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Natural and Anthropogenic Processes Affecting Domestic Groundwater Quality within the Northwestern Appalachian Basin

Siegel

Soriano

Clark

et al. 2022

Environ. Sci. Technol.

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Domestic wells serve as the primary drinking-water source for rural residents in the northern Appalachian Basin (NAB), despite a limited understanding of contaminant distributions in groundwater sources. We employ a newly collected dataset of 216 water samples from domestic wells in Ohio and West Virginia and an integrated contaminant-source attribution method to describe water quality in the western NAB and characterize key agents influencing contaminant distributions. Our results reveal arsenic and nitrate concentrations above federal maximum contaminant levels (MCLs) in 6.8 and 1.3% of samples and manganese concentrations above health advisory in 7.3% of samples. Recently recharged groundwaters beneath upland regions appear vulnerable to surface-related impacts, including nitrate pollution from agricultural activities and salinization from road salting and domestic sewage sources. Valley regions serve as terminal discharge points for long-residence-time groundwaters, where mixing with basin brines is possible. Arsenic impairments occurred in alkaline groundwaters with major-ion compositions altered by ion exchange and in low-oxygen metal-rich groundwaters. Mixing with as much as 4−10% of mine discharge-like waters was observed near coal mining operations. Our study provides new insights into key agents of groundwater impairment in an understudied region of the NAB and presents an integrated approach for contaminantsource attribution applicable to other regions of intensive resource extraction.

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Section: Resultsmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 99%

Natural and Anthropogenic Processes Affecting Domestic Groundwater Quality within the Northwestern Appalachian Basin

Siegel

Soriano

Clark

et al. 2022

Environ. Sci. Technol.

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“…Pyrite minerals are one of the main natural sources of As in the environment, while anthropogenic sources include agricultural chemicals such as insecticides and herbicides, mining, manufacturing industries, coal burning, and chromated copper arsenate (CCA) wood preservatives 2 . Inorganic forms of arsenic, such as trivalent arsenite (As III) and pentavalent arsenate (As V) are the most widespread and toxic forms found in groundwater 3 . In the underground water of more than 70 countries, arsenic contamination has been reported, and affected the health of millions of people.…”

Section: Introductionmentioning

confidence: 99%

The association of arsenic exposure with mortality due to cancer, diabetes, Alzheimer's and congenital anomalies using Poisson regression

Rahmani,

Khamutian,

Doosti-Irani

et al. 2023

Sci Rep

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The present study aims to determine the relationship between the concentration of arsenic in the groundwater of Hamadan province and the mortality rate due to various types of malignancies, congenital anomalies, diabetes mellitus and Alzheimer's. Mortality data due to various causes of death in Hamadan province were collected for five years (2016–2020). Sampling of drinking water was determined in the reference laboratory using polarography method. Poisson regression was used to investigate the relationship between arsenic level and the death rate due to various types of disease, at a significant level (p value < 0.05). According to the results of Poisson regression, among the various causes of death (N = 8042), Alzheimer's 5.94 (3.67–9.61), diabetes mellitus 4.05 (3.5–5.37), congenital malformations 2.98 (1.88–4.72), breast cancer 2.72 (1.56–4.71), leukemia 1.90 (1.24–2.92), stomach cancer 1.64 (1.28–2.10), Liver cancer 1.58 (1.58–2.30), other digestive organs 5.86 (3.38–10.16), meninges and brain cancer 1.57 (1.02–2.41) showed the highest relationship with arsenic contamination. The results of this study could be evidence for a positive and significant relationship between arsenic concentrations and mortality rates due to cancers, diabetes mellitus, Alzheimer disease, and congenital malformations. Therefore, it's necessary to use appropriate water treatment methods to remove arsenic at the source in contaminated areas.

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The spectral fusion of laser-induced breakdown spectroscopy (LIBS) and mid-infrared spectroscopy (MIR) coupled with random forest (RF) for the quantitative analysis of soil pH

Chen

Men

Zhao

et al. 2021

J. Anal. At. Spectrom.

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Impacts of petroleum exploitation activities on the speciation of inorganic arsenic in groundwater

Cited by 4 publications

References 33 publications

Natural and Anthropogenic Processes Affecting Domestic Groundwater Quality within the Northwestern Appalachian Basin

Natural and Anthropogenic Processes Affecting Domestic Groundwater Quality within the Northwestern Appalachian Basin

The association of arsenic exposure with mortality due to cancer, diabetes, Alzheimer's and congenital anomalies using Poisson regression

The spectral fusion of laser-induced breakdown spectroscopy (LIBS) and mid-infrared spectroscopy (MIR) coupled with random forest (RF) for the quantitative analysis of soil pH

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