scholarly journals Evaluation of Human Health Risks Associated with Exposure to Disinfection by-Products (Dbps) in Drinking Water of Wassit Province Southeast Iraq

2018 ◽  
Vol 15 (3) ◽  
pp. 270-277
Author(s):  
Baghdad Science Journal
Keyword(s):  
Drinking Water ◽  
Human Health ◽  
Human Health Risk ◽  
World Health ◽  
Mean Values ◽  
Guideline Value ◽  
Exposure Routes ◽  
Health Organization ◽  
Risk Of Cancer ◽  
By Products

The toxicological risks and lifetime cancer risks associated with exposure to disinfection by-products (DBPs) including Halloacetic acids (HAAs) and trihalomethanes (THMs) compounds by drinking water in several districts in Wassit Province were estimated. The seasonal variation of HAAs and THMs compounds in drinking water have indicated that the mean values for total HAAs (THAAs) and total THMs (TTHMs) ranged from 43.2 to 72.4 mg/l and from 40 to 115.5 mg/l, respectively. The World health organization index for additive toxicity approach was non-compliant with the WHO guideline value in summer and autumn seasons and this means that THMs concentration has adverse toxic health effects. The multi-pathway of lifetime human health risk of cancer credited to THMs and HAAs in drinking water via three exposure routes for THMs and only one exposure route for HAAs was evaluated and found to be 6.13×10-4 and 1.78×10-4 respectively and these values were higher than the US.EPA range of concern limit of 1×10-6. The risk ratio of THAAs to TTHMs was 3.44. Also, the highest cancer risk was recorded for BDCM followed by DBCM, CF, TCAA, DCAA, and BF.

scholarly journals Manganese in potable water of nine districts, Bangladesh: Human health risk

2021 ◽  
Author(s):  
Md. Aminur Rahman ◽  
Md. Abul Hashem ◽  
Md. Sohel Rana ◽  
Md. Rashidul Islam
Keyword(s):  
Drinking Water ◽  
Human Health ◽  
Water Samples ◽  
Potable Water ◽  
Hazard Quotient ◽  
Human Health Risk ◽  
World Health ◽  
Well Water ◽  
Tube Well ◽  
Health Organization

Abstract Safe drinking water is directly linked to good human health. An excessive amount of manganese (Mn) in drinking water supplies causes people show symptoms of neurotoxicity. In this study, the level of Mn in potable water sourced from tube wells located in 9 (nine) districts of Bangladesh was monitored. In total 170 (one hundred and seventy) water samples were collected and Mn was quantified by atomic absorption spectroscopy (AAS). The levels of Mn found in the tube well water samples of Sirajganj, Meherpur, Chuadanga, Jhenaidah, Magura, Faridpur, Jashore, Satkhira, and Khulna were 0.37–1.86, 0.10–4.11, 0.30–0.76, 0.26–0.94, 0.01–0.18, 0.21–1.78, 0.08–1.23, 0.05–0.27 and 0.01–2.11 mg/L, respectively. Results revealed that Mn level was beyond the highest contaminated levels of 0.1 mg/L and 0.4 mg/L, which are recommended by Bangladesh Drinking Standard (BDS) and World Health Organization (WHO), respectively. The maximum Mn contaminated level reached up to 4.11 mg/L (mean: 0.53 mg/L). The Mn level in tube well water exceeded 51.1% and 75.9% set by the recommended value of WHO and BDS, respectively. Furthermore, the calculated hazard quotient (HQ) value for Mn was observed to be greater than unity, indicating both children and adults risked potential non-carcinogenic health issues. The water supply authorities should take steps to provide Mn-free drinking water for communities.

scholarly journals Estimating Health Risks to Children Associated with Recreational Play on Oil Spill-Contaminated Beaches

2020 ◽  
Vol 18 (1) ◽  
pp. 126
Author(s):  
Tanu Altomare ◽  
Patrick M. Tarwater ◽  
Alesia C. Ferguson ◽  
Helena M. Solo-Gabriele ◽  
Kristina D. Mena
Keyword(s):  
Human Health ◽  
Oil Spill ◽  
Health Risks ◽  
Human Health Risk ◽  
Health Study ◽  
Oral Exposure ◽  
Limited Information ◽  
Risk Estimates ◽  
Exposure Routes ◽  
Risk Of Cancer

