Global assessment of chemical quality of drinking water: The case of trihalomethanes

Villanueva, Cristina M.; Evlampidou, Iro; Ibrahim, Fathelrahman; Donat‐Vargas, Carolina; Valentín, Antònia; Tugulea, Anca-Maria; Echigo, Shinya; Jovanović, Dragana; Lebedev, A. T.; Lemus-Pérez, Mildred F.; Rodríguez-Susa, Manuel S.; Luzati, Arben; Nery, Telma de Cássia Dos Santos; Pastén, Pablo; Quiñones, Marisa; Regli, Stig; Weisman, Richard; Dong, Shoukun; Ha, Mina; Phattarapattamawong, Songkeart; Manasfi, Tarek; Musah, Shaibu-Imodagbe Egbenya; Eng, Amanda; Janák, Karel; Rush, Samantha C; Reckhow, David A.; Krasner, Stuart W.; Víneis, Paolo; Richardson, Susan D.; Kogevinas, Manolis

doi:10.1016/j.watres.2023.119568

Cited by 24 publications

(3 citation statements)

References 23 publications

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“…Countries and territories that specify their own parameter values for drinking-water quality do so in a variety of formats: regulations, standards, specifications, laws, decrees, requirements, and norms. With very few exceptions, the majority set regulatory values equal to or more stringent than the WHO Guideline [ 9 , 10 ].…”

Section: Global Drinking Water Standardsmentioning

confidence: 99%

US drinking water quality: exposure risk profiles for seven legacy and emerging contaminants

Levin,

Villanueva,

Beene

et al. 2023

J Expo Sci Environ Epidemiol

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Background Advances in drinking water infrastructure and treatment throughout the 20th and early 21st century dramatically improved water reliability and quality in the United States (US) and other parts of the world. However, numerous chemical contaminants from a range of anthropogenic and natural sources continue to pose chronic health concerns, even in countries with established drinking water regulations, such as the US. Objective/Methods In this review, we summarize exposure risk profiles and health effects for seven legacy and emerging drinking water contaminants or contaminant groups: arsenic, disinfection by-products, fracking-related substances, lead, nitrate, per- and polyfluorinated alkyl substances (PFAS) and uranium. We begin with an overview of US public water systems, and US and global drinking water regulation. We end with a summary of cross-cutting challenges that burden US drinking water systems: aging and deteriorated water infrastructure, vulnerabilities for children in school and childcare facilities, climate change, disparities in access to safe and reliable drinking water, uneven enforcement of drinking water standards, inadequate health assessments, large numbers of chemicals within a class, a preponderance of small water systems, and issues facing US Indigenous communities. Results Research and data on US drinking water contamination show that exposure profiles, health risks, and water quality reliability issues vary widely across populations, geographically and by contaminant. Factors include water source, local and regional features, aging water infrastructure, industrial or commercial activities, and social determinants. Understanding the risk profiles of different drinking water contaminants is necessary for anticipating local and general problems, ascertaining the state of drinking water resources, and developing mitigation strategies. Impact statement Drinking water contamination is widespread, even in the US. Exposure risk profiles vary by contaminant. Understanding the risk profiles of different drinking water contaminants is necessary for anticipating local and general public health problems, ascertaining the state of drinking water resources, and developing mitigation strategies.

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Section: Global Drinking Water Standardsmentioning

confidence: 99%

US drinking water quality: exposure risk profiles for seven legacy and emerging contaminants

Levin,

Villanueva,

Beene

et al. 2023

J Expo Sci Environ Epidemiol

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“…In Colombia, evaluations of water supply quality and toxicity have been conducted in both urban [30] and rural areas [31]. To ensure the quality of drinking water, maximum acceptable levels were established for physical, chemical, and bacteriological characteristics.…”

Section: Introductionmentioning

confidence: 99%

Luminescence Toxicological Analysis of Water Supply Systems in Dispersed Rural Areas: A Case Study in Boyacá, Colombia

Ramos-Parra,

Díaz-Gómez,

Mesa-Torres

et al. 2023

Water

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The quality of water supply systems is still a major problem in developing countries, especially in rural areas. The acute bioluminescence V. fischeri inhibition assay is widely recognized as a toxicological method that can be used to detect the acute effects of different contaminants. In this study, the physicochemical characteristics and toxicology of 72 water samples collected in 18 rural aqueducts located in Boyacá (Colombia) were evaluated. The primary economic activities identified as potential influencers of water quality in the water supply basins were agriculture (n = 3), livestock (n = 2), and domestic sewage discharge (n = 1). The average luminescence inhibition rate was 66%, with a minimum of 29%, and a maximum of 97%. A total of 85% of the tested samples (n = 61) had “moderate acute hazard”, while 15% (n = 15) had “acute hazard”. A total of 95% of the aqueducts distributed water with high risk. There was a weak positive correlation between the apparent color and the V. fischeri inhibition rate (p < 0.05). The water treatments, including disinfection, and the economic activities had no correlation with the inhibition rate of luminescent bacteria. The results of this investigation can be used by sanitary authorities to incorporate future toxicological monitoring of chemical contaminants, such as humic substances and metals, into water-quality monitoring in rural areas.

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“…Obviously, there are several sources of drinking water such as surface water, ground water, bottled water, but most citizens in developed country use the public water distribution networks, therefore, a lot of the researcher's recent efforts have been concentrated on establishing drinking water quality in different areas. Several factors or combination of factors such as chemical contaminants, microbial contaminants, sediments, temperature, nutrients level or pH, are taken into consideration when drinking water quality is analyzed (Petculescu et al, 2022;Prety Debnath et al, 2022;Villanueva et al, 2023;Zhang et al, 2023). The subject presents interest, not only to researchers, but also to the European Union who has issued a new directive on the quality of water intended for human consumption (Dettori et al, 2022) and to environmental protection agency from USA that presents pointof-use (e.g., reverse osmosis, active carbon filter, etc.)…”

Section: Introductionmentioning

confidence: 99%

Microscopic characterization of residual particles from filtered drinking water and determination of statistical indicators regarding identified deposits

Crișan

Bîrleanu

et al. 2023

Front. Earth Sci.

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The study shows the findings of a microscopic examination of samples of filtered water obtained using five different types of filters. The novelty of the approach to the research carried out in this paper consisted in using of a statistical mathematical model that confers increased accuracy on the resulting values, with the aim of characterizing the efficiency and quality of drinking water filters intended for the general public for domestic consumption at the national level. Atomic force microscopy was used to carry out the analysis, and particular mathematical models were used to statistically evaluate the findings. The paper explains the methodology used, including details on the laboratory setup, the steps finished, and the tools used to accomplish the suggested goals. With an emphasis on the three dimensions of the particles—height, diameter, and arithmetic roughness—the findings from the microscopic analysis of the particle deposits on the filtered water samples are given and tabular indexed. As a result, it was feasible to use a computational mathematical model to identify the statistical indicators of the values recorded in the samples that underwent microscopical analysis. Following the application of the mathematical model, the findings were centralized, and their correlation was analyzed using graphical representations. The results led to the concrete identification of the impurity degree of drinking water filtered by consumer means.

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Global assessment of chemical quality of drinking water: The case of trihalomethanes

Cited by 24 publications

References 23 publications

US drinking water quality: exposure risk profiles for seven legacy and emerging contaminants

US drinking water quality: exposure risk profiles for seven legacy and emerging contaminants

Luminescence Toxicological Analysis of Water Supply Systems in Dispersed Rural Areas: A Case Study in Boyacá, Colombia

Microscopic characterization of residual particles from filtered drinking water and determination of statistical indicators regarding identified deposits

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