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Singh A, Ramalingam P, Dhingra S, Ravichandiran V, Murti K. Arsenic: a Culpable Element and a Possible Menace for HIV/AIDS Patients. Biol Trace Elem Res 2022; 200:4955-4966. [PMID: 35128593 DOI: 10.1007/s12011-022-03097-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 01/02/2022] [Indexed: 11/02/2022]
Abstract
Arsenic contamination has long been recognized as one of the most harmful environmental pollutants resulting from anthropogenic activity. Apart from being an environmental toxicant or pollutant, this culpable heavy metal also has detrimental effects on human health. People throughout the world are exposed to arsenic (As) mostly through polluted drinking water. Acute inorganic arsenic (iAs) poisoning causes nausea, vomiting, stomach discomfort, and severe diarrhea. As on long-term exposure is a potent carcinogen, characterized by IARC (International Agency for Research on Cancer). As levels are high mainly in Gangetic regions due to which the people living around are suffering the consequences. The carcinogenicity of As is well established but the immunotoxicity caused by it is still unknown. Some animal model supports the toxicity of As in the immune system as well, but in humans, mainly suffering from human immunodeficiency virus (HIV), it is not well established. iAs suppresses the immune system by acting on different targets and exacerbating infections. Although animal studies have demonstrated that arsenic trioxide (As2O3) reduces viral rebound and restores CD4 + count in vivo when coupled with antiretroviral medications, elemental AS may have devastating effects on the immune system of HIV patients, making them more prone to opportunistic infections (OIs). It is well known that in later stages of HIV infection, neurological problems also complicate the conditions such as cognitive impairment and AIDS dementia complex (ADC). Along with immunotoxicity, As has the potential to damage HIV patients' brains. This article addresses the immunotoxicity of arsenic and exacerbations caused by it, along with the neurotoxicity, particularly in HIV patients residing near the Gangetic belt.
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Affiliation(s)
- Akanksha Singh
- Department of Pharmacy Practice, National Institute of Pharmaceutical Education and Research (NIPER), Bihar, Hajipur, India
| | - P Ramalingam
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Bihar, Hajipur, India
| | - Sameer Dhingra
- Department of Pharmacy Practice, National Institute of Pharmaceutical Education and Research (NIPER), Bihar, Hajipur, India
| | - V Ravichandiran
- Department of Pharmacy Practice, National Institute of Pharmaceutical Education and Research (NIPER), Bihar, Hajipur, India
- Department of Natural Products, National Institute of Pharmaceutical Education and Research (NIPER), West Bengal, Kolkata, India
| | - Krishna Murti
- Department of Pharmacy Practice, National Institute of Pharmaceutical Education and Research (NIPER), Bihar, Hajipur, India.
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Rakib MRJ, Rahman MA, Onyena AP, Kumar R, Sarker A, Hossain MB, Islam ARMT, Islam MS, Rahman MM, Jolly YN, Idris AM, Ali MM, Bilal M, Sun X. A comprehensive review of heavy metal pollution in the coastal areas of Bangladesh: abundance, bioaccumulation, health implications, and challenges. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:67532-67558. [PMID: 35921010 DOI: 10.1007/s11356-022-22122-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 07/16/2022] [Indexed: 06/15/2023]
Abstract
The coastal zone of Bangladesh, with a population density of 1278 people per square kilometer, is under serious threat due to heavy metal pollution. To date, many studies have been conducted on the heavy metal contamination in soils, water, aquatic animals, and plants in the coastal zone of Bangladesh; however, the available information is dispersed. In this study, previous findings on the contamination levels, distributions, risks, and sources of heavy metals in sediments and organisms were summarized for the first time to present the overall status of heavy metal pollution along coastal regions. Earlier research found that the concentrations of various heavy metals (HMs), particularly Co, Cd, Pb, Cu, Cr, Mn, Fe, and Ni in water, sediment, and fish in most coastal locations, were above their permissible limits. High concentrations of HMs were observed in sediments and water, like Cr of 55 mg/kg and 86.93 mg/l in the ship-breaking areas and Karnaphuli River, respectively, in coastal regions of Bangladesh. Heavy metals severely contaminated the Karnaphuli River estuary and ship-breaking area on the Sitakundu coast, where sediments were the ultimate sink of high concentrations of metals. Sedentary or bottom-dwelling organisms like gastropods and shrimp had higher levels of heavy metals than other organisms. As a result, the modified PRISMA review method was used to look at the critical research gap about heavy metal pollution in Bangladesh's coastal areas by analyzing the current research trends and bottlenecks.
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Affiliation(s)
- Md Refat Jahan Rakib
- Department of Fisheries and Marine Science, Faculty of Science, Noakhali Science and Technology University, Noakhali, Bangladesh.
| | - Md Asrafur Rahman
- Department of Fisheries and Marine Science, Faculty of Science, Noakhali Science and Technology University, Noakhali, Bangladesh
| | - Amarachi Paschaline Onyena
- Department of Marine Environment and Pollution Control, Nigeria Maritime University Okerenkoko, Warri, Delta State, Nigeria
| | - Rakesh Kumar
- School of Ecology and Environment Studies, Nalanda University, Rajgir, 803116, Bihar, India
| | - Aniruddha Sarker
- School of Applied Biosciences, College of Agriculture and Life Sciences, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - M Belal Hossain
- Department of Fisheries and Marine Science, Faculty of Science, Noakhali Science and Technology University, Noakhali, Bangladesh
- School of Engineering and Built Environment, Griffith University, Brisbane, QLD, Australia
| | | | - Md Saiful Islam
- Department of Soil Science, Patuakhali Science and Technology University, Dumki, Patuakhali, Bangladesh
| | - Md Mostafizur Rahman
- Laboratory of Environmental Health and Ecotoxicology, Department of Environmental Sciences, Jahangirnagar University, Dhaka, 1342, Bangladesh
| | - Yeasmin Nahar Jolly
- Atmospheric and Environmental Chemistry Laboratory, Chemistry Division Atomic Energy Centre, Dhaka, 1000, Bangladesh
| | - Abubakr M Idris
- Department of Chemistry, College of Science, King Khalid University, Abha, 62529, Saudi Arabia
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Abha, 62529, Saudi Arabia
| | - Mir Mohammad Ali
- Department of Aquaculture, Bangla Agricultural University, Sher-e, Dhaka-1207, Bangladesh
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, China
| | - Xian Sun
- Zhuhai Key Laboratory of Marine Bioresources and Environment, Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, School of Marine Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-Sen University, Guangzhou, 510275, China
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He Z, Xu Y, Ma Q, Zhou C, Yang L, Lin M, Deng P, Yang Z, Gong M, Zhang H, Lu M, Li Y, Gao P, Lu Y, He M, Zhang L, Pi H, Zhang K, Qin S, Yu Z, Zhou Z, Chen C. SOX2 modulated astrocytic process plasticity is involved in arsenic-induced metabolic disorders. JOURNAL OF HAZARDOUS MATERIALS 2022; 435:128942. [PMID: 35468398 DOI: 10.1016/j.jhazmat.2022.128942] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 04/02/2022] [Accepted: 04/13/2022] [Indexed: 06/14/2023]
Abstract
Metabolic disorders induced by arsenic exposure have attracted great public concern. However, it remains unclear whether hypothalamus-based central regulation mechanisms are involved in this process. Here, we exposed mice to 100 μg/L arsenic in drinking water and established a chronic arsenic exposure model. Our study revealed that chronic arsenic exposure caused metabolic disorders in mice including impaired glucose metabolism and decreased energy expenditure. Arsenic exposure also impaired glucose sensing and the activation of proopiomelanocortin (POMC) neurons in the hypothalamus. In particular, arsenic exposure damaged the plasticity of hypothalamic astrocytic process. Further research revealed that arsenic exposure inhibited the expression of sex-determining region Y-Box 2 (SOX2), which decreased the expression level of insulin receptors (INSRs) and the phosphorylation of AKT. The conditional deletion of astrocytic SOX2 exacerbated arsenic-induced effects on metabolic disorders, the impairment of hypothalamic astrocytic processes, and the inhibition of INSR/AKT signaling. Furthermore, the arsenic-induced impairment of astrocytic processes and inhibitory effects on INSR/AKT signaling were reversed by SOX2 overexpression in primary hypothalamic astrocytes. Together, we demonstrated here that chronic arsenic exposure caused metabolic disorders by impairing SOX2-modulated hypothalamic astrocytic process plasticity in mice. Our study provides evidence of novel central regulatory mechanisms underlying arsenic-induced metabolic disorders and emphasizes the crucial role of SOX2 in regulating the process plasticity of adult astrocytes.
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Affiliation(s)
- Zhixin He
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing 400038, China
| | - Yudong Xu
- Department of Environmental Medicine, School of Public Health, and Department of Emergency Medicine, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Qinlong Ma
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing 400038, China
| | - Chao Zhou
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing 400038, China; Army 953 Hospital, Shigatse Branch of Xinqiao Hospital, Third Military Medical University, Shigatse 857099, China
| | - Lingling Yang
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing 400038, China
| | - Min Lin
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing 400038, China
| | - Ping Deng
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing 400038, China
| | - Zhiqi Yang
- Brain Research Center and State Key Laboratory of Trauma, Burns, and Combined Injury, Third Military Medical University, Chongqing 400038, China
| | - Mingyue Gong
- Brain Research Center and State Key Laboratory of Trauma, Burns, and Combined Injury, Third Military Medical University, Chongqing 400038, China
| | - Huijie Zhang
- School of Medicine, Guangxi University, Nanning 530004, Guangxi Zhuang Autonomous Region, China
| | - Muxue Lu
- School of Medicine, Guangxi University, Nanning 530004, Guangxi Zhuang Autonomous Region, China
| | - Yanqi Li
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing 400038, China
| | - Peng Gao
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing 400038, China
| | - Yonghui Lu
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing 400038, China
| | - Mindi He
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing 400038, China
| | - Lei Zhang
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing 400038, China
| | - Huifeng Pi
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing 400038, China
| | - Kuan Zhang
- Brain Research Center and State Key Laboratory of Trauma, Burns, and Combined Injury, Third Military Medical University, Chongqing 400038, China
| | - Song Qin
- Department of Anatomy, Histology and Embryology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Zhengping Yu
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing 400038, China
| | - Zhou Zhou
- Department of Environmental Medicine, School of Public Health, and Department of Emergency Medicine, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China; Center for Neurointelligence, School of Medicine, Chongqing University, Chongqing 400030, China.
| | - Chunhai Chen
- Department of Occupational Health (Key Laboratory of Electromagnetic Radiation Protection, Ministry of Education), Third Military Medical University, Chongqing 400038, China.
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Potential Impacts of Industrialization on Coastal Fresh Groundwater Resources in Bangladesh. SUSTAINABILITY 2022. [DOI: 10.3390/su14148704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Bangladesh is overly dependent on groundwater and the demand in the near future is expected to increase, as the country is experiencing rapid development and industrial growth. This study assesses the prospect and sustainability of groundwater in Mirsharai Upazila, Chattogram, where a large industrial area, namely ‘Bangabandhu Sheikh Mujib Shilpa Nagar (BSMSN)’, is taking shape. The physical aquifer system was characterized and groundwater quality was mapped. There is one thick aquifer in the northernmost part of the upazila, which splits into three separate aquifers in the south. Water quality indexing suggests that the deep (>130 m) groundwater throughout upazila is good (n = 5) to excellent (n = 18), while the shallow groundwater is mostly poor to unsuitable for both drinking and irrigation purposes. Because of the close proximity to the sea and the presence of thick clays above the deep freshwater aquifer in the BSMSN area, heavy industrial abstraction poses a threat to the lateral intrusion of seawater and land subsidence. Even a small subsidence in the project area at only a couple of meters above sea level would jeopardize the entire project. This study recommends limiting the use of the deep fresh groundwater for the current population of the upazila.
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Inhibitory Effect of CUSTOS, a Formulated Allium-Based Extract, on the Growth of Some Selected Plant Pathogens. INTERNATIONAL JOURNAL OF PLANT BIOLOGY 2022. [DOI: 10.3390/ijpb13020006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Plants are in intimate association with a great diversity of pathogenic and mutualistic microbes that use host plants for proliferation. Plants, in turn, have evolved mechanisms that are contingent upon their innate immune system to resist perceived biotic stresses. The objective of this work is to determine the antimicrobial properties of an allium-based antimicrobial formulation named CUSTOS on the growth of plant pathogenic microorganisms such as fungi, oomycetes, and bacteria. Two anthracnose-related species of the fungal genus Colletotrichum, Colletotrichum gloeosporioides, the oomycete Phytophthora cactorum, and the bacterium Xanthomonas fragariae associated with strawberry plants were tested in vitro. Furthermore, two fungi Alternaria dauci and Botrytis cinerea, associated with carrot plants, were tested in planta. CUSTOS inhibited the growth of all plant pathogens tested. We found that both curative and preventive planta treatments with CUSTOS inhibited the growth of Alternaria dauci and Botrytis cinerea in carrots. Furthermore, the differential expression levels of the PR 10 genes were correlated with the magnitude of infection. We also found that the field application of CUSTOS on strawberry plants results in a reduction of fungal pathogens on strawberry fruits stored under refrigeration. In summary, CUSTOS may induce pathogen resistance in fruit and vegetable plants and can be used as both a curative and a preventive against rotting and disease.