The human health impact from exposure to contaminated shorelines following an oil spill event has been investigated to some extent. However, the health risks to children have largely been characterized through the use of surveys and extrapolation from adult health outcomes. There is limited information on children’s behaviors during beach play requiring assumptions made based on observations from play activities in home settings. The Beach Exposure and Child Health Study (BEACHES) quantified specific beach activities that can be used to inform human health risk assessments of children playing on beaches impacted by oil spills. The results of this study characterize children’s risk of cancer from exposure to oil spill chemicals by incorporating exposure-related information collected from the BEACHES study and by assuming oral, dermal, and inhalation exposure routes. Point risk estimates are compared with a previous, similar study that applied default exposure parameter values obtained from the published literature. The point risk estimates informed by BEACHES data are one order of magnitude lower compared with the previous risk assessment, with dermal exposures the overall risk driver in both. Additional Monte Carlo simulations evaluating the BEACHES data provide ranges of health risks with the highest estimates associated with dermal and oral exposure routes.

scholarly journals Assessment of Availability and Human Health Risk Posed by Arsenic Contaminated Well Waters from Timis-Bega Area, Romania

2017 ◽  
Vol 2017 ◽  
pp. 1-7 ◽  
Author(s):  
Marin Senila ◽  
Erika Levei ◽  
Oana Cadar ◽  
Lacrimioara Ramona Senila ◽  
Marius Roman ◽  
...  
Keyword(s):  
Drinking Water ◽  
Health Risk ◽  
Human Health ◽  
Water Samples ◽  
Human Health Risk ◽  
Water Sources ◽  
Drinking Water Source ◽  
Drinking Water Sources ◽  
Guideline Value ◽  
Well Waters

Mobilization of As from geological materials into ground and drinking water sources may represent an important threat to human health. The objective of this study was to assess the As concentration and availability in underground water used as drinking water sources. Water samples were collected from public and private wells in Timis-Bega area of Pannonian Basin, West Romania. Total-dissolved As measured after “classical” filtration of water samples was in the range of 0.10–168 μg L−1, thus exceeding the guideline value in majority of the samples. The aim of this study was also to assess the “truly dissolved” concentrations of As considered as available concentrations, in well waters, after passive sampling by Diffusive Gradients in Thin-films (DGT). The results showed that over 70% of total-dissolved As is in available forms. The obtained data were used to evaluate the risks of using the wells as drinking water source. Hazard quotients for ingestion and dermal pathways and hazard index (HI) for exposure to As were calculated. The HI values > 1 found that majority of samples indicated a health risk for local residents.

scholarly journals Assessing Cadmium and Chromium Concentrations in Drinking Water to Predict Health Risk in Malaysia

2020 ◽  
Vol 17 (8) ◽  
pp. 2966 ◽  
Author(s):  
Minhaz Farid Ahmed ◽  
Mazlin Bin Mokhtar
Keyword(s):  
Drinking Water ◽  
Health Risk ◽  
Human Health ◽  
Aquatic Environment ◽  
Tap Water ◽  
Hazard Quotient ◽  
Human Health Risk ◽  
Quality Standard ◽  
World Health ◽  
Lifetime Cancer Risk

