Journal of water and health最新文献

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Comparing cultural perceptions of drinking water safety with water quality in urban and rural Guatemalan communities. 比较危地马拉城市和农村社区对饮用水安全与水质的文化观念。
IF 2.4 4区 环境科学与生态学
Journal of water and health Pub Date : 2025-09-01 Epub Date: 2025-09-06 DOI: 10.2166/wh.2025.056
Brooke M Ramay, Carmen Castillo, Paulina Garzaro, Natalie Fahsen, Lucas Santos, Andrea Gomez, Juan Carlos Romero, Joyce Lu, Celia Cordón-Rosales, Douglas R Call, Mark A Caudell
{"title":"Comparing cultural perceptions of drinking water safety with water quality in urban and rural Guatemalan communities.","authors":"Brooke M Ramay, Carmen Castillo, Paulina Garzaro, Natalie Fahsen, Lucas Santos, Andrea Gomez, Juan Carlos Romero, Joyce Lu, Celia Cordón-Rosales, Douglas R Call, Mark A Caudell","doi":"10.2166/wh.2025.056","DOIUrl":"https://doi.org/10.2166/wh.2025.056","url":null,"abstract":"<p><p>Access to safe drinking water remains a major public health challenge in low- and middle-income countries (LMICs), with 4.4 billion people lacking safely managed sources. Contaminated water contributes to infectious diseases and antimicrobial resistance, increasing morbidity and mortality. While interventions guided by the WHO/UNICEF Joint Monitoring Programme (JMP) aim to improve water access, sociocultural factors influencing water use are likely to play a critical role in developing effective interventions. To assess how sociocultural factors can inform water safety interventions, this study combines cultural consensus analysis of drinking water quality with microbiological assessments of water quality in 30 urban and 30 rural households in Quetzaltenango. Water samples were tested for coliforms, <i>Escherichia coli</i>, and antimicrobial-resistant Enterobacterales. Participants ranked bottled water as the safest source, yet laboratory analysis revealed bottled water had the highest coliform contamination (83.3%). Piped household water, another highly ranked source, exhibited high <i>E. coli</i> contamination (27.8%), presence of extended-spectrum beta-lactamase (ESBL) Enterobacterales (11.1%), and presence of carbapenem-resistant Enterobacterales (11.1%). While JMP guidelines are essential for water safety assessments, sociocultural perceptions play a crucial role in shaping water consumption behaviors. Integrating ethnographic methods with water quality assessments can lead to the design of more nuanced water safety interventions.</p>","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"23 9","pages":"1042-1054"},"PeriodicalIF":2.4,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145199767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparative study of residual chlorine, temperature and pH effect on swimming pools contamination by some pathogenic bacteria: Study of a case in Algeria. 余氯、温度和pH值对某些致病菌污染游泳池影响的比较研究——以阿尔及利亚的一例为例。
IF 2.4 4区 环境科学与生态学
Journal of water and health Pub Date : 2025-08-01 Epub Date: 2025-07-31 DOI: 10.2166/wh.2025.095
Lamia Lounaci
{"title":"Comparative study of residual chlorine, temperature and pH effect on swimming pools contamination by some pathogenic bacteria: Study of a case in Algeria.","authors":"Lamia Lounaci","doi":"10.2166/wh.2025.095","DOIUrl":"https://doi.org/10.2166/wh.2025.095","url":null,"abstract":"<p><p>Despite the various methods used to disinfect swimming pool water, contamination by human health pathogens remains a serious problem. This study aims to compare the physicochemical parameters (residual chlorine level, temperature, and pH) during swimming with the significant contamination of swimming pool water in Blida city, Algeria, by five pathogenic bacteria harmful to human health: <i>Escherichia coli</i>, <i>Enterococcus faecalis</i>, <i>Staphylococcus aureus, Pseudomonas aeruginosa</i>, and <i>Salmonella</i> species. The comparison of pathogenic bacteria averages (colony-forming units (CFU)/100 mL) in the analyzed pool waters with residual chlorine levels (0- < 1 mg/mL) showed that <i>E. faecalis</i>, <i>P. aeruginosa</i>, and <i>S. aureus</i> had significant differences (<i>p</i> ≤ 0.05). Similarly, <i>E. faecalis</i> and <i>P. aeruginosa</i> showed significant differences with pH levels (6.9-7.9), and only <i>P. aeruginosa</i> showed significant differences with temperature (24-29 °C). This study precisely highlights the relationship between residual chlorine, temperature, pH variations, and contamination by the five pathogenic bacteria despite proper water treatment before swimming.</p>","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"23 8","pages":"968-980"},"PeriodicalIF":2.4,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144958895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Assessment of Escherichia coli contamination risk across different environmental media in rural Ethiopia. 埃塞俄比亚农村不同环境介质中大肠杆菌污染风险评估。