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Diffusion of Disaster-Preparedness Information by Hearing from Early Adopters to Late Adopters in Coastal Bangladesh. SUSTAINABILITY 2022. [DOI: 10.3390/su14073897] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
The successful social implementation of a rainwater-harvesting tank can save millions of people in coastal Bangladesh from drinking saline water and health risks. However, previous studies have shown that several potentially effective, innovative disaster-preventive technologies failed to disseminate even after proactive promotional campaigns. People at risk worry about adopting innovative preventive measures because of the uncertainties attached to the new technology, such as its merits, cost, maintenance, durability, social acceptance, etc. Instead of mass media, people rely on social networks to obtain trusted, verified, and personal information. Hearing plays an important role, through which information diffuses from pioneer adopters to late adopters or potential adopters across settlements, starting from the village to district to region. Unlike conventional studies, limited to understanding the regional dimension of diffusion, this study investigated how the information diffuses from pioneer adopters to potential adopters at both the macro-level (e.g., districts, subdistricts, and towns) and micro-level (e.g., villages and neighborhoods). This study was based on field surveys through interviewing 196 innovative rainwater-tank adopters from 30 villages and communities in two subdistricts in coastal Bangladesh. We found that the macro-level pioneer adopters played a critical role in diffusing awareness knowledge, through which people in new villages, neighborhoods, and sub-districts, where mass media and change agents failed to reach, became aware of the existence of the innovative measure. However, macro-adapters alone failed to disseminate the innovation further, as the local communities intend to pay to heed the suggestions and experiences of the local (micro) pioneer adopters to understand the principle and how-to knowledge of the innovation. Information is diffused in the villages and neighborhoods through local pioneer adopters through direct, intimate personal contacts.
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He Z, Zhang Y, Zhang H, Zhou C, Ma Q, Deng P, Lu M, Mou Z, Lin M, Yang L, Li Y, Yue Y, Pi H, Lu Y, He M, Zhang L, Chen C, Zhou Z, Yu Z. NAC antagonizes arsenic-induced neurotoxicity through TMEM179 by inhibiting oxidative stress in Oli-neu cells. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 223:112554. [PMID: 34332247 DOI: 10.1016/j.ecoenv.2021.112554] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 07/20/2021] [Accepted: 07/21/2021] [Indexed: 06/13/2023]
Abstract
Arsenic is one of the most common environmental pollutants. Neurotoxicity induced by arsenic has become a major public health concern. However, the effects of arsenic-induced neurotoxicity in the brain and the underlying molecular mechanisms are not well understood. N-acetyl-cysteine (NAC) is a thiol-based antioxidant that can antagonize heavy metal-induced neurotoxicity by scavenging reactive oxygen species (ROS). Here, we used the mouse oligodendrocyte precursor cell (OPC) line Oli-neu to explore the neurotoxic effects of arsenic and the protective effects of NAC. We found that arsenic exposure decreased cell viability, increased oxidative stress, caused mitochondrial dysfunction, and led to apoptosis of Oli-neu cells. Furthermore, we revealed that NAC treatment reversed these neurotoxic effects of arsenic. TMEM179, a key membrane protein, was found highly expressed in OPCs and to be an important factor in maintaining mitochondrial functions. We found that TMEM179 played a critical role in mediating the neurotoxic effects of arsenic and the protective role of NAC. PKCβ is a downstream factor through which TMEM179 regulates the expression of apoptosis-related proteins. This study improves our understanding of the neurotoxic effects and mechanisms of arsenic exposure and the protective effects of NAC. It also identifies a potential molecular target, TMEM179, for the treatment of arsenic-induced neurotoxicity.
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Affiliation(s)
- Zhixin He
- Department of Occupational Health, Army Medical University, 400038, Chongqing, People's Republic of China
| | - Yajing Zhang
- School of Medicine, Guangxi University, 530004, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Huijie Zhang
- School of Medicine, Guangxi University, 530004, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Chao Zhou
- Department of Occupational Health, Army Medical University, 400038, Chongqing, People's Republic of China
| | - Qinlong Ma
- Department of Occupational Health, Army Medical University, 400038, Chongqing, People's Republic of China
| | - Ping Deng
- Department of Occupational Health, Army Medical University, 400038, Chongqing, People's Republic of China
| | - Muxue Lu
- School of Medicine, Guangxi University, 530004, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Zhenlin Mou
- School of Medicine, Guangxi University, 530004, Nanning, Guangxi Zhuang Autonomous Region, China
| | - Min Lin
- Department of Occupational Health, Army Medical University, 400038, Chongqing, People's Republic of China
| | - Lingling Yang
- Department of Occupational Health, Army Medical University, 400038, Chongqing, People's Republic of China
| | - Yanqi Li
- Department of Occupational Health, Army Medical University, 400038, Chongqing, People's Republic of China
| | - Yang Yue
- Department of Occupational Health, Army Medical University, 400038, Chongqing, People's Republic of China
| | - Huifeng Pi
- Department of Occupational Health, Army Medical University, 400038, Chongqing, People's Republic of China
| | - Yonghui Lu
- Department of Occupational Health, Army Medical University, 400038, Chongqing, People's Republic of China
| | - Mindi He
- Department of Occupational Health, Army Medical University, 400038, Chongqing, People's Republic of China
| | - Lei Zhang
- Department of Occupational Health, Army Medical University, 400038, Chongqing, People's Republic of China
| | - Chunhai Chen
- Department of Occupational Health, Army Medical University, 400038, Chongqing, People's Republic of China.
| | - Zhou Zhou
- Department of Environmental Medicine, School of Public Health, and Department of Emergency Medicine, First Affiliated Hospital, School of Medicine, Zhejiang University, 310058 Hangzhou, People's Republic of China.
| | - Zhengping Yu
- Department of Occupational Health, Army Medical University, 400038, Chongqing, People's Republic of China.
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Amster E. Public health impact of coal-fired power plants: a critical systematic review of the epidemiological literature. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2021; 31:558-580. [PMID: 31617747 DOI: 10.1080/09603123.2019.1674256] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 09/25/2019] [Indexed: 06/10/2023]
Abstract
Coal-based energy production is the most utilized method of electricity production worldwide and releases the highest concentration of gaseous, particulate, and metallic pollutants. Toxicological research has shown that coal combustion by-products are carcinogens, endocrine disruptors, and cardiorespiratory toxins. This article aims to systematically review the epidemiological literature on the impact emissions from coal-based power production has on morbidity and mortality worldwide. Two thousand one hundred and fifty-two articles were retrieved based on search criteria. Word search of abstract and article text filtered the results to 95 articles. Forty articles were included after screening. The literature indicates a significant adverse effect from particulate matter and polyaromatic hydrocarbon emissions on morbidity and mortality. There is a lack of consistency of exposure assessment and inadequate control of significant potential confounders such as social economic status. Future research should focus on improving exposure assessment models, specifically source-apportionment and geographic information system methods to model power plant-specific emissions.
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Affiliation(s)
- Eric Amster
- Faculty of Social Welfare and Health Sciences, School of Public Health, University of Haifa, Haifa, Israel
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Asma KM, Kotani K. Salinity and Water-Related Disease Risk in Coastal Bangladesh. ECOHEALTH 2021; 18:61-75. [PMID: 34002335 DOI: 10.1007/s10393-021-01517-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 01/19/2021] [Accepted: 02/17/2021] [Indexed: 06/12/2023]
Abstract
An increase in surface and ground-water salinity due to climate change is reported to have become a great threat to the health of coastal inhabitants in Bangladesh. However, little is known about how much such salinity affects the risk of water-related diseases and how such risk can be mitigated in the field. This research examines the association between water-related diseases and coastal salinity along with sociodemographic and anthropometric factors. We conduct questionnaire surveys with 527 households: 273 subjects from the non-salinity and 254 subjects from the salinity rural coastal areas of Bangladesh. The logistic regression analysis demonstrates that the probability of suffering from water-borne, water-washed and water-related diseases are 8%, 14% and 11% higher in the salinity areas than in the non-salinity areas, respectively. However, it is also identified that people who consume rainwater as a drinking source even in the salinity areas have less chances and people who belong to "underweight body mass index" have more chances of being affected by water-related diseases. Overall, the results suggest that the long-term reservation of rainwater and addressing community-based food security & nutrition programs shall be effective countermeasures to reduce the risk of health problems in the coastal population and to sustain their lives even under the threat of land salinity.
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Affiliation(s)
- Khatun Mst Asma
- School of Economics and Management, Kochi University of Technology, Kochi, Japan
- Department of Agricultural and Applied Statistics, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Koji Kotani
- School of Economics and Management, Kochi University of Technology, Kochi, Japan.
- Research Institute for Future Design, Kochi University of Technology, Kochi, Japan.
- Urban Institute, Kyusyu University, Fukuoka, Japan.
- College of Business, Rikkyo University, Tokyo, Japan.
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Afrad MSI, Monir MB, Haque ME, Barau AA, Haque MM. Impact of industrial effluent on water, soil and Rice production in Bangladesh: a case of Turag River Bank. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2020; 18:825-834. [PMID: 33312605 PMCID: PMC7721837 DOI: 10.1007/s40201-020-00506-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 06/22/2020] [Indexed: 05/26/2023]
Abstract
PURPOSE It is almost a common practice in Bangladesh to indiscriminately discharge effluent into the nearby wetlands, crop fields and water bodies. So, contamination occurs from water to food chain through soil and field crops. This study therefore assesses the impact of industrial effluent on water, soil and rice production taking Turag river bank as a case study, which located in the most thickly industrialized area of Bangladesh. METHODS The descriptive and diagnostic research design was used in the present study. Eighty farmers were selected as respondents using proportionate stratified random sampling technique. The data were collected using an interview schedule. Impact of industrial effluent contamination was measured based on the extent of change that occurred in soil and water quality, level of insect infestation and, quantity and quality of rice before and after the establishment of industries. Similarly, water samples were collected to examine water quality parameters. Descriptive statistics such as frequency and percent, mean and standard deviation were used to describe and interpret the data, while paired t-test was used to test significant difference. RESULTS The results revealed that the quality of water and soil, and quality and quantity of rice have differed significantly after the establishment of industries. Surface water was mostly affected (t-value 90.25). Almost all of the respondents (97.5%) stated that there was high insect infestation after the establishment of industries which negatively affects rice production. The water quality parameters test revealed that temperature, total dissolved salts, pH and salinity were within the acceptable limits, while electrical conductivity and heavy metals (Cd, Pb and Ni) were above the acceptable limits. The majority of respondents (77.6%) had favourable to highly favourable perception on the negative impact of industrial effluent contamination on rice production. The major problems faced due to the industrial effluent contamination were pollution, low fertility, increase attack of insect, dermal diseases and low yield. CONCLUSIONS The establishment of industries has quiet negatively altered soil, water and rice production as buttressed by the evidence based viewpoints of the respondents. Proper treatment of industrial effluent and implementation of environmental act would certainly help overcome the problem.
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Affiliation(s)
- Md Safiul Islam Afrad
- Department of Agricultural Extension and Rural Development, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706 Bangladesh
| | - Mostakima Binta Monir
- Department of Agricultural Extension and Rural Development, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706 Bangladesh
| | - Md Enamul Haque
- Department of Agricultural Extension and Rural Development, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706 Bangladesh
| | - Aliyu Akilu Barau
- Department of Agricultural Extension and Rural Development, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706 Bangladesh
- Department of Agricultural Extension and Rural Development, Usmanu Danfodiyo University, Sokoto, Nigeria
| | - Md Manjurul Haque
- Department of Environmental Science, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, 1706 Bangladesh
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Abdullah MIC, Sah ASRM, Haris H. Geoaccumulation Index and Enrichment Factor of Arsenic in Surface Sediment of Bukit Merah Reservoir, Malaysia. Trop Life Sci Res 2020; 31:109-125. [PMID: 33214859 PMCID: PMC7652249 DOI: 10.21315/tlsr2020.31.3.8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
An investigation study was conducted in Bukit Merah Reservoir (BMR) for the assessment of arsenic concentration in the surface sediment in 23 sampling stations. The sediment samples were digested and analysed for arsenic using Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES). Sediment parameters such as pH (4.42 ± 0.71), redox potential (121.77 ± 42.45 mV), conductivity (205.7 ± 64.07 μS cm−1) and organic matter (25.35 ± 9.34%) were also examined. The main objectives of this study are to determine the arsenic distribution and concentration and at the same time to assess the enrichment of arsenic using the geoaccumulation index (Igeo) and enrichment factor (EF). This study shows the total arsenic concentration in the surface sediment of BMR is 4.302 ± 2.43 mg kg−1 and found to be below the threshold value of Canadian Interim Sediment Quality Guidelines (ISQG). High arsenic concentration is recorded near the southern part of the lake where anthropogenic activities are prevalent. Based on Igeo, 13% of sampling stations are categorised as moderately polluted, 52.2% as unpolluted to moderately polluted and the rest is categorised as unpolluted. EF shows 78.3% stations are classified as extremely high enrichment and the rest as very high enrichment. This finding provides important information on the status of arsenic contamination in BMR and creating awareness concerning the conservation and management of the reservoir in the future.
