Human health risk assessment from arsenic exposures in Bangladesh

Joseph, Tijo; Dubey, Brajesh; McBean, Edward A.

doi:10.1016/j.scitotenv.2015.05.053

Cited by 92 publications

(35 citation statements)

References 65 publications

(75 reference statements)

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“…Arsenic (As) is considered to be the most widely distributed contaminant currently in the food chain (Joseph et al, 2015a, 2015b; Llobet et al, 2003). As is released from both natural sources (parent rocks) and also from various anthropogenic activities such as agricultural practices, irrigation with As-contaminated water (Waqas et al, 2015), the improper applications of arsenical fertilizers, insecticides, herbicides, use of poultry litter with As-based intestinal palliatives (Jia et al, 2012; Oti, 2015; Zhu et al, 2008), mining activities, and petroleum refineries (Martínez-Sánchez et al, 2011; Khan et al, 2014; Kabata-Pendias, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…This research area has gained increasing attention throughout the world (e.g., Chang et al, 2014). Food crops such as vegetables and cereals are a potential entry source of As into the food chain and can reflect the levels of As that exist in the soil in which they are cultivated (Arain et al, 2009; Joseph et al, 2015b; Rahman et al, 2008; Ramirez-Andreotta et al, 2013a). Millions of individuals in south and south-east Asia have been suffering with As poisoning from exposure to As-contaminated food-crops from the last several years (Jia et al, 2012; Neumann et al, 2011; Zhu et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

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Quantification of inorganic arsenic exposure and cancer risk via consumption of vegetables in southern selected districts of Pakistan

Rehman

Khan

Qin

et al. 2016

Science of The Total Environment

101

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Human exposures to arsenic (As) through different pathways (dietary and non-dietary) are considered to be one of the primary worldwide environmental health risks to humans. This study was conducted to investigate the presence of As in soil and vegetable samples collected from agricultural lands located in selected southern districts of Khyber Pakhtunkhwa (KPK) Province, Pakistan. We examined the concentrations of total arsenic (TAs), organic species of As such as monomethylarsonic acid (MMA) and dimethylarsonic acid (DMA), and inorganic species including arsenite (AsIII) and arsenate (AsV) in both soil and vegetable. The data were used to determine several parameters to evaluate human health risk, including bioconcentration factor (BCF) from soil to plant, average daily intake (ADI), health risk index (HRI), incremental lifetime cancer risk (ILTCR), and hazard quotient (HQ). The total As concentration in soil samples of the five districts ranged from 3.0-3.9 mg kg−1, exhibiting minimal variations from site to site. The mean As concentration in edible portions of vegetable samples ranged from 0.03-1.38 mg kg−1. It was observed that As concentrations in 75% of the vegetable samples exceeded the safe maximum allowable limit (0.1 mg kg−1) set by WHO/FAO. The highest value of ADI for As was measured for M. charantia, while the lowest was for A. chinense. The results of this study revealed minimal health risk (HI <1) associated with consumption of vegetables for the local inhabitants. The ILTCR values for inorganic As indicated a minimal potential cancer risk through ingestion of vegetables. In addition, the HQ values for total As were <1, indicating minimal non-cancer risk.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Quantification of inorganic arsenic exposure and cancer risk via consumption of vegetables in southern selected districts of Pakistan

Rehman

Khan

Qin

et al. 2016

Science of The Total Environment

101

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“…The ingestion of contaminated As (directly and/or indirectly through the food chain; i.e., arsenite and arsenate) was reported to induce carcinogenesis and cardiovascular disorders in Bangladesh and West Bengal, India [23][24][25][26] (http://www.sos-arsenic. net/).…”

Section: Bangladesh and West Bengal (India)mentioning

confidence: 99%

“…Arsenic pollution of groundwater and its deleterious effects and risks on human health have been reported in many countries [16,[23][24][25][26][27][28][29][30]. Large-scale contamination by natural As frequently appears in the groundwaters of the Bengal Basin, which are the source of drinking water for more than 40 million people [21,26,[31][32][33].…”

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confidence: 99%

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Natural Arsenic in Global Groundwaters: Distribution and Geochemical Triggers for Mobilization

et al. 2016

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The elevated concentration of arsenic (As) in the groundwaters of many countries worldwide has received much attention during recent decades. This article presents an overview of the natural geochemical processes that mobilize As from aquifer sediments into groundwater and provides a concise description of the distribution of As in different global groundwater systems, with an emphasis on the highly vulnerable regions of Southeast Asia, the USA, Latin America, and Europe. Natural biogeochemical processes and anthropogenic activities may lead to the contamination of groundwaters by increased As concentrations. The primary source of As in groundwater is predominantly natural (geogenic) and mobilized through complex biogeochemical interactions within various aquifer solids and water. Sulfide minerals such as arsenopyrite and As-substituted pyrite, as well as other sulfide minerals, are susceptible to oxidation in the near-surface environment and quantitatively release significant quantities of As in the sediments. The geochemistry of As generally is a function of its multiple oxidation states, speciation, and redox transformation. The reductive dissolution of As-bearing Fe(III) oxides and sulfide oxidation are the most common and significant geochemical triggers that release As from aquifer sediments into groundwaters. The mobilization of As in groundwater is controlled by adsorption onto metal oxyhydroxides and clay minerals. According to recent estimates, more than 130 million people worldwide potentially are exposed to As in drinking water at levels above the World Health Organization's (WHO's) guideline value of 10 μg/L. Hence, community education to strengthen public awareness, the involvement and capacity building of local stakeholders in targeting As-safe aquifers, and direct action and implementation of best practices in identifying safe groundwater sources for the installation of safe drinking water wells through action and enforcement by local governments and international water sector professionals are urgent necessities for sustainable As mitigation on a global scale.

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Contamination and health risk assessment of lead, arsenic, cadmium, and aluminum from a total diet study of Jilin Province, China

Wang

Hui³

et al. 2020

Food Science & Nutrition

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Human health risk assessment from arsenic exposures in Bangladesh

Cited by 92 publications

References 65 publications

Quantification of inorganic arsenic exposure and cancer risk via consumption of vegetables in southern selected districts of Pakistan

Quantification of inorganic arsenic exposure and cancer risk via consumption of vegetables in southern selected districts of Pakistan

Natural Arsenic in Global Groundwaters: Distribution and Geochemical Triggers for Mobilization

Contamination and health risk assessment of lead, arsenic, cadmium, and aluminum from a total diet study of Jilin Province, China

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