IF 2.4 4区 环境科学与生态学
Journal of water and health Pub Date : 2025-08-01 Epub Date: 2025-07-21 DOI: 10.2166/wh.2025.050
Alazar Negash Horecha, Seblework Mekonen
{"title":"Assessment of <i>Escherichia coli</i> contamination risk across different environmental media in rural Ethiopia.","authors":"Alazar Negash Horecha, Seblework Mekonen","doi":"10.2166/wh.2025.050","DOIUrl":"https://doi.org/10.2166/wh.2025.050","url":null,"abstract":"<p><p><i>Escherichia coli (E. coli)</i> pathotypes, particularly enteropathogenic and enterotoxigenic strains, are among the leading causes of moderate-to-severe diarrhea in low- and middle-income countries (LMICs). These pathogens are commonly transmitted through environmental media such as contaminated water, soil, and hands, often due to poor sanitation and hygiene. In this first phase of an ongoing longitudinal study, we conducted a cross-sectional assessment of <i>E. coli</i> contamination across multiple environmental compartments in 41 rural households in Daro Lebu Woreda, West Hararghe Zone, Eastern Ethiopia. Environmental samples were collected from drinking water, indoor and outdoor soil, and hand rinses of children under two and their mothers or caregivers to quantify <i>E. coli</i> levels and explore associations between contamination and household-level risk factors. From the data we collected, the source and risk factors for <i>E. coli</i> contamination are not readily apparent. These findings underscore the complexity of fecal contamination pathways in rural settings and highlight the need for integrated, multi-pathway interventions. Improving household hygiene behaviors, ensuring safe water storage, and upgrading sanitation infrastructure could significantly reduce exposure to enteric pathogens. Further large-scale and longitudinal studies are essential to better understand contamination dynamics and inform transformative WASH (Water, Sanitation, and Hygiene) interventions.</p>","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"23 8","pages":"940-951"},"PeriodicalIF":2.4,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144958890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The impact of radionuclides on water consumption in some water samples in the Ashanti Region, Ghana. 放射性核素对加纳阿散蒂地区一些水样耗水量的影响。
IF 2.4 4区 环境科学与生态学
Journal of water and health Pub Date : 2025-08-01 Epub Date: 2025-07-22 DOI: 10.2166/wh.2025.200
Joseph Amanfo Ofori, E C K Addison, Christiana Subaar, Ezekiel A Ashai, Evans Asamoah
{"title":"The impact of radionuclides on water consumption in some water samples in the Ashanti Region, Ghana.","authors":"Joseph Amanfo Ofori, E C K Addison, Christiana Subaar, Ezekiel A Ashai, Evans Asamoah","doi":"10.2166/wh.2025.200","DOIUrl":"https://doi.org/10.2166/wh.2025.200","url":null,"abstract":"<p><p><i>Objective</i>: The primary aim of this study is to assess the presence of natural radionuclides in water samples from selected towns in the Ashanti Region, Ghana. The study further aims to measure the physical parameters, determine the activity concentration of radionuclides, compute the annual committed effective dose, and assess cancer risk. <i>Methods</i>: The study utilizes gamma spectrometry with a high-purity germanium detector at the Ghana Atomic Energy Commission. The samples were taken from 5 major rivers and 25 mechanized boreholes selected from 5 Colleges of Education and 21 Senior High Schools in the Ashanti Region of Ghana. <i>Results</i>: The average activity concentrations were 1.31, 0.65, and 6.72 Bq/L for borehole water, and 1.42, 0.83, and 10.32 Bq/L for surface water, respectively. The average annual committed doses were estimated for the various age groups, less than 1, 1-2, 2-7, 7-12, 12-17, and above 17 years as 2,194, 254, 185.96, 164.68, 22.40, 232.40 μS/y and 1,825, 171, 130, 118, 168, 169 μS/y for surface water and borehole, respectively. <i>Implication</i>: The results suggest continuous monitoring for early detection of any threat to radiological health hazards in the communities under study.