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Affiliation(s)
| | | | - Hazzeman Haris
- School of Biological Sciences, Universiti Sains Malaysia, 11800 USM Pulau Pinang, Malaysia
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12
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Bustaffa E, Gorini F, Bianchi F, Minichilli F. Factors Affecting Arsenic Methylation in Contaminated Italian Areas. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17145226. [PMID: 32698366 PMCID: PMC7399830 DOI: 10.3390/ijerph17145226] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/13/2020] [Accepted: 07/16/2020] [Indexed: 01/01/2023]
Abstract
Chronic arsenic (As) exposure is a critical public health issue. The As metabolism can be influenced by many factors. The objective of this study is to verify if these factors influence As metabolism in four Italian areas affected by As pollution. Descriptive analyses were conducted on 271 subjects aged 20-49 in order to assess the effect of each factor considered on As methylation. Percentages of metabolites of As in urine, primary and secondary methylation indexes were calculated as indicators for metabolic capacity. The results indicate that women have a better methylation capacity (MC) than men, and drinking As-contaminated water from public aqueducts is associated with poorer MC, especially in areas with natural As pollution. In areas with anthropogenic As pollution occupational exposure is associated with a higher MC while smoking with a poorer MC. Dietary habits and genetic characteristics are probably implicated in As metabolism. BMI, alcohol consumption and polymorphism of the AS3MT gene seem not to influence As MC. Arsenic metabolism may be affected by various factors and in order to achieve a comprehensive risk assessment of As-associated disease, it is crucial to understand how these factors contribute to differences in As metabolism.
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Barreto MSC, Elzinga EJ, Alleoni LRF. Hausmannite as potential As(V) filter. Macroscopic and spectroscopic study of As(V) adsorption and desorption by citric acid. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 262:114196. [PMID: 32163805 DOI: 10.1016/j.envpol.2020.114196] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 02/07/2020] [Accepted: 02/14/2020] [Indexed: 06/10/2023]
Abstract
Arsenic (As) is a toxic element that leads the list of human health threats and is one of the priority contaminants in soil and water. In order to remove As(V) and/or reduce its mobility, filters and amendments with high affinity for As(V) adsorption are used in drinking water treatment or directly applied to the soil, thereby promoting its immobilization. Hausmannite and hematite were compared by in-situ Attenuated Total Reflection - Fourier Transform Infrared (ATR-FTIR) spectroscopy and batch experiments for evaluating As(V) adsorption and sequential desorption by citrate. The pH and contact time were used as variables. Hausmanite adsorbed more As(V) than hematite. As(V) was adsorbed on the mineral surface of simultaneously inner- and outer-sphere species. Inner-sphere bidentate complex form preferentially at high pH, early adsorption time and low surface loading, while the monodentate species should be responsible to increase total As(V) adsorption at low pH, later adsorption kinetics and higher As(V) surface loading. Citrate was effective in causing As(V) desorption at higher citric acid concentrations and higher pH values. After a long time of incubation, the neogenesis of a manganite by hausmnannite oxidation was observed. Concomitantly, less As(V) was desorbed by citrate desorption, even in the presence of high citric acid concentrations. Hausmannite was an efficient mineral for As(V) removal and immobilization.
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Affiliation(s)
- Matheus Sampaio C Barreto
- Department of Soil Science, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba, SP, Brazil; Department of Earth & Environmental Sciences, Rutgers University, Newark, NJ, USA.
| | - Evert J Elzinga
- Department of Earth & Environmental Sciences, Rutgers University, Newark, NJ, USA
| | - Luís Reynaldo F Alleoni
- Department of Soil Science, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba, SP, Brazil
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14
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Saleh S, Ahmad K, Mohd Yunus NZ, Hezmi MA. Evaluating the toxicity of polyurethane during marine clay stabilisation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:21252-21259. [PMID: 32266626 DOI: 10.1007/s11356-020-08549-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 03/23/2020] [Indexed: 06/11/2023]
Abstract
In civil engineering, many geotechnical and forensic projects employ polyurethane (PU) for ground improvement, and the results have shown to be effective in terms of time and cost savings. However, similar to many other chemical stabilisers, the use of PU for soil stabilisation may have environmental repercussions. Therefore, this paper utilised a toxicity characteristic leaching procedure (TCLP) to investigate the potential for ground contamination resulting from the application of PU for the stabilisation of marine clay. Furthermore, the hazardousness of PU during the stabilisation of marine clay was investigated by testing its reactivity, ignitability, corrosivity and physical properties. The results reveal that the quantity of heavy metals present in PU is far below the regulatory limits. The results further confirm that PU is odourless and non-corrosive and that it is non-cyanide and non-sulphide-bearing. However, PU is capable of igniting. Overall, the potential application of PU for ground improvement is promising due to its environmental friendliness.
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Affiliation(s)
- Samaila Saleh
- School of Civil Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia.
- Department of Civil Engineering, Hassan Usman Katsina Polytechnic, Katsina, Nigeria.
| | - Kamarudin Ahmad
- School of Civil Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
| | | | - Muhammad Azril Hezmi
- School of Civil Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
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15
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Aminul Haque M, Chowdhury RA, Islam S, Bhuiyan MS, Ragib AB. Sustainability assessment of arsenic-iron bearing groundwater treatment soil mixed mortar in developing countries, Bangladesh. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2020; 261:110257. [PMID: 32148318 DOI: 10.1016/j.jenvman.2020.110257] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/25/2020] [Accepted: 02/09/2020] [Indexed: 06/10/2023]
Abstract
The open disposal of groundwater treated soil containing arsenic (As) and iron (Fe) is a critical environmental issue in developing countries like Bangladesh. The current study attempts to use the arsenic-iron soil (AIS) as partial replacement of aggregate for preparing the sustainable solid mortar composite. Four dosages (2.5-10%) of AIS were applied as the substitution of fine aggregate for finding the optimum quantity of AIS, justifying by strength and nominal leaching content of As and Fe in pH solution 4.0 and 7.0 and curing temperatures of 25, 30, and 35 °C. Also, the external surfaces of solidified matrices were modified with cement grouting solution and cement plaster to resist the migration of concerned contaminants to curing media. The analytical compressive and flexural strength results showed that the solid mortars blended with 2.5 and 5% AIS obtained over 80% of the control specimens throughout the testing ages. Moreover, the study found that 5% AIS bearing hardened composition with exterior cement plaster exhibited the releasing contents of As and Fe below the drinking water standard in both pH solutions and adopted three curing temperatures, which is safe as well as economical to use as a construction material. The scanning electron microscopy (SEM) observations and energy dispersive spectroscopy (EDS) analysis also demonstrated the encapsulation patterns of target contaminants by forming hard microstructures of calcium silicate hydrate, ettringite and calcium-arsenic compounds. The outcomes of the study showed the potentiality of recycling the contaminated groundwater treatment soil as building materials in an eco-friendly way.
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Affiliation(s)
- M Aminul Haque
- Department of Civil Engineering, Leading University, Kamal Bazar, Sylhet, 3112, Bangladesh; Department of Civil Engineering, Shanghai Jiao Tong University, Shanghai, 200240, PR China.
| | - Rakib Ahmed Chowdhury
- Department of Civil and Environmental Engineering, Shahjalal University of Science and Technology, Sylhet, 3114, Bangladesh
| | - Shriful Islam
- Department of Civil and Environmental Engineering, Shahjalal University of Science and Technology, Sylhet, 3114, Bangladesh
| | | | - Ahmed Bin Ragib
- Department of Civil Engineering, Leading University, Kamal Bazar, Sylhet, 3112, Bangladesh
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16
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Yoshinaga-Sakurai K, Shinde R, Rodriguez M, Rosen BP, El-Hage N. Comparative Cytotoxicity of Inorganic Arsenite and Methylarsenite in Human Brain Cells. ACS Chem Neurosci 2020; 11:743-751. [PMID: 31991084 DOI: 10.1021/acschemneuro.9b00653] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
The overall goal of this study is to elucidate the potential effect(s) of arsenic on a variety of human brain cells. Arsenic is the most pervasive Group A human environmental carcinogen. Long-term exposure to arsenic is associated with human diseases including cancer, cardiovascular disease, and diabetes. More immediate are the health effects on neurological development and associated disorders in infants and children exposed to arsenic in utero. Arsenic is metabolized in various organs and tissues into more toxic methylated species, including methylarsenite (MAs(III)), so the question arises whether the methylate species are responsible for the neurological effects of arsenic. Arsenic enters the brain through the blood-brain barrier and produces toxicity in the brain microvascular endothelial cells, glia (astrocytes and microglia), and neurons. In this study, we first assessed the toxicity in different types of brain cells exposed to either inorganic trivalent As(III) or MAs(III) using both morphological and cytotoxicity cell-based analysis. Second, we determined the methylation of arsenicals and the expression levels of the methylation enzyme, As(III) S-adenosylmethionine (SAM) methyltransferase (AS3MT), in several types of brain cells. We showed that the toxicity to neurons of MAs(III) was significantly higher than that of As(III). Interestingly, the differences in cytotoxicity between cell types was not due to expression of AS3MT, as this was expressed in neurons and glia but not in endothelial cells. These results support our hypothesis that MAs(III) is the likely physiological neurotoxin rather than inorganic arsenic species.
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17
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Celino-Brady FT, Lerner DT, Seale AP. Experimental Approaches for Characterizing the Endocrine-Disrupting Effects of Environmental Chemicals in Fish. Front Endocrinol (Lausanne) 2020; 11:619361. [PMID: 33716955 PMCID: PMC7947849 DOI: 10.3389/fendo.2020.619361] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 12/30/2020] [Indexed: 12/22/2022] Open
Abstract
Increasing industrial and agricultural activities have led to a disturbing increase of pollutant discharges into the environment. Most of these pollutants can induce short-term, sustained or delayed impacts on developmental, physiological, and behavioral processes that are often regulated by the endocrine system in vertebrates, including fish, thus they are termed endocrine-disrupting chemicals (EDCs). Physiological impacts resulting from the exposure of these vertebrates to EDCs include abnormalities in growth and reproductive development, as many of the prevalent chemicals are capable of binding the receptors to sex steroid hormones. The approaches employed to investigate the action and impact of EDCs is largely dependent on the specific life history and habitat of each species, and the type of chemical that organisms are exposed to. Aquatic vertebrates, such as fish, are among the first organisms to be affected by waterborne EDCs, an attribute that has justified their wide-spread use as sentinel species. Many fish species are exposed to these chemicals in the wild, for either short or prolonged periods as larvae, adults, or both, thus, studies are typically designed to focus on either acute or chronic exposure at distinct developmental stages. The aim of this review is to provide an overview of the approaches and experimental methods commonly used to characterize the effects of some of the environmentally prevalent and emerging EDCs, including 17 α-ethinylestradiol, nonylphenol, BPA, phthalates, and arsenic; and the pervasive and potential carriers of EDCs, microplastics, on reproduction and growth. In vivo and in vitro studies are designed and employed to elucidate the direct effects of EDCs at the organismal and cellular levels, respectively. In silico approaches, on the other hand, comprise computational methods that have been more recently applied with the potential to replace extensive in vitro screening of EDCs. These approaches are discussed in light of model species, age and duration of EDC exposure.
