scholarly journals Distribution and potential health risk of nitrate in centralized groundwater sources of Wanbei Plain, Central China

2021 ◽  
Author(s):  
Yunhu Hu ◽  
Mu You ◽  
Guijian Liu ◽  
Zhongbing Dong
Keyword(s):  
Drinking Water ◽  
Health Risk ◽  
Average Concentration ◽  
Assessment Model ◽  
Central China ◽  
Karst Water ◽  
Water Control ◽  
Potential Health ◽  
Potential Health Risk ◽  
Skin Contact

Abstract Centralized groundwater sources are the main source for drinking, domestic, industry, and agriculture in Central China. Thirty-five centralized groundwater sources were selected to determine the concentration and distribution characterization of nitrate in Wanbei Plain, Anhui Province. Meanwhile, the health risk assessment model recommended by USEPA was used to evaluate the potential health risk for adults and children. The results showed that the average concentration of nitrate in the pore water is lower than that of karst water, which may be attributed to the thinner thickness of loose sediments for karst water. The nitrate in groundwater mainly originates from chemical fertilizers, industrial and domestic waste. The health risk of nitrate to children through drinking water intake and skin contact was significantly higher than that of adults, which was explained by their being more sensitive receptors and facing higher health risks than adults. The non-carcinogenic risk of nitrate in all samples was within the acceptable range. The results also indicated drinking water control is the main way to reduce nitrate health risk. Nevertheless, there is an urgent need to take measures to strengthen groundwater management, improve groundwater quality, and reduce nitrate health risk.

Health Risk Assessment of Organochlorine Pesticides in a Shallow Freshwater Lake, China

2013 ◽  
Vol 864-867 ◽  
pp. 871-875 ◽  
Author(s):  
Wei Guo ◽  
Yao Feng
Keyword(s):  
Drinking Water ◽  
Surface Water ◽  
Health Risk ◽  
Organochlorine Pesticides ◽  
Risk Level ◽  
Acceptable Risk ◽  
Potential Health ◽  
Potential Health Risk ◽  
The World ◽  
Carcinogenic Effects

Organochlorine pesticides (OCPs) including Hexachlorocyclohexanes (HCHs) and dichlorodiphenyltrichloroethanes (DDTs) in surface water of Lake Baiyangdian were determined to assess the potential health risk when using as drinking water for children and adults. The concentration of HCHs and DDTs in surface water were in the range of 2.74-11.50 ng L-1 and 3.48-16.88 ng L-1, respectively. Compared with similar results reported around the world, the level of OCPs in this study was in the mid-range. The analysis of health risk indicated that risks from OCPs in most part of the lake would not be risky to human health according to the acceptable risk level, while carcinogenic effects caused by α-HCH might occur if drinking water from Nanliuzhuang (NLZ) and Laowangdian (SCD). α-HCH and β-HCH were the dominating factors for carcinogenic and non-carcinogenic risks, respectively. Risks of OCPs for children were much higher than those caused by OCPs for adults.

scholarly journals The Occurrence and Potential Health Risk of Microcystins in Drinking Water of Rural Areas in China

2019 ◽  
pp. 728-732 ◽  
Author(s):  
Weiwei Zheng ◽  
Lan Yang ◽  
Wuren Ma ◽  
Yu Huang ◽  
M. James C. Crabbe ◽  
...  
Keyword(s):  
Drinking Water ◽  
Health Risk ◽  
Rural Areas ◽  
Potential Health ◽  
Potential Health Risk

Health risk assessment of nitrate pollution in shallow groundwater: a case study in Changchun New District, China

2019 ◽  
pp. 45-58 ◽  
Author(s):  
Hui Tian ◽  
Xiujuan Liang ◽  
Yan Gong ◽  
Zhuang Kang ◽  
Hongtao Jin
Keyword(s):  
Risk Assessment ◽  
Health Risk ◽  
Human Health ◽  
Health Risk Assessment ◽  
Health Risks ◽  
Human Health Risk ◽  
Nitrate Pollution ◽  
Assessment Model ◽  
Potential Health ◽  
Skin Contact

High concentrations of nitrate in groundwater pose a threat to human health. To quantify groundwater nitrate pollution in China's Changchun New District and evaluate its human health risks, 98 groundwater samples were collected and analyzed. The spatial distribution of groundwater chemical components was variable with concentrations descending from TDS > HCO3− > Ca2+ > NO3− > SO42- > Na+ > Cl− > Mg2+ > K+ > NO2− > NH4+. Notably, NO3− concentrations ranged from 0.02–492.72 mg/L and averaged 98.62 mg/L. Over 50% of samples exceeded the Quality Standard for Groundwater of China Class III N threshold (20 mg/L). Principal component analysis determined that NO3 contamination was primarily due to the excessive use of fertilizers in agriculture. A human health risk assessment model was used to assess the potential health risks of groundwater NO3− via drinking water and skin contact pathways. Approximately 90% of adults, 66% of children, and 45% of infants had acceptable health risks in the study area. NO3− exposure risk in the towns of Longjia and Xiyingcheng was the highest, while urban areas tended to have lower exposures. The health risks of residents, especially minors and infants, were concerned.

Microbial and toxic metal contamination in well drinking water: potential health risk in selected areas of Kohat, Pakistan

2016 ◽  
Vol 14 (4) ◽  
pp. 394-400 ◽  
Author(s):  
Niaz Muhammad ◽  
Noureen Banoori ◽  
Ali Akbar ◽  
Azizullah Azizullah ◽  
Mumtaz Khan ◽  
...  
Keyword(s):  
Drinking Water ◽  
Health Risk ◽  
Water Potential ◽  
Metal Contamination ◽  
Toxic Metal ◽  
Potential Health ◽  
Potential Health Risk ◽  
Toxic Metal Contamination

Detection of Odour and Health Risk Perception of Drinking Water

1999 ◽  
Vol 40 (6) ◽  
pp. 91-98 ◽  
Author(s):  
Cynthia G. Jardine ◽  
Nancy Gibson ◽  
Steve E. Hrudey
Keyword(s):  
Drinking Water ◽  
Health Risk ◽  
Risk Perceptions ◽  
Information Source ◽  
Strong Connection ◽  
Potential Health ◽  
Potential Health Risk ◽  
Municipal Water Supply ◽  
The Media ◽  
Health Risk Perception

A substantial proportion of drinking water consumers have resorted to alternatives to their municipal water supply as their source of drinking water. Although health risk perceptions associated with drinking water are ranked low in comparison with other risks, they are subject to influence from the media as a primary information source. Although there may not be a strong connection between odour detection and health risk, consumers who make such a connection cannot be dismissed as irrational. There are substantial grounds to support the possibility that unfamiliar drinking water odours might reveal the presence of substances which pose a potential health risk. Failure to provide credible evidence as to the actual causes of odours will leave water utilities in an indefensible position on associated health risk.

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