</p>","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"23 8","pages":"907-922"},"PeriodicalIF":2.4,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144958893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Coupling WQI and multivariate statistical approaches for key parameter identification and human health risk assessment in the longevity region of Hechi City, China. 河池长寿区关键参数识别与人类健康风险评价的WQI与多元统计方法耦合
IF 2.4 4区 环境科学与生态学
Journal of water and health Pub Date : 2025-08-01 Epub Date: 2025-07-11 DOI: 10.2166/wh.2025.041
Yanqing Zhang, Xizhi Nong, Huaxin Zhu, Jian Wang
{"title":"Coupling WQI and multivariate statistical approaches for key parameter identification and human health risk assessment in the longevity region of Hechi City, China.","authors":"Yanqing Zhang, Xizhi Nong, Huaxin Zhu, Jian Wang","doi":"10.2166/wh.2025.041","DOIUrl":"https://doi.org/10.2166/wh.2025.041","url":null,"abstract":"<p><p>This study addresses limitations in traditional water quality indices (WQIs) by developing a simplified yet accurate WQI model (WQI<sub>min</sub>) that captures spatiotemporal dynamics and prioritizes health-risk drivers in ecologically sensitive regions. Monitored over 2021-2023 at 16 stations in Hechi City, China (a globally recognized longevity area), 17 water quality parameters were analyzed. Using multivariate statistics, WQI<sub>min</sub> reduced parameters from 17 to 7 key drivers (<i>P</i> < 0.001) while maintaining 99.3% prediction accuracy. Results revealed excellent water quality (overall WQI = 95.10; station range: 93.22-96.44) meeting China's Class I standards. Heavy metal concentrations were in the following order: Zn > As > Cr > Cu > Se > Pb > Cd > Hg, with chromium (Cr) dominating health risks at 73.4% (adults) and 73.41% (children), followed by arsenic (As) at 26.47% (adults) and 26.46% (children). Despite compliance with surface water standards, trace contaminants like Cr and As posed disproportionate risks, highlighting the need for targeted monitoring in longevity regions. This innovative approach resolves conventional WQI aggregation issues, providing policymakers with a cost-effective tool to identify critical pollutants and optimize resource allocation for water protection.</p>","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"23 8","pages":"923-939"},"PeriodicalIF":2.4,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144958915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Warming drinking water distribution systems in the context of climate change: a scoping review on health-related microbial and chemical water quality effects. 气候变化背景下变暖的饮用水分配系统:与健康有关的微生物和化学水质影响的范围审查。
IF 2.4 4区 环境科学与生态学
Journal of water and health Pub Date : 2025-08-01 Epub Date: 2025-07-31 DOI: 10.2166/wh.2025.059
Jesse Limaheluw, Monique van der Aa
{"title":"Warming drinking water distribution systems in the context of climate change: a scoping review on health-related microbial and chemical water quality effects.","authors":"Jesse Limaheluw, Monique van der Aa","doi":"10.2166/wh.2025.059","DOIUrl":"10.2166/wh.2025.059","url":null,"abstract":"<p><p><b>Background:</b> Warming caused by climate change can impact human health risks associated with drinking water. This review aimed to synthesize the evidence about the effects of increasing temperatures in the drinking water distribution system (DWDS) on health-related chemical and microbial water quality parameters. We also identified adaptation options. <b>Methods:</b> We conducted a scoping review of quantitative peer-reviewed studies published up to March 2023, and research reports published up to April 2024, specifically looking at a DWDS or comparable experimental conditions. <b>Results:</b> We included 28 studies in this review. Evidence focused on chlorinated systems in higher-income countries. Warming has variable effects on microbial communities within the DWDS. Accumulation and release of heavy metals may increase at higher temperatures, depending on pipe materials. Warming also speeds up the decay of chlorine and chloramine, affecting the formation of disinfectant byproducts and the potential of microbial (re)growth. Multiple effects can occur simultaneously, requiring an integrated adaptation approach. Technical and institutional adaptation options, such as improved removal of dissolved organic carbon during treatment covering the entire DWDS were identified. <b>Discussion:</b> With increasing climate change, the identified effects can become more prominent without adaptation. However, no included studies quantified how these effects would translate into human health impacts.