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Affiliation(s)
- Fritzie T. Celino-Brady
- Department of Human Nutrition, Food and Animal Sciences, University of Hawai’i at Mānoa, Honolulu, HI, United States
| | - Darren T. Lerner
- University of Hawai’i Sea Grant College Program, University of Hawai’i at Mānoa, Honolulu, HI, United States
| | - Andre P. Seale
- Department of Human Nutrition, Food and Animal Sciences, University of Hawai’i at Mānoa, Honolulu, HI, United States
- *Correspondence: Andre P. Seale,
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18
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Biosorption of Arsenic: An Emerging Eco-technology of Arsenic Detoxification in Drinking Water. ADVANCES IN WATER SECURITY 2020. [DOI: 10.1007/978-3-030-21258-2_9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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19
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Li Z, Yang Q, Yang Y, Xie C, Ma H. Hydrogeochemical controls on arsenic contamination potential and health threat in an intensive agricultural area, northern China. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 256:113455. [PMID: 31706755 DOI: 10.1016/j.envpol.2019.113455] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 10/19/2019] [Accepted: 10/21/2019] [Indexed: 05/27/2023]
Abstract
The contamination of ground water with arsenic is a great public health concern. This paper discusses the possible formation mechanism of high As groundwater; identify the main influences of natural and anthropogenic factors on As occurrence in groundwater; and finally estimates As-induced potential health hazards in an intensive agricultural region, Datong Basin (Northern China). Our findings indicate that the predominant controlling factors of As in groundwater can be divided into natural factors and anthropogenic activities. Natural factors can be classified as natural potential source of As, environmental geological characteristics and hydrochemical conditions; anthropogenic activities are manifested in industrial coal mining, domestic coal burning, agricultural irrigation return flow and excessive application of fertilizers, and groundwater exploitation. Microbial and/or chemical reduction desorption of arsenate from Fe-oxide/hydroxide and/or clay minerals, As-bearing Fe-oxide/hydroxide reduction coupled with sulfate reduction, and competition with phosphorus are postulated to be the major process dominating As enrichment in the alkaline and anoxic groundwater. In addition, age-dependent human health risk assessment (HHRS) was performed, and high risk values reveal a high toxic and carcinogenic risk of As contaminate for population who is subject to the continuous and chronic exposure to elevated As.
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Affiliation(s)
- Zijun Li
- Key Laboratory of Groundwater Resources and Environment Ministry of Education, Jilin University, Changchun 130021, PR China
| | - Qingchun Yang
- Key Laboratory of Groundwater Resources and Environment Ministry of Education, Jilin University, Changchun 130021, PR China.
| | - Yueso Yang
- Key Lab of Eco-restoration of Regional Contaminated Environment Ministry of Education, Shenyang University, Shenyang 110044, PR China
| | - Chuan Xie
- Geothermal Institute of Hydrological Engineering Geological Survey, Shijiazhuang, 050000, PR China
| | - Honhyun Ma
- Key Laboratory for Groundwater and Ecology in Arid and Semi-arid Areas, Xi'an Center of Geological Survey, CGS, Xi'an, 710054, PR China
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20
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Patel AK, Das N, Kumar M. Multilayer arsenic mobilization and multimetal co-enrichment in the alluvium (Brahmaputra) plains of India: A tale of redox domination along the depth. CHEMOSPHERE 2019; 224:140-150. [PMID: 30818192 DOI: 10.1016/j.chemosphere.2019.02.097] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 02/12/2019] [Accepted: 02/15/2019] [Indexed: 05/28/2023]
Abstract
The study attempts to understand arsenic (As) mobilization in a shallow aquifer with depth variation while focusing on the potential co-occurrence of As with priority metals (zinc and lead), using a pilot scale multilevel groundwater monitoring system (MGWS). Groundwater samples (n = 72) were collected bi-weekly (every 15 days) from the multilevel sampler (4.6, 9.2 and 13.8 m depths), installed at Tezpur, Sonitpur district of Brahmaputra floodplain (BFP), Assam, India, for a period of 1 year (August 2013-July 2014). Both geogenic and anthropogenic influences were found to affect the studied unconfined aquifer. At 4.6 m, weathering dominated due to interaction with CO2 and infiltrating water. Prevalent high pH (7.9-8.6) at all three depths in association with strong oxidizing condition (at 4.6 m) during the drier months seem to play a crucial role in desorption based As release. Multivariate analyses revealed that redox potential (ORP) remains the primary controller of As release at all three depths. With depth, stronger anoxic conditions resulted in the dominance of reductive hydrolysis leading to a co-occurrence scenario of As (max 4.6 μgL-1) with Zn (max 2514 μgL-1) and Pb (max 740 μL-1) with influences of anthropogenic modes of activities like agriculture and dry deposition from a brick kiln. Multi-element enrichment is an emerging concern but the bigger picture would be to understand the peculiarities of individual aquifers, as a generalization can lead to missing a ton of information. In this regard, long-term multilevel monitoring can help in the predictive understanding of the vertical stratification and co-occurrences of multi-metals that can subsequently be applied for water production at the safer depths.
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Affiliation(s)
- Arbind Kumar Patel
- Department of Environmental Science, Tezpur University, Assam, 784-021, India
| | - Nilotpal Das
- Department of Civil Engineering, Indian Institute of Technology Guwahati, Assam, 781-039, India
| | - Manish Kumar
- Discipline of Earth Science, Indian Institute of Technology Gandhinagar, Gujarat, 382-355, India.
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21
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Ourshalimian S, Naser AM, Rahman M, Doza S, Stowell J, Narayan KMV, Shamsudduha M, Gribble MO. Arsenic and fasting blood glucose in the context of other drinking water chemicals: a cross-sectional study in Bangladesh. ENVIRONMENTAL RESEARCH 2019; 172:249-257. [PMID: 30818234 PMCID: PMC6744838 DOI: 10.1016/j.envres.2018.12.049] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 12/15/2018] [Accepted: 12/20/2018] [Indexed: 05/25/2023]
Abstract
GOAL The goal of this study was to evaluate the association between groundwater arsenic and fasting blood glucose in the context of other groundwater chemicals, in Bangladesh. METHODS Fasting blood glucose, gender, body mass index, sociodemographic variables, and diabetes medication use were measured among adults ≥ 35 years of age (n = 6587) participating in the Bangladesh Demographic and Health Survey (BDHS) 2011. Groundwater chemicals in 3534 well water samples were measured in the British Geological Survey (BGS) and Department of Public Health Engineering (DPHE) 1998-99 survey. We assigned the nearest BGS-DPHE well's chemical exposure to each BDHS participant. We used survey-estimation linear regression methods to model natural log-transformed fasting blood glucose, among those using groundwater as their primary drinking-water source, as a function of groundwater arsenic. We considered possible interactions between categorical arsenic exposure and each of 14 other groundwater chemicals dichotomized at their medians. The chemicals considered as possible effect modifiers included: aluminum, barium, calcium, iron, potassium, lithium, magnesium, manganese, sodium, phosphorous, silicon, sulfate, strontium, and zinc. RESULTS Compared to persons exposed to groundwater arsenic ≤ 10 μg/L, the adjusted geometric mean ratio (GMR) of fasting blood glucose was 1.01 (95% confidence interval: 0.98, 1.04) for individuals exposed to groundwater arsenic concentrations > 10 μg/L and ≤ 50 μg/L, and was 1.01 (0.97, 1.03) for those with > 50 μg/L arsenic. There were no Bonferroni-significant interactions with other chemicals, after accounting for the large number of chemicals tested as modifiers. CONCLUSIONS In our analysis of groundwater chemistry data from 1998/99 and fasting blood glucose outcomes measured in nearby populations approximately a decade later, there was no overall association of fasting blood glucose with nearby historical groundwater arsenic. This null association was not significantly modified by the historical levels of other groundwater chemicals. These null results are inconclusive regarding shorter-term potential toxicity of arsenic for glucose regulation, if there are differences between the historical concentrations measured in nearby groundwater and the actual drinking water chemical exposures in the population during the etiologically relevant period for more acute phenotypes like fasting blood glucose. Drinking water supply-relevant, longitudinal exposure assessment with less measurement error is needed to more precisely evaluate the joint impacts of drinking water chemicals and establish if there is a sensitive time window for glycemic outcomes.
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Affiliation(s)
| | - Abu Mohd Naser
- Department of Environmental Health, Emory University, Atlanta, GA, USA
| | - Mahbubur Rahman
- International Centre for Diarrhoeal Disease Research, Bangladesh, GPO Box 128, Dhaka 1000, Bangladesh
| | - Solaiman Doza
- International Centre for Diarrhoeal Disease Research, Bangladesh, GPO Box 128, Dhaka 1000, Bangladesh
| | - Jennifer Stowell
- Department of Environmental Health, Emory University, Atlanta, GA, USA
| | - K M Venkat Narayan
- Emory Global Diabetes Research Center, Hubert Department of Global Health, Emory University, Atlanta, GA, USA
| | - Mohammad Shamsudduha
- Institute for Risk and Disaster Reduction, University College London, London, UK
| | - Matthew O Gribble
- Department of Environmental Health, Emory University, Atlanta, GA, USA; Department of Epidemiology, Emory University, Atlanta, GA, USA.
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Yang K, Xun P, Carnethon M, Carson AP, Lu L, Zhu J, He K. Low to moderate toenail arsenic levels in young adulthood and incidence of diabetes later in life: findings from the CARDIA Trace Element study. ENVIRONMENTAL RESEARCH 2019; 171:321-327. [PMID: 30711733 PMCID: PMC6398992 DOI: 10.1016/j.envres.2019.01.035] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 01/20/2019] [Accepted: 01/24/2019] [Indexed: 05/09/2023]
Abstract
Some studies suggest a positive association between arsenic exposure and risk of diabetes. However, the findings are inconsistent and inconclusive, particularly at a low to moderate arsenic exposure level, and longitudinal data are lacking. We examined toenail arsenic at low to moderate level in young adulthood in relation to incidence of diabetes later in life. This study included 4102 black and white participants aged 20-32 at baseline (1987-88) who completed up to 7 follow-up exams through 2015-16. Toenail arsenic was measured by collision-cell inductively-coupled-plasma mass-spectrometry. Incident diabetes was defined as fasting glucose ≥ 126 mg/dL, non-fasting glucose ≥ 200 mg/dL, 2-h postchallenge glucose ≥ 200 mg/dL, hemoglobin A1c ≥ 6.5%, or use of glucose-lowering medications. Cox proportional hazards model and generalized estimating equations (GEEs) were used to determine the associations of quintiles of toenail arsenic with incident diabetes and other metabolic parameters. The median (inter-quartile range) toenail arsenic level was 0.097 (0.065-0.150) ppm in this study. During the follow-up period, 599 incident cases of diabetes were identified. After adjustment for potential confounders, the hazards ratio (95% confidence interval) was 0.96 (0.73, 1.27) (P for linear trend= 0.85) comparing the highest to the lowest quintile of toenail arsenic levels. No significant association was observed between toenail arsenic and levels of fasting glucose, insulin, homeostatic model assessment of insulin resistance, homeostatic model assessment of beta cell function, or C-reactive protein. The null associations persisted across subgroups of age, sex, race, and body mass index. Findings from this longitudinal study do not support the hypothesis that low to moderate toenail arsenic levels in young adulthood is associated with diabetes risk later in life.
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Affiliation(s)
- Kefeng Yang
- Department of Clinical Nutrition, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Nutrition, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Pengcheng Xun
- Department of Epidemiology and Biostatistics, School of Public Health-Bloomington, Indiana University, 1025 E. 7th Street, Bloomington, IN 47405, USA
| | - Mercedes Carnethon
- Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - April P Carson
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Liping Lu
- Department of Clinical Nutrition, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jie Zhu
- Department of Clinical Nutrition, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China; Department of Nutrition, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ka He
- Department of Epidemiology and Biostatistics, School of Public Health-Bloomington, Indiana University, 1025 E. 7th Street, Bloomington, IN 47405, USA.
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23
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German MS, Watkins TA, Chowdhury M, Chatterjee P, Rahman M, Seingheng H, SenGupta AK. Evidence of Economically Sustainable Village-Scale Microenterprises for Arsenic Remediation in Developing Countries. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:1078-1086. [PMID: 30620879 DOI: 10.1021/acs.est.8b02523] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Although unknown 25 years ago, natural arsenic contamination of groundwater affects over 50 countries and up to 200 million people. The economic viability was analyzed and modeled of eighty-eight community-based arsenic mitigation systems existing for up to 20 years in India and Bangladesh. The performances of three community-based arsenic mitigation systems that are ethnically different and separated across two different countries were monitored closely for 24 months of self-sustainable, long-term operation at WHO standards through local, paid caretakers. Based on data from the use of hybrid ion exchange materials (HIX-Nano) and the broad set of field operations, Monte Carlo simulations were used to explore the conditions required for self-sustainable operation and job creation in low-income communities (<$2/day/capita). The results from field data and cost modeling provided clear evidence of economic growth and job creation for systems managed by villagers' committee through collection of monthly tariffs. Ethnicity and religion did not have perceptible impacts on day-to-day operations or cumulative long-term revenue. The cost of the treatment technology (i.e., HIX-Nano) had minimal impact on the operational profitability, while number of customers and water delivery significantly affected profitability. Local employment generation with income significantly higher than poverty level was the most enduring outcome and led to enhanced sustainability.
