HydroResearch最新文献

{"title":"Hydrochemistry and assessment of heavy metals groundwater contamination in an industrialized city of sub-Saharan Africa (Douala, Cameroon). Implication on human health","authors":"S. Ngo Boum-Nkot ,&nbsp;B. Nlend ,&nbsp;D. Komba ,&nbsp;G.R. Nkoue Ndondo ,&nbsp;M. Bello ,&nbsp;E.J. Fongoh ,&nbsp;M.-J. Ntamak-Nida ,&nbsp;J. Etame","doi":"10.1016/j.hydres.2023.01.003","DOIUrl":"https://doi.org/10.1016/j.hydres.2023.01.003","url":null,"abstract":"<div><p>Douala is one of the largest cities in sub-Saharan Africa where 80% of the population relies on groundwater without any control of their quality. In this context, this study evaluates the groundwater quality and the implications for human health. Water samples, including hand dugs wells, spring waters and borehole were collected. pH values are out of the WHO limit, with too much acidity for human consumption. Three water types are identified: Na–Cl (76.2%), Ca–Cl (14.3%) and Ca-Mg-Cl (9.5%) indicating significant anthropogenic fingerprint. Water Quality Index shows that 90.5% of the samples have “poor” to “unsuitable” quality for drinking purposes. Heavy metal Pollution Index and Heavy Metal Evaluation Index highlight that the groundwater are “lightly” to “moderately” polluted. Human Health Risk tool shows that heavy metal poses a non-carcinogenic risk by ingestion of water for child. These results highlight the necessity of groundwater monitoring to ensure a sustainable water supply.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"6 ","pages":"Pages 52-64"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49878900","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Climate change impact on water availability in the Himalaya: Insights from Sunkoshi River basin, Nepal","authors":"Raghu Nath Prajapati ,&nbsp;Nurazim Ibrahim ,&nbsp;Bhesh Raj Thapa","doi":"10.1016/j.hydres.2023.10.002","DOIUrl":"https://doi.org/10.1016/j.hydres.2023.10.002","url":null,"abstract":"<div><p>Changing streamflow is one of the most visible consequences of climate change. In this study, the Soil and Water Assessment Tool (SWAT) model was used to investigate the significant effects of climate change on streamflow in a Himalayan River. We incorporated information from several Global Climate Models (GCM), considering two climate scenarios: SSP 2.45 and SSP 5.85, which are part of Shared Socioeconomic Pathways (SSPs) for the future periods of 2022–2030 and 2031–2050. Substantial patterns in temperature and rainfall changes were identified using ensemble modeling. Under both SSPs 2.45 and 5.85, the results indicated a rising trend in temperatures from January to June, a decline from June to September, and a marginal increase from October to December. Additionally, annual rainfall, real evapotranspiration, and river flow are anticipated to rise by 17.67–21.79%, up to 0.93%, and 23–53%, respectively in the upper region of the study basin. Conversely, across the two future periods and scenarios, the lower region is depicted to have a decline in rainfall of 20.84–36.34%, evapotranspiration of up to 4.35%, and river flow of 38–65%. These findings will be invaluable for the design and construction of climate-resilient water resources related projects in the Himalayan regions, such as Nepal.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"6 ","pages":"Pages 279-292"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49878874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigating groundwater potential in northeastern basement complexes: A Pulka case study using geospatial and geo-electrical techniques","authors":"Rowland Adewumi ,&nbsp;Okechukwu Agbasi ,&nbsp;Azeez Mayowa","doi":"10.1016/j.hydres.2023.02.003","DOIUrl":"https://doi.org/10.1016/j.hydres.2023.02.003","url":null,"abstract":"<div><p>Groundwater is a crucial resource for communities and plays a significant role in the economy, especially in regions where surface water sources are limited or unreliable. Nigerian Northeastern basement complexes are unique geologic formations with specific hydrological characteristics that impact groundwater availability and quality. However, there is a lack of comprehensive information on groundwater potential in these areas, hindering effective resource management. To address this gap, this study focuses on the application of geospatial and electrical techniques to map and assess groundwater potential in Pulka, a northeastern basement complex in Nigeria. This research used geospatial methodology to delineate groundwater-prospective areas in Pulka, Northern Nigeria, with the aid of a VES technique that was integrated with the Schlumberger electrode configuration, the Shuttle Radar Topography Mission (SRTM), which were used as input datasets. Lineament and drainage density, lithology and slope, land use and land cover, and thematic maps were created as GIS input rasters. The value estimates were allotted based on a pair-wise examination of elements that appeared to be important in groundwater accumulation, retention, and transportation. The Analytical Hierarchy Process (AHP) was used in GIS software to incorporate five maps of components impacting the suitability of groundwater and movement using weighted layering. The hydraulic conductivity and longitudinal conductance of Pulka are greatest towards the west, with maximum values of 0.0665 m/day and 1.75 S, respectively. Transverse resistance and transmissivity are greatest in the eastern section of Pulka, with maximum values of 48.29 m2/day and 9000 m, respectively. Based on our research using SRTM, the most important elements for groundwater potential were soil type, which represented 43%; lineament density, which represented 33%; slope, with 13%; drainage density, with 7%; and land use and land cover, which accounted for the least (around 4% of overall contributions). Pulka has enormous groundwater development potential for sustainable and profitable extractions, according to analysis based on geospatial and geo-electrical techniques.