Implementation of long-term assessment of human health risk for metal contaminated groundwater: A coupled chemical mass balance and hydrodynamics model

Zhang, Yimei; Li, Shuai; Fang, Qinglu; Duan, Yaxiao; Ou, Ping; Wang, Liqun; Chen, Zhuang; Wang, F.

doi:10.1016/j.ecoenv.2019.04.053

Cited by 21 publications

(7 citation statements)

References 33 publications

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“…These heavy metals can be adsorbed by the soil, flow into rivers or lakes, or leach out in groundwater, and then enter the human body through water supply pipe networks. It has been reported that there are more than 2.5 billion people whose domestic water sanitation conditions cannot meet the standard and approximately 1/5 of the people cannot acquire safe drinking water in the world, about 6 children die from unsafe water and sanitary equipment every minute in developing countries, and 7.2% of surface water in China has heavy metals exceeding the national standard . As a result, drinking water has become an important exposure route for heavy metals to enter the human body.…”

Section: Introductionmentioning

confidence: 99%

Functionalized Activated Carbon Fibers by Hydrogen Peroxide and Polydopamine for Efficient Trace Lead Removal from Drinking Water

et al. 2021

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To achieve efficient and selective trace heavy metals removal from drinking water, a low-cost purification material polydopamine/activated carbon fibers (PDA/H-ACF) was successfully prepared by polymerizing dopamine on the surface of activated carbon fibers pretreated with hydrogen peroxide. The morphology, phase, surface functional groups, specific surface, and pore size distribution of the as-prepared sample were analyzed using FESEM, XPS, BET and pore size distribution test (PST), and FTIR, and orthogonal experiments were used to investigate the influences of concentration of H 2 O 2 , pretreatment time, and reflux temperature on trace lead removal. The results showed that the sample pretreated under optimized conditions could produce different pore structures, and the content of functional group −COOH obviously increased. After further modification by polydopamine, the contents of −NH−, −NH 2 , and −OH functional groups on the surface obviously enhanced, which were beneficial to increase adsorption site and promote trace lead removal. The effluent lead concentration decreased from initial 150 to 3.18 ppb within 5 min, meeting the requirement of NSF International Standard/American National Standard for Drinking Water Treatment Units (NSF/ANSI 53−2020) (5 ppb). The isothermal adsorption process and adsorption kinetics could be well-fitted by the Langmuir isotherm and pseudo-second-order kinetics model, indicating that the adsorption process of trace lead by PDA/H-ACF belonged to monolayer and chemical adsorption. Moreover, the as-prepared PDA/H-ACF also showed superior trace lead adsorption performance in the presence of high concentration competitive metal ions, in a wide pH range and in tap water, and therefore had good application prospect in the field of drinking water purification.

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Section: Introductionmentioning

confidence: 99%

Functionalized Activated Carbon Fibers by Hydrogen Peroxide and Polydopamine for Efficient Trace Lead Removal from Drinking Water

et al. 2021

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“…However, it is only a regional resource in many parts of the country. In the recent years, the continuous increase in population, economic development and climate changes adversely distress the nature of water (Zhang et al,2019a, Pinto et al, 2019, Yadav et al, 2019. In a worst scenario, the combination of above factors may lead to non-availability of surface water in many parts of the country (Adimalla et al,2019a, Francisco et al, 2019, Wongsasuluk et,al 2014, Siirila et al, 2012.…”

Section: Introductionmentioning

confidence: 99%

Non-Carcinogenic Risk Assessment of Groundwater in Southern Part of Salem District in Tamilnadu, India

Balamurugan¹,

Kumar²,

Shankar

et al. 2020

J. Chil. Chem. Soc.

104

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The main objective of this study was to evaluate the groundwater quality for domestic, agriculture use and to describe fluoride contamination in groundwater and their impacts on human health. 67 groundwater samples were collected and analyzed for major ions. Water Quality Index (WQI), Piper diagram and Gibbs diagrams were calculated to measure the suitability of groundwater for drinking purpose. The hazards index value was calculated to estimate the noncarcinogenic risk to adult (male, female) and children suggested by the United States Environmental Protection Agency (USEPA). The irrigation indices were calculated to evaluate the quality of water for irrigation purpose. Statistical methods such as principal component and hierarchical cluster analysis were used to analyses the interrelationship of data. Hydrochemistry of the samples shows, the major ions in the order of Ca 2+ >Mg 2+ >Na + and Cl->SO4in the study area. WQI value of groundwater, 74.62% of sample locations are good and 25.38 % of sample locations need primary treatment for drinking purpose. The results of the hazards index show that 65.67% of the sample locations exceeds the tolerable limit for non-carcinogenic risk (greater than one) for children higher than the risk level for Male and female. Statistical report of PCA and HCA reveals that Ca-Na-HCO3-F has positive loading and TDS-EC has negative loading. The study results show that rock-water interaction and anthropogenic activities are the major factors that influence the quality of groundwater. The continuous intake of excess concentration fluoride causes bone diseases and teeth problems.

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“…However, the review showed that models mostly focused on hospitals on the dynamics of transmission related to methicillin-resistant Staphylococcus aureus in the high-income countries. Zhang et al (2019) established a model of long-term assessment to estimate the risks to human health from the contaminated groundwater with the presence of heavy metals. The authors used the geochemical model and the hydrodynamics module.…”

Section: Annual Literature Reviewmentioning

confidence: 99%

“…Zhang et al. (2019) established a model of long‐term assessment to estimate the risks to human health from the contaminated groundwater with the presence of heavy metals. The authors used the geochemical model and the hydrodynamics module.…”

Section: Human Healthmentioning

confidence: 99%

Ecological and human health risk assessment

Choudri

Al‐Nasiri

Charabi

et al. 2020

Water Environment Research

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The literature review presented in this paper includes the ecological and human health risk assessment in the form of receptors in the environment. The main objective of this review to highlight a summary of the many studies undertaken in the year 2019. The first part of the review covers the papers published on the health risk assessment related to human and ecological health. This article focuses on methods and tools utilized for the analysis of scientific studies and the data. The review provides main issues such as interpretation of data, uncertainty, and policies related to the management of risks. The ecological and human health risk assessment is divided into two main sections. Each of these sections presents in broad the risk assessment process namely pollution studies, remediation, and tools required for the management of natural resources and the environment.

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Implementation of long-term assessment of human health risk for metal contaminated groundwater: A coupled chemical mass balance and hydrodynamics model

Cited by 21 publications

References 33 publications

Functionalized Activated Carbon Fibers by Hydrogen Peroxide and Polydopamine for Efficient Trace Lead Removal from Drinking Water

Functionalized Activated Carbon Fibers by Hydrogen Peroxide and Polydopamine for Efficient Trace Lead Removal from Drinking Water

Non-Carcinogenic Risk Assessment of Groundwater in Southern Part of Salem District in Tamilnadu, India

Ecological and human health risk assessment

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