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Affiliation(s)
- Michael S German
- Department of Civil and Environmental Engineering , Lehigh University , Bethlehem , Pennsylvania 18015 , United States
- WIST, Inc., Brighton , Massachusetts 75063 , United States
| | - Todd A Watkins
- Department of Economics , Lehigh University , Bethlehem , Pennsylvania 18015 , United States
| | | | | | - Mizan Rahman
- Drinkwell Bangladesh Ltd., Motijheel, Dhaka , 1000 , Bangladesh
| | - Hul Seingheng
- Institute of Technology of Cambodia , PO Box 86, Russian Federation Boulevard , Phnom Penh , 12100 , Cambodia
| | - Arup K SenGupta
- Department of Civil and Environmental Engineering , Lehigh University , Bethlehem , Pennsylvania 18015 , United States
- WIST, Inc., Brighton , Massachusetts 75063 , United States
- Society for Technology with a Human Face (STHF) , NGO , Kolkata , 700061 , India
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Cutaneous Malignancy due to Arsenicosis in Bangladesh: 12-Year Study in Tertiary Level Hospital. BIOMED RESEARCH INTERNATIONAL 2018; 2018:4678362. [PMID: 30643806 PMCID: PMC6311317 DOI: 10.1155/2018/4678362] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Accepted: 12/03/2018] [Indexed: 12/12/2022]
Abstract
Bangladesh is grappling with the largest mass poisoning of a population in the world due to contamination of drinking water with naturally occurring inorganic arsenic. It is estimated that 75 million people of 59 (out of 64) districts are at risk of drinking contaminated water with arsenic above 50μg/L. Long term exposure to arsenic causes cancers, including skin, lung, and bladder. This is a randomized prospective study to see the prevalence of skin cancer from arsenic affected area of Bangladesh, as well as their variation by geographical area, age, gender, location on the body, and socioeconomic conditions, in outpatient department of plastic surgery unit of Bangabandhu Sheikh Mujib Medical University (BSMMU). A total of 960 patients with skin cancers comprised of 528 males and 432 females were selected for the study from January 2004 to December 2015. In this 12-year study, we found squamous cell carcinoma, basal cell carcinoma, melanoma, and Merkel cell carcinoma to be associated with the ingestion of arsenic contaminated ground water. This is a reflection of a small part of the total national scenario of devastating result of arsenic mediated cancer in terms of skin malignancy. This study will help the future researchers who are contemplating to work on arsenic induced health problem.
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Islam MM, Karim MR, Zheng X, Li X. Heavy Metal and Metalloid Pollution of Soil, Water and Foods in Bangladesh: A Critical Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:E2825. [PMID: 30544988 PMCID: PMC6313774 DOI: 10.3390/ijerph15122825] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 11/30/2018] [Accepted: 12/07/2018] [Indexed: 11/16/2022]
Abstract
Bangladesh is a densely populated developing country. Both industrialization and geological sources have caused widespread heavy metal and metalloid pollution in Bangladesh, which is now posing substantial threats to the local people. In this review, we carried out one of the most exhaustive literature analyses on the current status of Bangladesh heavy metal and metalloid pollution, covering water, soil, and foods. Analysis showed that soils near high traffic and industrial areas contain high concentrations of heavy metals and metalloids. Agricultural land and vegetables in sewage-irrigated areas were also found to be heavy metal- and metalloid-contaminated. River water, sediment, and fish from the Buriganga, Turag, Shitalakhya, and Karnaphuli rivers are highly contaminated with cadmium (Cd), lead (Pb), and chromium (Cr). Particularly, groundwater arsenic (As) pollution associated with high geological background levels in Bangladesh is well reported and is hitherto the largest mass poisoning in the world. Overall, the contamination levels of heavy metals and metalloids vary among the cities, with industrial areas being most polluted. In all, this review provides a quantitative identification of the As, Pb, Cd, and Cr contamination hotspots in Bangladesh based on the literature, which may be useful to environmental restorationists and local policy makers.
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Affiliation(s)
- M Mominul Islam
- Key Laboratory for Agricultural Water Resources, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang 050021, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Md Rezaul Karim
- Department of Applied Nutrition and Food Technology, Islamic University, Kushtia 7003, Bangladesh.
| | - Xin Zheng
- Key Laboratory for Agricultural Water Resources, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang 050021, China.
| | - Xiaofang Li
- Key Laboratory for Agricultural Water Resources, Center for Agricultural Resources Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Shijiazhuang 050021, China.
- CMLR, Sustainable Minerals Institute, The University of Queensland, Brisbane, Queensland 4072, Australia.
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Arriaza B, Amarasiriwardena D, Standen V, Yáñez J, Van Hoesen J, Figueroa L. Living in poisoning environments: Invisible risks and human adaptation. Evol Anthropol 2018; 27:188-196. [PMID: 30369007 DOI: 10.1002/evan.21720] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 07/17/2018] [Accepted: 08/02/2018] [Indexed: 11/05/2022]
Abstract
This article describes the hidden natural chemical contaminants present in a unique desert environment and their health consequences on ancient populations. Currently, millions of people are affected worldwide by toxic elements such as arsenic. Using data gathered from Atacama Desert mummies, we discuss long-term exposure and biocultural adaptation to toxic elements. The rivers that bring life to the Atacama Desert are paradoxically laden with arsenic and other minerals that are invisible and tasteless. High intake of these toxic elements results in severe health and behavioral problems, and even death. We demonstrate that Inca colonies, from Camarones 9 site, were significantly affected by chemical contaminants in their food and water. It appears however, some modern-day Andean populations resist the elevated levels of arsenic exposure as a result of positive selection mediated via the arsenic methyltransferase enzyme and display more tolerance to high chemical doses. This article further debate the effects of natural pollution and biocultural adaptation of past populations.
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Affiliation(s)
- Bernardo Arriaza
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica, Chile
| | | | - Vivien Standen
- Departamento de Antropología, Universidad de Tarapacá, Arica, Chile
| | - Jorge Yáñez
- Departamento de Química Analítica e Inorgánica, Laboratorio de Trazas Elementales & Especiación (LABTRES), Facultad de Ciencias Químicas, Universidad de Concepción, Concepción, Chile
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Samaddar S, Okada N, Jiang X, Tatano H. Who are Pioneers of Disaster Preparedness? - Insights from Rainwater Harvesting Dissemination in Bangladesh. ENVIRONMENTAL MANAGEMENT 2018; 62:474-488. [PMID: 29947966 DOI: 10.1007/s00267-018-1071-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 05/19/2018] [Indexed: 06/08/2023]
Abstract
This study deals with the roles of pioneers or early adopters in a rainwater harvesting technology dissemination process in arsenic and water salinity affected communities in coastal Bangladesh. The dissemination of such innovative technologies has long been advocated for making disaster resilient communities, but how to disseminate these innovations has rarely been addressed, except heuristic studies limited to analyzing the cognitive factors of preparedness. We argue that identifying and characterizing pioneer adopters is critical to promote innovative disaster preventive technologies. Because pioneers take the risk to adopt at a time when only limited information of the innovation is available, and, based on their firsthand experience, other members can make prudent adoption decisions. By using the social network threshold model, we show that just as there are adopters at the macro or regional level, there are adopters at the micro or local level, and they have the most critical roles, as catalysts to disseminate disaster preventive technologies among the population. We also argue that cosmopolitaness and level of education characterize the pioneers better, rather than their income, risk awareness, and other personal features. Some policy options related to the findings are also discussed.
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Affiliation(s)
| | - Norio Okada
- Kwansei Gakuin University, Nishinomiya, Japan
| | - Xinyu Jiang
- School of management, Wuhan University of Technology, Wuhan, China
| | - Hirokazu Tatano
- Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan
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28
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Rahman MA, Rahman A, Khan MZK, Renzaho AMN. Human health risks and socio-economic perspectives of arsenic exposure in Bangladesh: A scoping review. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 150:335-343. [PMID: 29304476 DOI: 10.1016/j.ecoenv.2017.12.032] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 12/13/2017] [Accepted: 12/14/2017] [Indexed: 05/24/2023]
Abstract
Arsenic contamination of drinking water, which can occur naturally or because of human activities such as mining, is the single most important public health issue in Bangladesh. Fifty out of the 64 districts in the country have arsenic concentration of groundwater exceeding 50µgL-1, the Bangladeshi threshold, affecting 35-77 million people or 21-48% of the total population. Chronic arsenic exposure through drinking water and other dietary sources is an important public health issue worldwide affecting hundreds of millions of people. Consequently, arsenic poisoning has attracted the attention of researchers and has been profiled extensively in the literature. Most of the literature has focused on characterising arsenic poisoning and factors associated with it. However, studies examining the socio-economic aspects of chronic exposure of arsenic through either drinking water or foods remain underexplored. The objectives of this paper are (i) to review arsenic exposure pathways to humans; (ii) to summarise public health impacts of chronic arsenic exposure; and (iii) to examine socio-economic implications and consequences of arsenicosis with a focus on Bangladesh. This scoping review evaluates the contributions of different exposure pathways by analysing arsenic concentrations in dietary and non-dietary sources. The socio-economic consequences of arsenicosis disease in Bangladesh are discussed in this review by considering food habits, nutritional status, socio-economic conditions, and socio-cultural behaviours of the people of the country. The pathways of arsenic exposure in Bangladesh include drinking water, various plant foods and non-dietary sources such as soil. Arsenic affected people are often abandoned by the society, lose their jobs and get divorced and are forced to live a sub-standard life. The fragile public health system in Bangladesh has been burdened by the management of thousands of arsenicosis victims in Bangladesh.
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Affiliation(s)
- M Azizur Rahman
- Center for Infrastructure Engineering, Western Sydney University, Australia; Faculty of Science and Technology, Federation University, Ballarat, Victoria, Australia.
| | - A Rahman
- Water and Environmental Engineering, School of Computing, Engineering and Mathematics, Western Sydney University, Australia
| | - M Zaved Kaiser Khan
- Water and Environmental Engineering, School of Computing, Engineering and Mathematics, Western Sydney University, Australia
| | - Andre M N Renzaho
- Humanitarian and Development Research Initiative, School of Social Sciences and Psychology, Western Sydney University, Australia
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29
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Alam MM, Rashed MA, Rahman MM, Rahman MM, Nagao Y, Hasnat MA. Electrochemical oxidation of As(iii) on Pd immobilized Pt surface: kinetics and sensing performance. RSC Adv 2018; 8:8071-8079. [PMID: 35542006 PMCID: PMC9078481 DOI: 10.1039/c7ra12576c] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Accepted: 01/20/2018] [Indexed: 11/25/2022] Open
Abstract
Pd nanoparticles were electrochemically immobilized on a Pt surface in the presence of sodium dodecyl sulfate (SDS) molecules to study the electrokinetics of arsenite oxidation reactions and the corresponding sensing activities. The X-ray photoelectron spectroscopy (XPS) analysis showed that on the Pt surface, Pd atoms exist as adatoms and the contents of Pd(0) and Pd(ii) were 75.72 and 24.28 at%, respectively, and the particle sizes were in the range of 61-145 nm. The experimental results revealed that the catalytic efficiency as well as the charge transfer resistance (at the redox potential of the Fe(ii)/Fe(iii) couple) increased in the order of Pt < Pt-Pd < Pt-Pdsds. A Pt-Pdsds electrode exhibited an open circuit potential (OCP) of 0.65 V in acidic conditions; however, when 50.0 mM NaAsO2 was present, the OCP value shifted to 0.42 V. It has been projected that the As(iii) oxidation proceeds using a sequential pathway: As(iii) → As(iv) → As(v). After optimization of the square wave voltammetric data, the limits of detection of As(iii) were obtained as 1.3 μg L-1 and 0.2 μg L-1 when the surface modification of the Pt surface was executed with Pd particles in the absence and presence of the SDS surfactant, respectively. Finally, real samples were analyzed with excellent recovery performance.
