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Publication Metadata only Contamination of nitrate in groundwater and its potential human health: a case study of lower Mae Klong river basin, Thailand(2015-08-25) Jaturong Wongsanit; Piyakarn Teartisup; Prapeut Kerdsueb; Prapin Tharnpoophasiam; Suwalee Worakhunpiset; Kasetsart University; Mahidol University© 2015, Springer-Verlag Berlin Heidelberg. Nitrate contamination in groundwater is a worldwide problem especially in agricultural countries. Environmental factors, such as land-use pattern, type of aquifer, and soil-drainage capacity, affect... the level of contamination. Exposure to high levels of nitrate in groundwater may contribute to adverse health effects among residents who use groundwater for consumption. This study aimed to determine the relationship between nitrate levels in groundwaterPublication Metadata only Heavy metal contamination of surface water and groundwater from the waste electrical and electronic equipment (weee) recycling area in buriram, thailand(2020-01-01) Nathida Kongsricharoen; Jayrisa Champa; Navaporn Kanjanasiranont; Tassanee Prueksasit; Faculty of Environment and Resource Studies, Mahidol University; Chulalongkorn Universityconcentration around the WEEE dumping site, while the groundwater was slightly contaminated with Mn (0.020 mg/L) in the domestic water supply. In addition, the contamination of Cu and Pb found in DY-SW1 could be from WEEE. Although, the concentration of all... heavy metals under investigation were within the permissible levels. However, continual monitoring of the contaminated surface water and groundwater is necessary to prevent the dissemination of heavy metals.Item Metadata only Assessing Groundwater Resources Vulnerability with the New DRASTIC-LP: A Case Study in Chiang Mai Province, Thailand(2024-02-01) Imsamranrat C.; Leelasantitham A.; Imsamranrat C.; Mahidol University, and agricultural activities. These activities, in turn, directly contribute to environmental pollution, particularly in terms of the risk of groundwater contamination in Chiang Mai Province. This study aims to predict the future vulnerabilities of groundwater...)-related land-use pattern (L) that represents contamination impacts was considered an additional new DRASTIC parameter. The study’s findings reveal the high reliability and maximum effectiveness of the new DRASTIC-LP model in assessing groundwaterPublication Metadata only Mechanisms of arsenic contamination associated with hydrochemical characteristics in coastal alluvial aquifers using multivariate statistical technique and hydrogeochemical modeling: a case study in Rayong province, eastern Thailand(2020-01-01) Satika Boonkaewwan; Prinpida Sonthiphand; Srilert Chotpantarat; Chulalongkorn University; Mahidol University© 2020, Springer Nature B.V. Abstract: The rapid development of Rayong Province has resulted in increased demands on groundwater usage. This has potentially induced the release of contaminants such as arsenic (As), among others (i.e., NO3−, PO43... and intensive pumping may enhance the reducing environment, facilitating the release of As(III) into the groundwater. The knowledge gained from this study helps to better understand the mechanisms of As contamination in coastal groundwater aquifers, whichPublication Metadata only Removal of perfluorooctanoic acid (PFOA) in groundwater by nanofiltration membrane(2016-12-01) Apisara Boonya-Atichart; Suwanna Kitpati Boontanon; Narin Boontanon; Mahidol University; Faculty of Environment and Resource Studies, Mahidol Universitycontaminate groundwater. Groundwater is considered as an important source of water; hence removal of PFOA contamination in groundwater is needed. This study aimed to examine the removal of PFOA in spiked deionized water and spiked groundwater samples... by nanofiltration (NF) membrane. PFOA removal efficiency was performed by using NF membrane and all samples were analysed by high-performance liquid chromatography coupled with tandem mass spectrometry (HPLC-MS/MS). For groundwater concentration, solid phaseItem Metadata only Integrating machine learning models with cross-validation and bootstrapping for evaluating groundwater quality in Kanchanaburi province, Thailand(2024-07-01) Thanh N.N.; Chotpantarat S.; Ngu N.H.; Thunyawatcharakul P.; Kaewdum N.; Thanh N.N.; Mahidol UniversityExploring the potential of new models for mapping groundwater quality presents a major challenge in water resource management, particularly in Kanchanaburi Province, Thailand, where groundwater faces contamination risks. This study aimed to explore... the applicability of random forest (RF) and artificial neural networks (ANN) models to predict groundwater quality. Particularly, these two models were integrated into cross-validation (CV) and bootstrapping (B) techniques to build predictive models, including RF-CVPublication Metadata only Dietary intake of total and inorganic arsenic by adults in arsenic-contaminated Dan Chang district, Thailand, using duplicate food approach(2011-02-01) Suthep Ruangwises; Nongluck Ruangwises; Piyawat Saipan; Chulalongkorn University; Mahidol University; Khon Kaen UniversityDan Chang district, approximately 100 km west of Bangkok, was a site of tin mines operated almost 40 years ago. Mining operations caused arsenic contamination in soil, surface water, and groundwater within the district. The specific aimPublication Metadata only 1,2-dichloroethane removal by Bruguiera gymnorrhiza (L.) Lamk and Pseudomonas putida BCC 23535(2016-10-01) Sawitree Saiyood; Duangrat Inthorn; Alisa Vangnai; Paitip Thiravetyan; King Mongkut s University of Technology Thonburi; Mahidol University; Chulalongkorn University. putida BCC 23535 could completely remove 1,2-DCA within 6 days, which was more effective than the individual plants alone. P. putida BCC 23535 can be applied in 1,2-DCA contaminated water in groundwater which B. gymnorrhiza (L.) Lamk can be used in above...© IWA Publishing 2016. The purpose of this work was to investigate the ability of Bruguiera gymnorrhiza (L.) Lamk and Pseudomonas putida BCC 23535 to remove 1,2-dichloroethane (1,2-DCA) in contaminated water under hydroponic conditions. BItem Metadata only Efficacy of a Fine Bubble Diffuser in Enhancing Attached Biofilm Hydrogenotrophic Denitrification Reactor Performance(2023-03-01) Kamei T.; Narushima H.; Kodera H.; Sando T.; Rujakom S.; Eamrat R.; Nakamura T.; Nishida K.; Mahidol Universityof the FB diffuser for optimizing nitrate-contaminated groundwater treatment technology by HD.... that produced ordinary bubbles (AS reactor) were operated in parallel at different hydraulic retention times (HRTs) in a synthetic groundwater treatment experiment. A reduction in H2 consumption of approximately 77% was achieved using the FB diffuser to reach aPublication Metadata only Wells sanitary inspection and water quality monitoring in Ban Nam Khem (Thailand) 30 months after 2004 Indian Ocean tsunami(2010-02-01) Mentore Vaccari; Carlo Collivignarelli; Prapin Tharnpoophasiam; Francesco Vitali; Università degli Studi di Brescia; Mahidol Universityor the quality of drawn groundwater. Data show that most critical chemical-physical parameters are turbidity, total organic carbon and iron, whereas conductivity has greatly decreased in comparison with the February 2005 monitoring campaign. Furthermore, a high... faecal contamination related to both constructive and operational deficiencies was detected in most monitored wells; therefore, measures aimed at improving habits in well operation and favouring water domestic treatment are necessary. © 2009 Springer