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

Water ◽  
2018 ◽  
Vol 10 (5) ◽  
pp. 641 ◽  
Author(s):  
Junhua Wu ◽  
Yi Man ◽  
Guangyi Sun ◽  
Lihai Shang
2019 ◽  
Vol 41 (5) ◽  
pp. 2281-2294
Author(s):  
Hassan Aslani ◽  
Mahsa Zarei ◽  
Hassan Taghipour ◽  
Ehsan Khashabi ◽  
Hossein Ghanbari ◽  
...  

2019 ◽  
Vol 78 ◽  
pp. 03004
Author(s):  
Miaomiao Tian ◽  
Wenzhao Li ◽  
Meijuan Ruan ◽  
Jing Wei ◽  
Weiwei Ma

Drinking water quality has become a great concern to the whole society, especially in heavily polluted rural areas. This paper analyzes the water quality of 100 water supping the US Environmental Protection Agency's (USEPA) recommended health risk assessment model. The results showed that the microbial indicators exceeded the standard in the whole year, and some of the water supply units which lead, nitrated and dissolved solids exceeding the standard. The model recommended by EPA is applied to establish risk assessment model for health risk assessment of adults in wet and dry seasons, respectively. Results of HRA indicated that carcinogenic risk of chromium was 7.61E-05a-1 and the risk value of arsenic was 9.92E-06a-1 which exceed the maximum acceptable risk level recommended by USEPA 5.0×10-5 closely to the ICPR recommendation 1.0×10-6. Meanwhile we conduct health risk assessment (HRA) on relevant non-carcinogenic indicators: nitrate is 2.95E-09a-1, the risk value of fluoride (F) is 2.49E-09a-1, the risk value of lead is 2.39E-09a-1 and copper (Cu) 9.00E-10a-1 exceeds the maximum acceptable risk level risk value recommended by USEPA 1.0×10-9. The above indicators require priority control and management of pollutants that are prioritized and managed.


Data in Brief ◽  
2018 ◽  
Vol 21 ◽  
pp. 1918-1923 ◽  
Author(s):  
Majid Radfard ◽  
Massuomeh Rahmatinia ◽  
Hamidreza Tabatabaee ◽  
Hamed Solimani ◽  
Amir Hossein Mahvi ◽  
...  

2021 ◽  
Vol 13 (12) ◽  
pp. 915-930
Author(s):  
Jessica Carmelia Mbemba Peleka ◽  
Cheikh Diop ◽  
Robert Faomowe Foko ◽  
Mouhamadou Lamine Daffe ◽  
Mamadou Fall

2021 ◽  
Vol 2 (1) ◽  
pp. 73-80
Author(s):  
Shaharuddin Mohd Sham ◽  
Muhammad Azri Mat Yusof

Nitrate is one of the compounds of nitrogen found in the nitrogen cycle that is which originates from both natural and anthropogenic sources. Most rural areas in Kelantan state still depend on well water as their primary water source. Their main economic activity is agriculture which uses high amountsof nitrate fertilizer to nurture their crops. The increased use of nitrate fertilizers has a possible risk factor associated to health problems such as methemoglobinemia and cancers. Health risk assessment can be conducted to quantify the probability of harmful effects of nitrate to individuals or populations from certain human activities. To determine levels of nitrate in groundwater and to perform health risk assessment among respondents in Keting village, Bachok district, Kelantan state. A total of 47 respondents were chosen for this study and groundwater samples in duplicates were collected from the respondents’ houses. The samples werethen analyzed by using a portable Hanna Instrument multimeter model HI98191 and probe model HI4113. while a set of questionnaireswereusedto collect information for health risk assessment of the exposure. Nitrate levels in groundwater did not exceed the maximum concentration value of Drinking Water Quality Standard (44.3 ppm nitrate – NO3) with a mean ± sd of 5.34 ± 4.94 (ppm). Spearman’s rho correlation analysis shows that only depth of well (meter) is correlated (r = - 0.348) to nitrate levels (p0.05). The Hazard Quotient (HQ)for the study population was less than 1. In terms of nitrate, the groundwater analyzed in the study area was considered safe for drinking and cooking purposes. The result for HQ indicated that the non-carcinogenic risk related to nitrate was not significant to the study population. However, nitrate levels in drinking water should be concerned by the consumers as it will give bad health impact to them in long-term exposures.


Work ◽  
2021 ◽  
pp. 1-10
Author(s):  
Lu Zhang ◽  
Lin Li

BACKGROUND: The quality and safety of drinking water directly affect the health of the local population. However, due to the limited conditions in poor rural areas, the safety of drinking water is more prominent. OBJECTIVE: It aimed to ensure the safety of drinking water quality and population health in poor rural areas. METHODS: A rural poor area was taken as an example, the drinking water plants were monitored during wet season and dry season, respectively, and the water quality indicators of rural drinking water in the city in 2019 were detected and analyzed. Finally, based on the non-carcinogenic risk and carcinogenic risk evaluation model proposed, the health risk assessment of chemical pollutants in drinking water was carried out. RESULTS: In 2019, the qualified rate of drinking water in rural areas of the city was generally low. The average annual carcinogenic risk of drinking water in poor rural areas of the city was 1.57×10–6 (a–1), and the average annual non-carcinogenic risk was 5.38×10–9 (a–1). CONCLUSION: The health risk assessment model proposed can well evaluate the health risks of drinking water. The research provides a scientific basis for the risk management of drinking water of relevant departments.


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