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Affiliation(s)
- Md Mahbubul Alam
- Department of Chemistry, Shahjalal University of Science and Technology Sylhet-3114 Bangladesh +88-0821-715752 ext. 694 +88-0821-715752 ext. 694
| | - Md A Rashed
- Department of Chemistry, Mawlana Bhashani Science and Technology University Santosh, Tangail-1902 Bangladesh
| | - Md Musfiqur Rahman
- Department of Chemistry, Shahjalal University of Science and Technology Sylhet-3114 Bangladesh +88-0821-715752 ext. 694 +88-0821-715752 ext. 694
| | - Mohammed M Rahman
- Centre of Excellence for Advanced Materials Research (CEAMR), Chemistry Department, Faculty of Science, King Abdul Aziz University P.O. Box 80203 Jeddah 21589 Saudi Arabia
| | - Yuki Nagao
- School of Materials Science, Japan Advanced Institute of Science and Technology 1-1 Asahidai Nomi Ishikawa 923-1292 Japan
| | - Mohammad A Hasnat
- Department of Chemistry, Shahjalal University of Science and Technology Sylhet-3114 Bangladesh +88-0821-715752 ext. 694 +88-0821-715752 ext. 694
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Mondal S, Roy A, Mukherjee R, Mondal M, Karmakar S, Chatterjee S, Mukherjee M, Bhattacharjee S, De S. A socio-economic study along with impact assessment for laterite based technology demonstration for arsenic mitigation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 583:142-152. [PMID: 28117153 DOI: 10.1016/j.scitotenv.2017.01.042] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 12/23/2016] [Accepted: 01/07/2017] [Indexed: 06/06/2023]
Abstract
Arsenic contamination mitigation technologies have been adsorption-based, but the most widely-used and traditionally available adsorbents suffered inherent limitations, including cost infeasibility and problems associated with regeneration and disposal of the spent adsorbent. The present technology is based on indigenously developed activated laterite prepared from the naturally and abundantly available material, and can hence easily be scaled up for community usage and large scale implementation. The total arsenic removal capacity is 32.5mg/g, which is the highest among all naturally occurring arsenic adsorbents. A major issue in earlier adsorbents was that during regeneration, the adsorbed arsenic would be released back into the environment (leaching), and would eventually contaminate the groundwater again. But the adsorbent in this filter does not require regeneration during its five-year lifespan and does not leach upon disposal. An attempt is made to test and demonstrate the practical implementation of the technology - its effectiveness and viability in three community (primary schools - one in Malda and two in north 24 Parganas, West Bengal, India) and 20 household filters, catering to over 5000 people in different areas of West Bengal exposed to high arsenic contamination of groundwater (ranging from 0.05 to 0.5mg/l). The work also focuses on the social impact of the real life technological solution on the lives on the affected people in the worst hit arsenic affected communities, perhaps the greatest public health risk emergency of the decade.
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Affiliation(s)
- Sourav Mondal
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India.
| | - Anirban Roy
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India.
| | - Raka Mukherjee
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India.
| | - Mrinmoy Mondal
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India.
| | - Sankha Karmakar
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India.
| | - Somak Chatterjee
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India.
| | - Munmun Mukherjee
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India.
| | - Saikat Bhattacharjee
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India.
| | - Sirshendu De
- Department of Chemical Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India.
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31
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Waghe P, Sarkar SN, Sarath TS, Kandasamy K, Choudhury S, Gupta P, Harikumar S, Mishra SK. Subchronic Arsenic Exposure Through Drinking Water Alters Lipid Profile and Electrolyte Status in Rats. Biol Trace Elem Res 2017; 176:350-354. [PMID: 27646559 DOI: 10.1007/s12011-016-0851-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Accepted: 09/08/2016] [Indexed: 11/25/2022]
Abstract
Arsenic is a groundwater pollutant and can cause various cardiovascular disorders in the exposed population. The aim of the present study was to assess whether subchronic arsenic exposure through drinking water can induce vascular dysfunction associated with alteration in plasma electrolytes and lipid profile. Rats were exposed to arsenic as 25, 50, and 100 ppm of sodium arsenite through drinking water for 90 consecutive days. On the 91st day, rats were sacrificed and blood was collected. Lipid profile and the levels of electrolytes (sodium, potassium, and chloride) were assessed in plasma. Arsenic reduced high-density lipoprotein cholesterol (HDL-C) and HDL-C/LDL-C ratio, but increased the levels of triglycerides, total cholesterol, low-density lipoprotein cholesterol (LDL-C), and electrolytes. The results suggest that the arsenic-mediated dyslipidemia and electrolyte retention could be important mechanisms in the arsenic-induced vascular disorder.
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Affiliation(s)
- Prashantkumar Waghe
- Department of Veterinary Pharmacology and Toxicology, Veterinary College, Vinobanagar, Shimoga, Karnataka, 577 204, India.
| | - Souvendra Nath Sarkar
- Division of Pharmacology and Toxicology, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243 122, India
| | - Thengumpallil Sasindran Sarath
- Division of Pharmacology and Toxicology, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243 122, India
| | - Kannan Kandasamy
- Division of Pharmacology and Toxicology, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243 122, India
| | - Soumen Choudhury
- Division of Pharmacology and Toxicology, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243 122, India
| | - Priyanka Gupta
- Division of Pharmacology and Toxicology, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243 122, India
| | - Sankarankutty Harikumar
- Division of Pharmacology and Toxicology, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243 122, India
| | - Santosh Kumar Mishra
- Division of Pharmacology and Toxicology, Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, 243 122, India
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32
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Isbister GK, Dawson AH, Whyte IM. Arsenic trioxide poisoning: a description of two acute overdoses. Hum Exp Toxicol 2016; 23:359-64. [PMID: 15311855 DOI: 10.1191/0960327104ht459cr] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Arsenic is a traditional poison that has a history extending back into ancient times, as a medicinal agent, a homicidal poison and more recently in deliberate and unintentional self-poisoning. We report two cases of acute poisoning with an unwettable formulation of arsenic trioxide. Both patients had early gastrointestinal toxicity and were treated with early whole bowel irrigation (WBI). Chelation therapy with dimercaptosuccinic acid (dimercaptosuccinate, DMSA) was commenced within 24 hours and serial blood and urine arsenic concentrations were measured. Neither patient suffered any adverse outcome in spite of very high blood and urine concentrations of arsenic. Arsenic quantification in blood, urine and faeces suggested that enhanced gastrointestinal decontamination was minimally effective for decontamination and that DMSA for at least two weeks was required.
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Affiliation(s)
- Geoffrey K Isbister
- Discipline of Clinical Pharmacology, University of Newcastle, Newcastle, NSW, Australia.
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Arsenic causes aortic dysfunction and systemic hypertension in rats: Augmentation of angiotensin II signaling. Chem Biol Interact 2015; 237:104-14. [PMID: 26079204 DOI: 10.1016/j.cbi.2015.06.014] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 04/28/2015] [Accepted: 06/08/2015] [Indexed: 02/07/2023]
Abstract
The groundwater pollutant arsenic can cause various cardiovascular disorders. Angiotensin II, a potent vasoconstrictor, plays an important role in vascular dysfunction by promoting changes in endothelial function, vascular reactivity, tissue remodeling and oxidative stress. We investigated whether modulation of angiotensin II signaling and redox homeostasis could be a mechanism contributing to arsenic-induced vascular disorder. Rats were exposed to arsenic at 25, 50 and 100ppm of sodium arsenite through drinking water consecutively for 90 days. Blood pressure was recorded weekly. On the 91st day, the rats were sacrificed for blood collection and isolation of thoracic aorta. Angiotensin converting enzyme and angiotensin II levels were assessed in plasma. Aortic reactivity to angiotensin II was assessed in organ-bath system. Western blot of AT1 receptors and G protein (Gαq/11), ELISA of signal transducers of MAP kinase pathway and reactive oxygen species (ROS) generation were assessed in aorta. Arsenic caused concentration-dependent increase in systolic, diastolic and mean arterial blood pressure from the 10th, 8th and 7th week onwards, respectively. Arsenic caused concentration-dependent enhancement of the angiotensin II-induced aortic contractile response. Arsenic also caused concentration-dependent increase in the plasma levels of angiotensin II and angiotensin converting enzyme and the expression of aortic AT1 receptor and Gαq/11 proteins. Arsenic increased aortic protein kinase C activity and the concentrations of protein tyrosine kinase, extracellular signal-regulated kinase-1/2 and vascular endothelial growth factor. Further, arsenic increased aortic mRNA expression of Nox2, Nox4 and p22phox, NADPH oxidase activity and ROS generation. The results suggest that arsenic-mediated enhancement of angiotensin II signaling could be an important mechanism in the arsenic-induced vascular disorder, where ROS could augment the angiotensin II signaling through activation of MAP kinase pathway.
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Anwar Hossain M, Rahman GKMM, Rahman MM, Molla AH, Mostafizur Rahman M, Khabir Uddin M. Impact of industrial effluent on growth and yield of rice (Oryza sativa L.) in silty clay loam soil. J Environ Sci (China) 2015; 30:231-240. [PMID: 25872732 DOI: 10.1016/j.jes.2014.10.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 09/10/2014] [Accepted: 10/30/2014] [Indexed: 06/04/2023]
Abstract
Degradation of soil and water from discharge of untreated industrial effluent is alarming in Bangladesh. Therefore, buildup of heavy metals in soil from contaminated effluent, their entry into the food chain and effects on rice yield were quantified in a pot experiment. The treatments were comprised of 0, 25%, 50%, 75% and 100% industrial effluents applied as irrigation water. Effluents, initial soil, different parts of rice plants and post-harvest pot soil were analyzed for various elements, including heavy metals. Application of elevated levels of effluent contributed to increased heavy metals in pot soils and rice roots due to translocation effects, which were transferred to rice straw and grain. The results indicated that heavy metal toxicity may develop in soil because of contaminated effluent application. Heavy metals are not biodegradable, rather they accumulate in soils, and transfer of these metals from effluent to soil and plant cells was found to reduce the growth and development of rice plants and thereby contributed to lower yield. Moreover, a higher concentration of effluent caused heavy metal toxicity as well as reduction of growth and yield of rice, and in the long run a more aggravated situation may threaten human lives, which emphasizes the obligatory adoption of effluent treatment before its release to the environment, and regular monitoring by government agencies needs to be ensured.
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Affiliation(s)
- Mohammad Anwar Hossain
- Department of Environmental Sciences, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh.
| | | | - Mohammad Mizanur Rahman
- Department of Soil Science, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
| | - Abul Hossain Molla
- Department of Bioenvironmental Science, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh
| | | | - Mohammad Khabir Uddin
- Department of Environmental Sciences, Jahangirnagar University, Savar, Dhaka 1342, Bangladesh
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35
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Poojan S, Dhasmana A, Jamal QMS, Haneef M, Lohani M. Comparative Molecular Docking Studies with ABCC1 and Aquaporin 9 in the Arsenite Complex Efflux. Bioinformation 2014; 10:474-9. [PMID: 25258480 PMCID: PMC4166764 DOI: 10.6026/97320630010474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 08/03/2014] [Accepted: 08/04/2014] [Indexed: 11/23/2022] Open
Abstract
Arsenic is the most toxic metalloid present in the natural environment in both organic and inorganic arsenic forms. Inorganic
arsenic is often more hazardous than the organic form. Arsenite and arsenate compounds are the major inorganic forms which are
toxic causing severe human health dysfunction including cancer. Excretion of arsenic from the system is found elusive. Therefore, it
is of interest to screen channel proteins with the arsenic complex in the different combination of arsenic, GSH (glutathione) and
arsenic, selenium using docking methods. The mode of arsenic removal. The complex structure revealed the mode of arsenic
binding efficiency with the receptor aquaporine 9 and ABCC1 channel protein. This provides insights to understand the
mechanism of arsenic efflux. These inferences find application in the design, identification and development of novel nutracetucal
or any other formulation useful in the balance of arsenic efflux.