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"6 ","pages":"Pages 73-88"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49878903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Wetlands ecological security assessment in lower reaches of Taoerhe river connected with Nenjiang river using modified PSR model","authors":"Yanhong Zhang ,&nbsp;Peng Zang ,&nbsp;Huali Guo ,&nbsp;Guodong Yang","doi":"10.1016/j.hydres.2022.12.003","DOIUrl":"https://doi.org/10.1016/j.hydres.2022.12.003","url":null,"abstract":"<div><p>Over the past two decades, with the implementation of a series of ecological restoration projects and the comprehensive improvement projects of agriculture, most of the ecological environments in Western area of Northeast region have been significantly improved. Therefore nearly all the wetlands have been significantly improved from the perspective of landscape and vegetation cover. In particular, China has just promulgated a Wetland protection law to further promote the concept of wetland protection into society. How safe the wetlands will be after the changes is a priority. The objective of this paper is to construct an improved comprehensive evaluation model to evaluate the wetland safety situation based on several types of data. In this paper, a typical wetland area situated in the Momoge National Protected Area is selected, based on pressure-state-response (PSR) model and the mathematical method of catastrophe progression theory, geographical information system (GIS) approach is involved to improve the model parameters, the ecological security situation within the study area is evaluated from 2000 to 2020. The results show: (i) the ecological security in study area varied nonlinearly, and has been turning worse from 2000 to 2009, while during 2009 to 2020 has been turning better; (ii) the ecological security levels in Momoge wetlands region were in moderate and primary warning during the past two decades, with higher value of ecological security comprehensive index in the middle region and lower value in the east and west region in the area; (iii) the area with lower value of eco-security index is corresponded with the distribution of settlements and river valleys where the the intensity of Land-Use and Land-Cover Change (LUCC) is much wider and deeper than the other area. From above, it is clearly that even within national protected areas, wetlands are mostly at a moderate ecological level and unevenly distributed in study area. Influenced by human factors, wetlands are at a lower security level. From that, wetlands protection only is in the initial stage, and wetlands protection and restoration still has a long way to go.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"6 ","pages":"Pages 156-165"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49878907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Groundwater quality evaluation and pollution source apportionment using multivariate statistical analyses in Chuadanga municipality, Bangladesh","authors":"Md. Alinur Rahman,&nbsp;Umme Habiba","doi":"10.1016/j.hydres.2023.05.001","DOIUrl":"https://doi.org/10.1016/j.hydres.2023.05.001","url":null,"abstract":"<div><p>This is the first study to report the groundwater (GW) quality indices for drinking and irrigation purposes in Chuadanga Municipality, Bangladesh. GW samples were collected from 32 locations across the municipality's nine administrative wards. The physical parameters, such as total dissolved solids (TDS): 383 ppm, pH: 7.4, and electrical conductivity (EC): 583 μs/cm were reported, respectively. Among the detected chemical components, arsenic (As): 0.16 mg/L, iron (Fe): 0.77 mg/L, and manganese (Mn): 0.75 mg/L were found beyond the standard values. Geospatial analysis and multivariate analyses, such as correlation coefficient analysis (CCA), cluster analysis (CA), and principal component analysis (PCA), were performed to determine the potential sources of contaminants in the GW of the selected study areas. The water quality index (WQI) and heavy metal pollution index (HPI) suggest that most samples are unsuitable for drinking and irrigation. Following the water quality indices, CCA indicates the significant impact of As and Mn on water quality. The CA and PCA suggest geogenic, anthropogenic, and natural processes are mainly responsible for releasing those contaminants in GW.