Risk analysis of heavy metal concentration in surface waters across the rural-urban interface of the Wen-Rui Tang River, China

Qu, Liyin; Huang, Hong; Xia, Fang; Liu, Yuan Yuan; Dahlgren, Randy A.; Zhang, Minghua; Mei, Kun

doi:10.1016/j.envpol.2018.02.020

Cited by 212 publications

(88 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Trace metals in waters may originate from both natural and anthropogenic processes, such as mineral weathering, industrial activities, municipal wastewater discharge, unsustainable agricultural practices, and traffic activities [15,16]. Landfill impact on water contamination is considered to be one of the most pronounced issues threatening water quality [17,18] Due to the contamination of arsenic (As), drinking water from more than 70 countries is not safe for consumption for approximately 150 million people [19].…”

Section: Introductionmentioning

confidence: 99%

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

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 99%

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

View full text Add to dashboard Cite

show abstract

“…where Q i is a sub-indicator of the heavy metal pollution index, W i is the unit weight of the heavy metal parameter, C i is the concentration value of the i-th heavy metal parameter (mg L −1 ), and S i is the highest standard permissible value of the i-th parameter, The Standards for Drinking Water Quality (GB5749-2006) [28] was selected as the source of the highest allowable level for each of the heavy metal of interest. The proportional constant (k) was set to 1 [3]. The allowable and critical HPI value of drinking water is usually 100 [27].…”

Section: Heavy Metal Pollution Indexmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Heavy metals are ubiquitous pollutants in the environment, derived from both geogenic and anthropogenic sources [1][2][3]. Heavy metals have been the subject of significant attention due to their environmental toxicity, bioaccumulation and persistence [2,3]. Excessive emissions and accumulation of heavy metals can cause serious pollution to environmental media such as air, soil, water and sediments, with potential implications for ecological safety and human health [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

“…Rivers are an extremely important freshwater resource and ecological system that humans are often reliant upon [1,6,7]. However, rapid development of industry, agriculture and urbanization often results in polluting discharges (e.g., wastewater, agricultural run-off) to watercourses that impact water quality, with knock-on implications for ecosystem and human health [3,8,9]. Sediments are generally considered as both "source" and "sink" for most heavy metals and other pollutants in the water environment, thus measurements made in sediments can be a useful indicator of potential ecological risk to the aquatic environment [10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Concentrations, Possible Sources and Health Risk of Heavy Metals in Multi-Media Environment of the Songhua River, China

Cui

Zhang

et al. 2020

IJERPH

View full text Add to dashboard Cite

Heavy metal pollution in the river environment has been a source of widespread interest due to potential threats to human health and ecosystem security. Many studies have looked at heavy metal pollution in the context of single source-pathway-receptor relationships, however few have sought to understand pollution from a more wholistic multi-media perspective. To investigate potential risks in a more wholistic way, concentrations of six heavy metals (Cd, Cr, Ni, Cu, Zn and Pb) were detected in multi-media (water, sediment and riparian soil) collected from 14 sampling sites in the main stream of the Songhua River. Chemical analyses indicated that the average concentration of heavy metals in water followed: Zn > Cr > Cu > Pb > Ni > Cd, with a different trend observed in sediments and riparian soil: Zn > Cr > Ni > Pb > Cu > Cd. The potential risk was evaluated using the heavy metal pollution index (HPI), Nemerow pollution index (P N ), hazard index (HI) and carcinogenic risk (CR) metrics. Results showed that all HPI values were lower than the critical level of 100 indicating that the levels of these targeted heavy metals were within drinking water safety limits. The P N indicated that both sediment (2.64) and soil (2.95) could be considered "moderately polluted", with Cd and Zn providing the most significant contributions. A human health risk assessment suggested that the non-carcinogenic risks were within acceptable levels (HI < 1), as was the cancer risk associated with dermal adsorption (CR <10 −6 ). However, the CR associated with ingestion exposure (4.58 × 10 −6 ) exceeded the cancer risk threshold (10 −6 ) indicative of elevated cancer incidence in exposed populations. Health-risk estimates were primarily associated with Cd in the Songhua River. Source apportionment was informed by Pearson correlation analysis coupled with principal component analysis (PCA) which indicated that Cu was mainly derived from natural (geogenic) sources; Cr and Ni were associated with industrial emissions; Pb might be derived from agricultural and transportation sources; Zn might be from industrial, agricultural activities and transportation; while Cd is likely from industrial and agricultural emissions. The source apportionment information could provide the basis for a risk-management strategy focused on reducing Cd and Zn emissions to the riverine environment. Results from this study will provide the scientific knowledge that is needed for measuring and controlling heavy metals sources and pollution characteristics, and identifying the potential cancer risk with different exposure pathways, as well as making effective environmental management policies at catchment or regional scales.

show abstract

A Cross-Sectional Study on the Water Quality and Ecosystem Health of the Jalangi and Bhagirathi River and Their Selected Oxbow-Lakes

Sarkar

Das²

2022

Fluvial Systems in the Anthropocene

View full text Add to dashboard Cite

Risk analysis of heavy metal concentration in surface waters across the rural-urban interface of the Wen-Rui Tang River, China

Cited by 212 publications

References 45 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

Concentrations, Possible Sources and Health Risk of Heavy Metals in Multi-Media Environment of the Songhua River, China

A Cross-Sectional Study on the Water Quality and Ecosystem Health of the Jalangi and Bhagirathi River and Their Selected Oxbow-Lakes

Contact Info

Product

Resources

About