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Affiliation(s)
- Shiv Poojan
- Environmental Carcinogenesis Division, CSIR-Indian Institute of Toxicology Research, Mahatma Gandhi Marg, P Box 80, Lucknow-226001 ; Environmental Carcinogenesis & Toxicoinformatics Laboratory, Departments of Biosciences, Integral University, Lucknow-226026
| | - Anupam Dhasmana
- Environmental Carcinogenesis & Toxicoinformatics Laboratory, Departments of Biosciences, Integral University, Lucknow-226026
| | - Qazi Mohammad Sajid Jamal
- Environmental Carcinogenesis & Toxicoinformatics Laboratory, Departments of Biosciences, Integral University, Lucknow-226026
| | - Mohd Haneef
- Environmental Carcinogenesis & Toxicoinformatics Laboratory, Departments of Biosciences, Integral University, Lucknow-226026
| | - Mohtashim Lohani
- Environmental Carcinogenesis & Toxicoinformatics Laboratory, Departments of Biosciences, Integral University, Lucknow-226026
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36
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Saint-Jacques N, Parker L, Brown P, Dummer TJB. Arsenic in drinking water and urinary tract cancers: a systematic review of 30 years of epidemiological evidence. Environ Health 2014; 13:44. [PMID: 24889821 PMCID: PMC4088919 DOI: 10.1186/1476-069x-13-44] [Citation(s) in RCA: 126] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Accepted: 03/05/2014] [Indexed: 05/18/2023]
Abstract
BACKGROUND Arsenic in drinking water is a public health issue affecting hundreds of millions of people worldwide. This review summarizes 30 years of epidemiological studies on arsenic exposure in drinking water and the risk of bladder or kidney cancer, quantifying these risks using a meta-analytical framework. METHODS Forty studies met the selection criteria. Seventeen provided point estimates of arsenic concentrations in drinking water and were used in a meta-analysis of bladder cancer incidence (7 studies) and mortality (10 studies) and kidney cancer mortality (2 studies). Risk estimates for incidence and mortality were analyzed separately using Generalized Linear Models. Predicted risks for bladder cancer incidence were estimated at 10, 50 and 150 μg/L arsenic in drinking water. Bootstrap randomizations were used to assess robustness of effect size. RESULTS Twenty-eight studies observed an association between arsenic in drinking water and bladder cancer. Ten studies showed an association with kidney cancer, although of lower magnitude than that for bladder cancer. The meta-analyses showed the predicted risks for bladder cancer incidence were 2.7 [1.2-4.1]; 4.2 [2.1-6.3] and; 5.8 [2.9-8.7] for drinking water arsenic levels of 10, 50, and 150 μg/L, respectively. Bootstrapped randomizations confirmed this increased risk, but, lowering the effect size to 1.4 [0.35-4.0], 2.3 [0.59-6.4], and 3.1 [0.80-8.9]. The latter suggests that with exposures to 50 μg/L, there was an 83% probability for elevated incidence of bladder cancer; and a 74% probability for elevated mortality. For both bladder and kidney cancers, mortality rates at 150 ug/L were about 30% greater than those at 10 μg/L. CONCLUSION Arsenic in drinking water is associated with an increased risk of bladder and kidney cancers, although at lower levels (<150 μg/L), there is uncertainty due to the increased likelihood of exposure misclassification at the lower end of the exposure curve. Meta-analyses suggest exposure to 10 μg/L of arsenic in drinking water may double the risk of bladder cancer, or at the very least, increase it by about 40%. With the large number of people exposed to these arsenic concentrations worldwide the public health consequences of arsenic in drinking water are substantial.
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Affiliation(s)
- Nathalie Saint-Jacques
- Cancer Care Nova Scotia, Surveillance and Epidemiology Unit, Room 560 Bethune Building, 1276 South Street, Halifax B3H 2Y9, Nova Scotia, Canada
- Interdisciplinary PhD program, Dalhousie University, 6299 South Street, Room 314, PO Box 15000, Halifax B3H 4R2, Nova Scotia, Canada
| | - Louise Parker
- Department of Pediatrics and Population Cancer Research Program, Dalhousie University, 1494 Carlton Street, PO Box 15000, Halifax B3H 4R2, Nova Scotia, Canada
| | - Patrick Brown
- Population Studies and Surveillance, Cancer Care Ontario, 620 University Ave, Toronto M5G 2 L7 Ontario, Canada
| | - Trevor JB Dummer
- Department of Pediatrics and Population Cancer Research Program, Dalhousie University, 1494 Carlton Street, PO Box 15000, Halifax B3H 4R2, Nova Scotia, Canada
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Remy S, Govarts E, Bruckers L, Paulussen M, Wens B, Hond ED, Nelen V, Baeyens W, van Larebeke N, Loots I, Sioen I, Schoeters G. Expression of the sFLT1 gene in cord blood cells is associated to maternal arsenic exposure and decreased birth weight. PLoS One 2014; 9:e92677. [PMID: 24664213 PMCID: PMC3963915 DOI: 10.1371/journal.pone.0092677] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Accepted: 02/24/2014] [Indexed: 12/17/2022] Open
Abstract
There is increasing epidemiologic evidence that arsenic exposure in utero is associated with adverse pregnancy outcomes and may contribute to long-term health effects. These effects may occur at low environmental exposures but the underlying molecular mechanism is not clear. We collected cord blood samples of 183 newborns to identify associations between arsenic levels and birth anthropometric parameters in an area with very low arsenic exposure. Our core research aim was to screen for transcriptional marks that mechanistically explain these associations. Multiple regression analyses showed that birth weight decreased with 47 g (95% CI: 16–78 g) for an interquartile range increase of 0.99 μg/L arsenic. The model was adjusted for child’s sex, maternal smoking during pregnancy, gestational age, and parity. Higher arsenic concentrations and reduced birth weight were positively associated with changes in expression of the sFLT1 (soluble fms-like tyrosine kinase-1) gene in cord blood cells in girls. The protein product of sFLT1 is a scavenger of vascular endothelial growth factor (VEGF) in the extracellular environment and plays a key role in the inhibition of placental angiogenesis. In terms of fetal development, inhibition of placental angiogenesis leads to impaired nutrition and hence to growth retardation. Various genes related to DNA methylation and oxidative stress showed also changed expression in relation to arsenic exposure but were not related to birth outcome parameters. In conclusion, this study suggests that increased expression of sFLT1 is an intermediate marker that points to placental angiogenesis as a pathway linking prenatal arsenic exposure to reduced birth weight.
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Affiliation(s)
- Sylvie Remy
- Environmental Risk and Health, Flemish Institute for Technological Research (VITO), Mol, Belgium
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
- * E-mail:
| | - Eva Govarts
- Environmental Risk and Health, Flemish Institute for Technological Research (VITO), Mol, Belgium
| | - Liesbeth Bruckers
- Interuniversity Institute for Biostatistics and Statistical Bioinformatics, Hasselt University, Diepenbeek, Belgium
| | - Melissa Paulussen
- Environmental Risk and Health, Flemish Institute for Technological Research (VITO), Mol, Belgium
| | - Britt Wens
- Environmental Risk and Health, Flemish Institute for Technological Research (VITO), Mol, Belgium
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Elly Den Hond
- Environmental Risk and Health, Flemish Institute for Technological Research (VITO), Mol, Belgium
| | - Vera Nelen
- Department of Health, Provincial Institute for Hygiene, Antwerp, Belgium
| | - Willy Baeyens
- Department of Analytical, Environmental and Geochemistry (AEGC), Vrije Universiteit Brussel, Brussels, Belgium
| | - Nicolas van Larebeke
- Department of Analytical, Environmental and Geochemistry (AEGC), Vrije Universiteit Brussel, Brussels, Belgium
- Department of Radiotherapy and Experimental cancer research, Ghent University, Ghent, Belgium
| | - Ilse Loots
- Department Sociology, Faculty of Political and Social Sciences, University of Antwerp, Antwerp, Belgium
| | - Isabelle Sioen
- Department of Public Health, Ghent University, Ghent, Belgium
- FWO Research Foundation, Brussels, Belgium
| | - Greet Schoeters
- Environmental Risk and Health, Flemish Institute for Technological Research (VITO), Mol, Belgium
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
- Department of Environmental Medicine, University of Southern Denmark, Odense, Denmark
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Mendoza RMO, Kan CC, Chuang SS, Pingul-Ong SMB, Dalida MLP, Wan MW. Feasibility studies on arsenic removal from aqueous solutions by electrodialysis. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2014; 49:545-554. [PMID: 24410685 DOI: 10.1080/10934529.2014.859035] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The effectiveness of electrodialysis (ED) in removing inorganic arsenic (As) from aqueous solution was investigated. A tailor-made ED stack was used to perform current-voltage and optimization experiments in a recirculating batch mode. Samples were pre-oxidized with NaClO using 1:2 sample to oxidant weight ratio (RS:O) to transform 100% of As(III) to As(V) in 180 seconds. A high feed water conductivity of 1500 μS/cm and a low feed water conductivity of 800μS/cm had limiting currents of 595 mA and 525 mA, respectively. Optimum experimental conditions that provided maximum As separation were applied potential (E) of 12 V, feed flow rate (Q) of 0.033 L/s, feed concentration (C) of 662.0 μg L(-1), and operating time (t) of 45 min, the most significant ones were applied potential, feed concentration and operating time. Model confirmation experiments showed a good agreement with experimental results with only 0.031% error. The total As in the diluate stream was 4.0 μg L(-1), consisting of an average of 3.0 μg L(-1) As(V) and 1.0 μg L(-1) As(III).
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Affiliation(s)
- Rose Marie O Mendoza
- a General Education Department , Far Eastern University-Nicanor Reyes Medical Foundation , Quezon City , Philippines
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Wei Y, Zhu J, Nguyen A. Rice consumption and urinary concentrations of arsenic in US adults. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2013; 24:459-470. [PMID: 24236891 DOI: 10.1080/09603123.2013.857393] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Exposure to inorganic arsenic in the general population occurs mainly from drinking water and food sources. This study examined the association between rice consumption and urinary concentrations of arsenic in US adults, aged 20-85 years, in the 2003-2006 National Health and Nutrition Examination Survey. Significantly higher geometric means of creatinine-corrected urinary concentrations of total arsenic (TAs) and dimethylarsinic acid (DMA) were found in participants who consumed rice more than twice per week, compared to the reference group. Multivariate logistic regression analysis revealed a statistically significant association between rice consumption and urinary concentrations of TAs [odds ratio (OR) = 1.51 (1.08, 2.09)] and DMA [OR = 2.24 (1.57, 3.21)] after adjustment for demographic variables, seafood intake (the main source of organic arsenic), and source of drinking water. Furthermore, significant variations in rice consumption and urinary concentrations of arsenic were observed in different racial groups. This study demonstrated that rice consumption contributed to inorganic arsenic exposure in US adults.
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Affiliation(s)
- Yudan Wei
- a Department of Community Medicine , Mercer University School of Medicine , Macon , GA , USA
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Clancy TM, Hayes KF, Raskin L. Arsenic waste management: a critical review of testing and disposal of arsenic-bearing solid wastes generated during arsenic removal from drinking water. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:10799-812. [PMID: 24004144 DOI: 10.1021/es401749b] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Water treatment technologies for arsenic removal from groundwater have been extensively studied due to widespread arsenic contamination of drinking water sources. Central to the successful application of arsenic water treatment systems is the consideration of appropriate disposal methods for arsenic-bearing wastes generated during treatment. However, specific recommendations for arsenic waste disposal are often lacking or mentioned as an area for future research and the proper disposal and stabilization of arsenic-bearing waste remains a barrier to the successful implementation of arsenic removal technologies. This review summarizes current disposal options for arsenic-bearing wastes, including landfilling, stabilization, cow dung mixing, passive aeration, pond disposal, and soil disposal. The findings from studies that simulate these disposal conditions are included and compared to results from shorter, regulatory tests. In many instances, short-term leaching tests do not adequately address the range of conditions encountered in disposal environments. Future research directions are highlighted and include establishing regulatory test conditions that align with actual disposal conditions and evaluating nonlandfill disposal options for developing countries.
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Affiliation(s)
- Tara M Clancy
- Department of Civil and Environmental Engineering, University of Michigan , Ann Arbor, Michigan 48109, United States
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41
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Squadrone S, Prearo M, Gavinelli S, Pellegrino M, Tarasco R, Benedetto A, Abete M. Heavy metals inMugil cephalus(Mugilidae) from the Ligurian Sea (North-West Mediterranean, Italy). FOOD ADDITIVES & CONTAMINANTS PART B-SURVEILLANCE 2013; 6:134-8. [DOI: 10.1080/19393210.2013.766817] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Squadrone S, Prearo M, Brizio P, Gavinelli S, Pellegrino M, Scanzio T, Guarise S, Benedetto A, Abete MC. Heavy metals distribution in muscle, liver, kidney and gill of European catfish (Silurus glanis) from Italian Rivers. CHEMOSPHERE 2013; 90:358-65. [PMID: 22901372 DOI: 10.1016/j.chemosphere.2012.07.028] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2012] [Revised: 06/29/2012] [Accepted: 07/12/2012] [Indexed: 05/25/2023]
Abstract
The accumulation of heavy metals in freshwaters has direct consequences to man and ecosystem. Thus, in this study, the concentrations of mercury, cadmium, lead, arsenic and chromium in organs of the predator European catfish (Silurus glanis) were investigated. Samples were collected annually in five sites covering the area of the Po River (North Italy) between 2007 and 2009. Metals were differently distributed in the various organs, the highest concentrations of Hg were found in muscle and liver, Cd in kidney, Pb in gill and liver, as in muscle, and of Cr in gill and liver. Our survey found Hg exceeding the Maximum Levels (MLs) of 0.5 ppm in 18% of samples, while Pb and Cd were lower than the MLs set by European regulations in muscle tissues (1881/2006/EC and 629/2008/EC). Hg concentrations were significantly related to sampling stations studied, according to the presence of many industrial activities in the catchment area of Bormida and Tanaro Rivers. The finding that Hg did not fit food fish legislation limits indicated that S. glanis flesh might not be utilised for human consumption. A close monitoring of metals pollution is strongly recommended especially in piscivorous fish, cause their bioaccumulation capacity.