</p>","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"23 8","pages":"952-967"},"PeriodicalIF":2.4,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144958935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corrigendum: Journal of Water and Health, 21 (9), 1342-1356: Molecular characterisation and potential pathogenicity analysis of Acanthamoeba isolated from recreational lakes in Peninsular Malaysia, Rohaya Abdul Halim, Rosnani Hanim Mohd Hussain, Shafiq Aazmi, Hasseri Halim, Naveed Ahmed Khan, Ruqaiyyah Siddiqui and Tengku Shahrul Anuar, https://dx.doi.org/10.2166/wh.2023.186. 更正:水与健康杂志,21(9),1342-1356:马来西亚半岛休闲湖泊棘阿米巴分离的分子特征和潜在致病性分析,Rohaya Abdul Halim, Rosnani Hanim Mohd Hussain, Shafiq Aazmi, Hasseri Halim, Naveed Ahmed Khan, Ruqaiyyah Siddiqui和Tengku Shahrul Anuar, https://dx.doi.org/10.2166/wh.2023.186。
IF 2.4 4区 环境科学与生态学
Journal of water and health Pub Date : 2025-07-01 DOI: 10.2166/wh.2025.003
{"title":"Corrigendum: <i>Journal of Water and Health</i>, 21 (9), 1342-1356: Molecular characterisation and potential pathogenicity analysis of <i>Acanthamoeba</i> isolated from recreational lakes in Peninsular Malaysia, Rohaya Abdul Halim, Rosnani Hanim Mohd Hussain, Shafiq Aazmi, Hasseri Halim, Naveed Ahmed Khan, Ruqaiyyah Siddiqui and Tengku Shahrul Anuar, https://dx.doi.org/10.2166/wh.2023.186.","authors":"","doi":"10.2166/wh.2025.003","DOIUrl":"https://doi.org/10.2166/wh.2025.003","url":null,"abstract":"","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"23 7","pages":"905"},"PeriodicalIF":2.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144753651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Health risks associated with seasonal water quality in the Hasbani River, Lebanon: a physicochemical and microbiological analysis. 与黎巴嫩哈斯巴尼河季节性水质有关的健康风险:理化和微生物分析。
IF 2.4 4区 环境科学与生态学
Journal of water and health Pub Date : 2025-07-01 DOI: 10.2166/wh.2025.320
Israa Dib, Mohamad Fakih, Hiba Noureddine, Farah Nassib Nasr, Rana El Hajj, Alexandre Livet, Vanessa Alphonse, Noureddine Bousserrhine
{"title":"Health risks associated with seasonal water quality in the Hasbani River, Lebanon: a physicochemical and microbiological analysis.","authors":"Israa Dib, Mohamad Fakih, Hiba Noureddine, Farah Nassib Nasr, Rana El Hajj, Alexandre Livet, Vanessa Alphonse, Noureddine Bousserrhine","doi":"10.2166/wh.2025.320","DOIUrl":"https://doi.org/10.2166/wh.2025.320","url":null,"abstract":"<p><p>In Lebanon, polluted water resources are commonly used for various purposes. Hasbayya, a district located in southern Lebanon, is known for being surrounded by the Hasbani River, which serves as the primary source of domestic water for households in the area. This water is used without undergoing any treatment. The objective of this study was to assess the quality of the Hasbani River and domestic water in Hasbayya, South Lebanon. A total of 20 water samples were collected from households and 15 samples from different sites along the river during three seasons. These samples were analyzed for physical parameters (pH, total dissolved solids, and temperature) and bacterial parameters (total bacterial growth and total and fecal coliforms). Microscopy was employed to inspect the presence of the parasitic <i>Entamoeba</i> spp. contamination. The metallic quality of samples was evaluated using inductively coupled plasma mass spectrometry. The findings demonstrated that all samples obtained from Hasbayya and Hasbani exhibited significant bacterial and parasitological contamination. The results of metallic analysis indicated that certain water samples displayed elevated iron levels. In conclusion, the potable water in Hasbayya does not meet the national and international guidelines for safe drinking water and should not be consumed.