Occurrence and health risk assessment of selected metals in drinking water from two typical remote areas in China

Geng, Menghan; Qi, Hongjuan; Liu, Xuelin; Gao, Bo; Zhan, Yɑnɡ; Lu, Wei; Sun, Rubao

doi:10.1007/s11356-015-6021-2

Cited by 25 publications

(13 citation statements)

References 17 publications

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“…Indeed, Qinghai is one of the provinces that suffer contamination by high-arsenic water. A highest concentration of 318 μg/L of As in groundwater has been reported in Qinghai province [8,35,42]; As levels investigated in potable water in Qinghai found the highest concentration was 100 and 23.17 μg/L, respectively. Recently, a stricter reference As guideline of 3.4 μg/L has been recommended for drinking water based on male bladder cancer with an excess risk of 10 −4 for a 75-year lifetime exposure [46].…”

Section: Trace Metal Concentrationsmentioning

confidence: 99%

“…At present, there is an increasing trend that fresh water is under immense stress due to rapid population growth, urbanization and unsustainable consumption of water in industry and agriculture [1][2][3][4][5]. In developing countries, the problem is further aggravated due to the lack of proper management, unavailability of professionals and financial constraints [6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…Bottled water can usually be contaminated by Pb and antimony (Sb) due to the leaching of these elements from the containers [23,24]. The elevated concentrations of toxic metals in drinking water will increase the body loadings which may result in adverse health effects varying from shortness of breath to several types of cancer [3,8,[25][26][27].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, drinking water quality monitoring and the available studies on daily intakes of trace metals in drinking water are limited to big cities [31][32][33] or specific sites [34,35]. In rural areas or countryside regions, water quality information is scarce [3,8]. Indeed, water pollution is especially severe in Chinese rural areas [28] (Zhang et al).…”

Section: Introductionmentioning

confidence: 99%

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Occurrence and Health-Risk Assessment of Trace Metals in Raw and Boiled Drinking Water from Rural Areas of China

Man

Sun

et al. 2018

Water

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Abstract:In order to assess the exposure of rural residents to trace metals via drinking water ingestion, 222 drinking water samples of rural areas from 8 provinces in China were collected and 18 trace metals analyzed by inductively coupled plasma mass spectrometer (ICP-QMS). Based on metal concentrations, the health-risk assessment such as chronic daily intakes (CDI) and hazard quotient (HQ) were calculated. Results showed that most metals occurred in the drinking water at very low concentrations, indicating a general good quality, while the concentrations of As, Pb and Zn in some samples from Qinghai, Yunnan and Hunan provinces were higher than World Health Organization (WHO) and Chinese guidelines for drinking water. The values of CDI and HQ indicated a negligible health risk for most Chinese rural residents via drinking water. However, high concentrations of As in drinking water from Qinghai province would pose a serious risk to the local inhabitants. More attention and intensive study should be paid to Zn, Pb and As contents.

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Section: Trace Metal Concentrationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Occurrence and Health-Risk Assessment of Trace Metals in Raw and Boiled Drinking Water from Rural Areas of China

Man

Sun

et al. 2018

Water

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“…The values of model parameters q i and R f D i are exhibited in Table 1, and the values of Y, Q and W are shown in Table 2 [21].…”

Section: Health Risk Assessmentmentioning

confidence: 99%

Occurrence and Health Risk Assessment of Trace Metals in Desalinated Seawater Using Two Desalination Technologies

Gao¹,

Yu²,

Gao³

et al. 2020

Pol. J. Environ. Stud.

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Water demand and the water shortage crisis are increasing worldwide due to the population and rapid growth of the global economy, which are becoming very serious social and environmental problems [1]. According to the World Health Organization, by the year 2025 approximately 50% of the world's population will live in water-stressed regions. Therefore, other alternative methods (utilizing desalted seawater or recycling wastewater) have been invented for efficient water consumption [2]. Desalination of seawater is Pol. AbstractDesalination of seawater is an effective way to alleviate the world's water shortage. However, the transmission and health risk of trace metals in the different processes of seawater plants are highly uncertain. Here, we investigated the concentrations of 29 ions and trace elements in desalinated water based on two desalination techniques -multiple effect distillation (MED) and reverse osmosis (RO)and evaluated the potential health risks (carcinogenic risk (CR) and non-carcinogenic risk (n-CR)) of trace metals in these processes. The results showed that most ions and trace elements were efficiently removed using both the RO and MED methods. After desalination, the trace metal concentrations in the desalinated water treated with the MED method were higher than those in the desalinated water treated with the RO method. The n-CR values for the trace metals in the desalinated water using the MED and RO methods were within the neglectable level. The CR values based on the two methods were lower than the maximal acceptable risk levels designated by the US Environmental Protection Agency. The total health risks using the MED method were higher than those using the RO method. Our results indicated that seawater desalination using both treatment methods is safe.

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The role of education and income for cognitive functioning in old age: A cross‐country comparison

Rodriguez

Hofbauer

Röhr

2021

Int J Geriat Psychiatry

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Objectives Previous studies have shown that higher education promotes cognitive health. This effect, however, is embedded in the living conditions of a particular country. Since it is not clear to what extent the country and its specific living standards are necessary preconditions for the observed effect, we investigated whether the impact of education and income on cognitive functioning differs between countries. Methods Analyses were based on harmonized data from the World Health Organization's multi‐country Study on global AGEing and adult health, the Health and Retirement Study, and the Survey of Health, Ageing and Retirement in Europe of over 85,000 individuals aged 50 years and older. Analyses were conducted via multivariate regression analyses and structural equation modeling adjusted for age, gender, marital status, health status, and depression. Results The effect of education was twice as large as the effect of income on cognitive functioning and indirectly moderated the effect of income on cognitive functioning. The effect sizes varied strongly between countries. The country's gross domestic product per capita seems to influence cognitive functioning. Conclusions Our findings indicate that education has a dominant effect on cognitive functioning in people aged 50 years and older, which might even offset the adverse implications of living with low income on cognitive health. Therefore, expanding efforts to achieve universal education are essential to mitigate health disparities due to low income and early life disadvantages, including chances for good cognitive functioning over the life‐span.

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Occurrence and health risk assessment of selected metals in drinking water from two typical remote areas in China

Cited by 25 publications

References 17 publications

Occurrence and Health-Risk Assessment of Trace Metals in Raw and Boiled Drinking Water from Rural Areas of China

Occurrence and Health-Risk Assessment of Trace Metals in Raw and Boiled Drinking Water from Rural Areas of China

Occurrence and Health Risk Assessment of Trace Metals in Desalinated Seawater Using Two Desalination Technologies

The role of education and income for cognitive functioning in old age: A cross‐country comparison

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