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Affiliation(s)
- S Squadrone
- Istituto Zooprofilattico Sperimentale del Piemonte, Liguria e Valle D'Aosta, Via Bologna 148, 10154 Torino, Italy.
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Kile ML, Baccarelli A, Hoffman E, Tarantini L, Quamruzzaman Q, Rahman M, Mahiuddin G, Mostofa G, Hsueh YM, Wright RO, Christiani DC. Prenatal arsenic exposure and DNA methylation in maternal and umbilical cord blood leukocytes. ENVIRONMENTAL HEALTH PERSPECTIVES 2012; 120:1061-6. [PMID: 22466225 PMCID: PMC3404653 DOI: 10.1289/ehp.1104173] [Citation(s) in RCA: 114] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Accepted: 03/30/2012] [Indexed: 05/11/2023]
Abstract
BACKGROUND Arsenic is an epigenetic toxicant and could influence fetal developmental programming. OBJECTIVES We evaluated the association between arsenic exposure and DNA methylation in maternal and umbilical cord leukocytes. METHODS Drinking-water and urine samples were collected when women were at ≤ 28 weeks gestation; the samples were analyzed for arsenic using inductively coupled plasma mass spectrometry. DNA methylation at CpG sites in p16 (n = 7) and p53 (n = 4), and in LINE-1 and Alu repetitive elements (3 CpG sites in each), was quantified using pyrosequencing in 113 pairs of maternal and umbilical blood samples. We used general linear models to evaluate the relationship between DNA methylation and tertiles of arsenic exposure. RESULTS Mean (± SD) drinking-water arsenic concentration was 14.8 ± 36.2 μg/L (range: < 1-230 μg/L). Methylation in LINE-1 increased by 1.36% [95% confidence interval (CI): 0.52, 2.21%] and 1.08% (95% CI: 0.07, 2.10%) in umbilical cord and maternal leukocytes, respectively, in association with the highest versus lowest tertile of total urinary arsenic per gram creatinine. Arsenic exposure was also associated with higher methylation of some of the tested CpG sites in the promoter region of p16 in umbilical cord and maternal leukocytes. No associations were observed for Alu or p53 methylation. CONCLUSIONS Exposure to higher levels of arsenic was positively associated with DNA methylation in LINE-1 repeated elements, and to a lesser degree at CpG sites within the promoter region of the tumor suppressor gene p16. Associations were observed in both maternal and fetal leukocytes. Future research is needed to confirm these results and determine if these small increases in methylation are associated with any health effects.
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Affiliation(s)
- Molly L Kile
- Oregon State University, College of Public Health and Human Sciences, Corvallis, Oregon 97331, USA.
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Talukder ASMHM, Meisner CA, Sarkar MAR, Islam MS, Sayre KD, Duxbury JM, Lauren JG. Effect of water management, arsenic and phosphorus levels on rice in a high-arsenic soil-water system: II. Arsenic uptake. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2012; 80:145-151. [PMID: 22425734 DOI: 10.1016/j.ecoenv.2012.02.020] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2011] [Revised: 02/20/2012] [Accepted: 02/22/2012] [Indexed: 05/31/2023]
Abstract
Rice consumption is one of the major pathways for As intake in populations that depend on a rice diet in several countries of South and South-east Asia. Pot experiments were undertaken to investigate the effects of water management (WM), arsenic (As) contaminated soil-water and Phosphorus (P) rates on As uptake in rice plants. There were 18 treatments comprising of three each of As rates (0, 20 and 40 mg kg(-1) soil) and P rates (0, 12.5 and 25 mg kg(-1) soil) and two WM (aerobic and anaerobic) strategies on winter (boro var. BRRI dhan 29) and monsoon (aman var. BRRI dhan 32) rice at the Wheat Research Center (WRC), Nashipur, Dinajpur, Bangladesh. Arsenic concentrations in rice grain and straw increased significantly (P ≤ 0.01) with the increasing As rates in the soil. Arsenic availability in soil pore-water solution was less (58%) under aerobic WM (redox potential-Eh=+135 to +138 mV; pH-6.50 at 24.3 °C) as compared to anaerobic WM (flooded: Eh=-41 to -76 mV; pH-6.43 at 23 °C). The highest total grain As content 2.23 ± 0.12 mg kg(-1) and 0.623 ± 0.006 mg kg(-1) was found in T(6) (P(12.5)As(40)-anaerobic) and T(9) (P(25)As(40)-anaerobic) in BRRI dhan 29 and BRRI dhan 32, respectively, which was significantly higher (41-45%) than in the same As and P treatments for pots under aerobic WM. The As content in rice straw (up to 24.7 ± 0.49 ppm in BRRI dhan 29, 17.3 ± 0.49 mg kg(-1) in BRRI dhan 32 with the highest As level) suggested that As can more easily be translocated to the shoots under anaerobic conditions than aerobic condition. BRRI dhan 29 was more sensitive to As than BRRI dhan 32. Under aerobic WM, P soil amendments reduced As uptake by rice plants. The study demonstrated that aerobic water management along with optimum P amendment and selection of arsenic inefficient rice varieties are appropriate options that can be applied to minimize As accumulation in rice which can reduce effects on human and cattle health risk as well as soil contamination.
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Affiliation(s)
- A S M H M Talukder
- School of Agriculture, Food and Wine, Waite Campus, the University of Adelaide, SA-5064, Australia.
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Abstract
Arsenic is an environmental pollutant and its contamination in the drinking water is considered as a serious worldwide environmental health threat. The chronic arsenic exposure is a cause of immense health distress as it accounts for the increased risk of various disorders such as cardiovascular abnormalities, diabetes mellitus, neurotoxicity, and nephrotoxicity. In addition, the exposure to arsenic has been suggested to affect the liver function and to induce hepatotoxicity. Moreover, few studies demonstrated the induction of carcinogenicity especially cancer of the skin, bladder, and lungs after the chronic exposure to arsenic. The present review addresses diverse mechanisms involved in the pathogenesis of arsenic-induced toxicity and end-organ damage.
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Affiliation(s)
- Amrit Pal Singh
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar - 143 005
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Kim D, Miranda ML, Tootoo J, Bradley P, Gelfand AE. Spatial modeling for groundwater arsenic levels in North Carolina. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2011; 45:4824-31. [PMID: 21528844 PMCID: PMC3855354 DOI: 10.1021/es103336s] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
To examine environmental and geologic determinants of arsenic in groundwater, detailed geologic data were integrated with well water arsenic concentration data and well construction data for 471 private wells in Orange County, NC, via a geographic information system. For the statistical analysis, the geologic units were simplified into four generalized categories based on rock type and interpreted mode of deposition/emplacement. The geologic transitions from rocks of a primary pyroclastic origin to rocks of volcaniclastic sedimentary origin were designated as polylines. The data were fitted to a left-censored regression model to identify key determinants of arsenic levels in groundwater. A Bayesian spatial random effects model was then developed to capture any spatial patterns in groundwater arsenic residuals into model estimation. Statistical model results indicate (1) wells close to a transition zone or fault are more likely to contain detectible arsenic; (2) welded tuffs and hydrothermal quartz bodies are associated with relatively higher groundwater arsenic concentrations and even higher for those proximal to a pluton; and (3) wells of greater depth are more likely to contain elevated arsenic. This modeling effort informs policy intervention by creating three-dimensional maps of predicted arsenic levels in groundwater for any location and depth in the area.
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Affiliation(s)
- Dohyeong Kim
- Department of Public Administration, North Carolina Central University, 215 Whiting CJ Building, Durham, North Carolina 27707, USA.
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Takahashi T, Satake S, Hirose KI, Hwang GW, Naganuma A. A screening for essential cell growth-related genes involved in arsenite toxicity in Saccharomyces cerevisiae. J Toxicol Sci 2011; 36:859-61. [DOI: 10.2131/jts.36.859] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Tsutomu Takahashi
- Laboratory of Molecular and Biochemical Toxicology, Graduate School of Pharmaceutical Sciences,Tohoku University
| | - Shohei Satake
- Laboratory of Molecular and Biochemical Toxicology, Graduate School of Pharmaceutical Sciences,Tohoku University
| | - Ken-ichiro Hirose
- Laboratory of Molecular and Biochemical Toxicology, Graduate School of Pharmaceutical Sciences,Tohoku University
| | - Gi-Wook Hwang
- Laboratory of Molecular and Biochemical Toxicology, Graduate School of Pharmaceutical Sciences,Tohoku University
| | - Akira Naganuma
- Laboratory of Molecular and Biochemical Toxicology, Graduate School of Pharmaceutical Sciences,Tohoku University
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Rahman MR, Okajima T, Ohsaka T. Selective Detection of As(III) at the Au(111)-like Polycrystalline Gold Electrode. Anal Chem 2010; 82:9169-76. [DOI: 10.1021/ac101206j] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mohammad Rezaur Rahman
- Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 4259-G1-5 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Takeyoshi Okajima
- Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 4259-G1-5 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Takeo Ohsaka
- Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 4259-G1-5 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
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Marketon JIW, Sternberg EM. The glucocorticoid receptor: a revisited target for toxins. Toxins (Basel) 2010; 2:1357-80. [PMID: 22069642 PMCID: PMC3153245 DOI: 10.3390/toxins2061357] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2010] [Revised: 05/28/2010] [Accepted: 06/07/2010] [Indexed: 12/15/2022] Open
Abstract
The hypothalamic-pituitary-adrenal (HPA) axis activation and glucocorticoid responses are critical for survival from a number of bacterial, viral and toxic insults, demonstrated by the fact that removal of the HPA axis or GR blockade enhances mortality rates. Replacement with synthetic glucocorticoids reverses these effects by providing protection against lethal effects. Glucocorticoid resistance/insensitivity is a common problem in the treatment of many diseases. Much research has focused on the molecular mechanism behind this resistance, but an area that has been neglected is the role of infectious agents and toxins. We have recently shown that the anthrax lethal toxin is able to repress glucocorticoid receptor function. Data suggesting that the glucocorticoid receptor may be a target for a variety of toxins is reviewed here. These studies have important implications for glucocorticoid therapy.
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Affiliation(s)
- Jeanette I. Webster Marketon
- Department of Internal Medicine, Division of Pulmonary, Allergy, Critical Care & Sleep Medicine, 201 DHLRI, 473 W. 12th Avenue, Columbus, OH 43210, USA
- Institute for Behavioral Medicine Research, The Ohio State University Medical Center, 460 Medical Center Drive, Columbus, OH 43210, USA
- Author to whom correspondence should be addressed; ; Tel.: +1-614-293-3496; Fax: +1-614-366-2074
| | - Esther M. Sternberg
- Department of Health and Human Services, Section on Neuroendocrine Immunology and Behavior, National Institute of Mental Health, National Institutes of Health, 5625 Fishers Lane, Rm. 4N13 (MSC 9401), Bethesda, MD 20892-9401, USA;
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Noble RRP, Hough RM, Watkins RT. Enrichment and exposure assessment of As, Cr and Pb of the soils in the vicinity of Stawell, Victoria, Australia. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2010; 32:193-205. [PMID: 19779837 DOI: 10.1007/s10653-009-9275-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2008] [Accepted: 09/04/2009] [Indexed: 05/28/2023]
Abstract
Stawell Gold Mine in NW Victoria, Australia, mines ores that contain large concentrations of As and significant quantities of the metals Pb and Cr. The aim of this research was to understand the dispersion, enrichment and probable exposure of these potentially hazardous elements around the mine site. Fifty-five surface soil samples were collected near the mine (<15 km) and analysed by ICP-MS/OES following bioavailable and four-acid extractions. Soils near the mine show greater concentrations of As, Cr and Pb than those near a regionally determined background. This is attributed to the combination of a natural geochemical halo around mineralization and anthropogenic dispersion due to mining and urbanization. Total As concentrations were between 16 and 946 mg kg(-1) near the mine in a regional background of 1-16 mg kg(-1). Total Cr concentrations were between 18 and 740 mg kg(-1) near the mine in a regional background of 26-143 mg kg(-1). Total Pb concentrations were between 12 and 430 mg kg(-1) near the mine in a regional background of 9-23 mg kg(-1). Dispersion of contaminant elements from the present ore processing is <500 m. The most enriched soils occur close to the town and are unrelated to present mining practices. The bioavailable As, Cr and Pb, soil ingestion rates and Risk Reference Doses were used to estimate health risks. An average toddler (12 kg) would need to consume at least 1.5 g, and most likely 12 g, of soil per day to show some symptoms of As toxicity. The maximum measured bioavailable As would pose a risk at average ingestion rates of 200 mg per day. Individuals with soil-eating disorders would exceed the safe daily consumption limits for As, and potentially Cr and Pb. Small children are not typically exposed to soil everyday, very few have soil eating disorders, and, therefore, the health risk from the soils around the mine is minimal.
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