Although toxic Cd (cadmium) and Cr (chromium) in the aquatic environment are mainly from natural sources, human activities have increased their concentrations. Several studies have reported higher concentrations of Cd and Cr in the aquatic environment of Malaysia; however, the association between metal ingestion via drinking water and human health risk has not been established. This study collected water samples from four stages of the drinking water supply chain at Langat River Basin, Malaysia in 2015 to analyze the samples by inductivity coupled plasma mass spectrometry. Mean concentrations of Cd and Cr and the time-series river data (2004–2014) of these metals were significantly within the safe limit of drinking water quality standard proposed by the Ministry of Health Malaysia and the World Health Organization. Hazard quotient (HQ) and lifetime cancer risk (LCR) values of Cd and Cr in 2015 and 2020 also indicate no significant human health risk of its ingestion via drinking water. Additionally, management of pollution sources in the Langat Basin from 2004 to 2015 decreased Cr concentration in 2020 on the basis of autoregression moving average. Although Cd and Cr concentrations were found to be within the safe limits at Langat Basin, high concentrations of these metals have been found in household tap water, especially due to the contamination in the water distribution pipeline. Therefore, a two-layer water filtration system should be introduced in the basin to achieve the United Nations Sustainable Development Goals (SDGs) 2030 agenda of a better and more sustainable future for all, especially via SDG 6 of supplying safe drinking water at the household level.

scholarly journals Evaluation of Drinking Water Quality in Al Wahda Treatment Plant in Baghdad City- Iraq

2021 ◽  
Vol 27 (9) ◽  
pp. 38-50
Author(s):  
Nisreen Yaseen Mohammed ◽  
Khalid Adel Abdulrazzaq
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Drinking Water Quality ◽  
World Health ◽  
Mean Values ◽  
Acceptable Quality ◽  
The Mean ◽  
Health Organization

This study aims to evaluate drinking water quality at the Al Wahda plant (WTP) in Baghdad city. A conventional water treatment plant with an average flow rate of 72.82 MLD. Water samples were taken from the influent and effluent of the treatment plant and analyzed for some physicochemical and biological parameters during the period from June to November 2020. The results of the evaluation indicate that treated water has almost the same characteristics as raw water; in other terms, the plant units do not remove pollutants as efficiently as intended. Based on this, the station appears to be nothing more than a series of water passage units. However, apart from Total dissolved solids, the mean values of all parameters in the study were of acceptable quality in accordance with World Health Organization (WHO) guidelines.

Spatial variations of human health risk associated with exposure to chlorination by-products occurring in drinking water

2011 ◽  
Vol 92 (3) ◽  
pp. 892-901 ◽  
Author(s):  
Christelle Legay ◽  
Manuel J. Rodriguez ◽  
Rehan Sadiq ◽  
Jean B. Sérodes ◽  
Patrick Levallois ◽  
...  
Keyword(s):  
Drinking Water ◽  
Health Risk ◽  
Human Health ◽  
Human Health Risk ◽  
Spatial Variations ◽  
By Products

scholarly journals Assessment of mercury contamination in Brycon falcatus (Characiformes: Bryconidae) and human health risk by consumption of this fish from the Teles Pires River, Southern Amazonia

2018 ◽  
Vol 16 (1) ◽  
Author(s):  
Liliane S. de Matos ◽  
João Otávio S. Silva ◽  
Daniele Kasper ◽  
Lucélia N. Carvalho
Keyword(s):  
Human Health ◽  
Human Health Risk ◽  
Well Being ◽  
Mercury Contamination ◽  
World Health ◽  
Hepatosomatic Index ◽  
The Mean ◽  
Southern Amazonia ◽  
Health Organization ◽  
Health And Well Being

ABSTRACT Brycon falcatus is one of the most highly consumed species of fish within the region in the Teles Pires basin, and has great commercial importance in sport and professional artisanal fishing. The objective of this study was to analyze the presence and concentration of total mercury (THg) in the muscle, liver and gills of B. falcatus, and calculate the risk to human health of THg contamination from ingestion of the fish. THg concentrations were similar in the liver (0.076 mg kg-1) and muscle (0.052 mg kg-1), and higher than in the gills (0.009 mg kg-1). The levels of HgT present in B. falcatus tissues did not influence weight gain and nutritional status. Based on the condition factor, weight and length ratio and hepatosomatic index, it seems that the concentrations of THg did not influence the health and well-being of B. falcatus collected in the Teles Pires River basin. THg concentrations in the muscle of B. falcatus are below the limit recommended by the World Health Organization for people who consume until 250 g of fish per week. The risk of deleterious effects on human health may exist if there is a greater consumption of B. falcatus such as 340 g/day, that is the mean of fish consumption by indigenous and riverine.

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