</p>","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"23 7","pages":"853-860"},"PeriodicalIF":2.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144753653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Corrigendum: Journal of Water and Health, 22 (12), 2289-2303: Assessment of in vitro dynamics of pathogenic environmental Acanthamoeba T4 and T9 genotypes isolated from three recreational lakes in Klang Valley, Malaysia over the HaCaT cell monolayer, Rohaya Abdul Halim, Hasseri Halim, Rosnani Hanim Mohd Hussain, Shafiq Aazmi, Naveed Ahmed Khan, Ruqaiyyah Siddiqui and Tengku Shahrul Anuar, https://dx.doi.org/10.2166/wh.2024.162. 更正:水与卫生杂志,22(12),2289-2303:基于HaCaT细胞层的马来西亚巴生谷3个休闲湖泊病原环境棘阿米巴T4和T9基因型的体外动态评估,Rohaya Abdul Halim, Hasseri Halim, Rosnani Hanim Mohd Hussain, Shafiq Aazmi, Naveed Ahmed Khan, Ruqaiyyah Siddiqui和Tengku Shahrul Anuar, https://dx.doi.org/10.2166/wh.2024.162。
IF 2.4 4区 环境科学与生态学
Journal of water and health Pub Date : 2025-07-01 DOI: 10.2166/wh.2025.004
{"title":"Corrigendum: <i>Journal of Water and Health</i>, 22 (12), 2289-2303: Assessment of <i>in vitro</i> dynamics of pathogenic environmental <i>Acanthamoeba</i> T4 and T9 genotypes isolated from three recreational lakes in Klang Valley, Malaysia over the HaCaT cell monolayer, Rohaya Abdul Halim, Hasseri Halim, Rosnani Hanim Mohd Hussain, Shafiq Aazmi, Naveed Ahmed Khan, Ruqaiyyah Siddiqui and Tengku Shahrul Anuar, https://dx.doi.org/10.2166/wh.2024.162.","authors":"","doi":"10.2166/wh.2025.004","DOIUrl":"https://doi.org/10.2166/wh.2025.004","url":null,"abstract":"","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"23 7","pages":"906"},"PeriodicalIF":2.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144753652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mitigating Legionella spp. risk in an Australian healthcare facility using on-site electrochemical water disinfection. 在澳大利亚医疗机构使用现场电化学水消毒减轻军团菌的风险。
IF 2.4 4区 环境科学与生态学
Journal of water and health Pub Date : 2025-07-01 Epub Date: 2025-06-10 DOI: 10.2166/wh.2025.395
Sopheak Hem, Barbara Drigo, Sotirios Vasileiadis, Gianluca Brunetti, Euan Smith, Sergio Ferro, Enzo Lombi, Nicholas J Ashbolt, Erica Donner
{"title":"Mitigating <i>Legionella</i> spp. risk in an Australian healthcare facility using on-site electrochemical water disinfection.","authors":"Sopheak Hem, Barbara Drigo, Sotirios Vasileiadis, Gianluca Brunetti, Euan Smith, Sergio Ferro, Enzo Lombi, Nicholas J Ashbolt, Erica Donner","doi":"10.2166/wh.2025.395","DOIUrl":"https://doi.org/10.2166/wh.2025.395","url":null,"abstract":"<p><p><i>Legionella</i> spp. are Gram-negative bacteria present in natural and engineered water systems that can cause legionellosis (Legionnaires' disease and Pontiac fever). When present in biofilms of healthcare facilities, they are a likely source of legionellosis for immunocompromised patients. The objective of this study was to evaluate an electrochemical water disinfection system to produce and dose hypochlorous acid (HOCl) to reduce this risk in a hospital with systemic <i>Legionella</i> spp. contamination. Furthermore, <i>Legionella</i> spp. colony counts were compared to quantitative polymerase chain reaction (qPCR) results. Before and after implementing the disinfection system, tap water and pipe biofilms were analysed for microbial contamination. Post-implementation monitoring continued for over six months, assessing microbial quality using heterotrophic colony counts, <i>Legionella</i> serotyping, and qPCR targeting total bacteria (16S rRNA) and <i>Legionella</i> spp. By the third sampling event (22 days post-commissioning), water quality consistently improved, with no culture-positive <i>Legionella</i> counts observed thereafter. qPCR analysis confirmed these results, proving more sensitive and reliable than traditional methods. The qPCR assays for <i>Legionella</i> spp. and bacterial 16S rRNA were also cost-effective for system optimisation and diagnostics.</p>","PeriodicalId":17436,"journal":{"name":"Journal of water and health","volume":"23 7","pages":"877-893"},"PeriodicalIF":2.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144753654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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