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"6 ","pages":"Pages 166-176"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49878904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Erratum regarding missing Declaration of Competing Interest statements in previously published articles","authors":"","doi":"10.1016/j.hydres.2023.03.004","DOIUrl":"https://doi.org/10.1016/j.hydres.2023.03.004","url":null,"abstract":"","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"6 ","pages":"Page 294"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589757823000124/pdfft?md5=bf19e50c47faa747ba50eb957b269e33&pid=1-s2.0-S2589757823000124-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136697006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Naturally occurring emerging contaminants: Where to hide?","authors":"Hossein Miraji ,&nbsp;Mureithi Eunice ,&nbsp;Asha Ripanda ,&nbsp;Faustin Ngassapa ,&nbsp;Othman Chande","doi":"10.1016/j.hydres.2023.05.002","DOIUrl":"https://doi.org/10.1016/j.hydres.2023.05.002","url":null,"abstract":"<div><p>Water disinfection by-products (DBPs) are among insitu-generated emerging contaminants (ECs) during water disinfection. Although water disinfectants control acute risks through destruction of water-borne pathogens, the produced DBPs are associated to genotoxicity, carcinogenicity, bladder cancer, early-term miscarriage, and birth defects. Only 30% of trihalomethanes (THMs), 10% of halogenic acetic acids (HAAs) and <em>N</em>-nitrosodimethylamine (NDMA) are the major classes of DBPs gained significant public attention. There is still missing information particularly in their formation, distribution, and public awareness. In the current study it was revealed that persistence, types, and metabolic fragments of DBPs are not informed leaving unsolved puzzle. These findings still indicate a significant knowledge gap on the insight and alternative solutions on where to hide against natural-bases ECs.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"6 ","pages":"Pages 203-215"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49878870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A combined GIS, remote sensing and MCDM approach to find potential location for rainwater harvesting structure in northwestern part of Bangladesh","authors":"M.M. Shah Porun Rana,&nbsp;Md. Moniruzzaman","doi":"10.1016/j.hydres.2023.08.001","DOIUrl":"https://doi.org/10.1016/j.hydres.2023.08.001","url":null,"abstract":"<div><p>There has been a fresh water shortage in the Northwestern portion of Bangladesh. Rainwater is one of the finest boons of the nature which can reduce this problem. To utilize the rainwater properly, it is highly needed to make rainwater harvesting (RWH) structure in these regions. The major goal of this study is to find optimal sites for RWH structures to fulfill meet the needs of fresh water demand in Northwestern region of Bangladesh, by employing a multiple-criteria decision making technique based on geographic information systems. Seven spatial parameters, including, rainfall, land use &amp; land cover, slope, soil texture, road distance, drainage density, physiography were included in this study's site appropriateness analysis for RWH structures. The ultimate suitable map which is acceptable for installing RWH structure had been broken down into four categories such as excellent, good, medium and poor regions. The categories occupy the study area's territory in the following order: 21.94%, 59.57%, 15.93%, 2.16%. The study's excellent appropriateness rating for developing RWH structures includes the districts of Sirajganj, Gaibandha, Kurigram, Rangpur, Thakurgaon, Dinajpur, Panchagar, and Nilphamari, while its low appropriateness index includes Pabna, Natore, Rajshahi, Nawabganj, Naogaon, Joypurhat, and Bogra. Last but not least, this research might also help policymakers, government officer to develop RWH structure in a suitable place to reduce the freshwater shortage problem.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"6 ","pages":"Pages 235-246"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49878867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rainfall and temperature dynamics in four Indian states: A comprehensive spatial and temporal trend analysis","authors":"Subrat Nath ,&nbsp;Aneesh Mathew ,&nbsp;Sumit Khandelwal ,&nbsp;Padala Raja Shekar","doi":"10.1016/j.hydres.2023.09.001","DOIUrl":"https://doi.org/10.1016/j.hydres.2023.09.001","url":null,"abstract":"<div><p>Climate change poses a significant global challenge, impacting rainfall and temperature patterns worldwide. To assess regional and temporal changes, we conducted a trend analysis on mean monsoon rainfall and mean summer temperature in four Indian states with diverse climates: Karnataka, Gujarat, Rajasthan, and Maharashtra. The selection of these states as study areas was based on the monsoon's arrival time from the Arabian Sea. Using nonparametric statistical trend analysis techniques such as the Mann-Kendall test, Sen's slope estimator, Kendall tau and Mann-Whitney-Pettitt (MWP). we examined trends from 1951 to 2000 at a significance level of 5%. Additionally, we employed linear regression to identify climatic patterns. Our findings revealed both positive and negative trends in mean monsoon rainfall and mean summer temperature across all four states. Rainfall trends exhibited a decreasing pattern in all states, except for Maharashtra, which displayed a slightly negative trend despite an overall positive annual temperature trend. Conversely, temperature trends showed an increasing pattern in all states except Maharashtra. To further explore the relationship between summer temperature and monsoon precipitation, we investigated several urban centers within these four states. The results indicated varying trends, including increasing, decreasing, and no discernible trend across different stations. Our analysis demonstrated a general decline in yearly monsoon precipitation across most regions in the four states, coupled with recorded temperature changes. Notably, Karnataka exhibited a stronger positive correlation between rainfall and temperature trends. Maharashtra and Gujarat also exhibited a positive correlation, albeit at a moderate level. Conversely, Rajasthan displayed a very weak correlation (tau = 0.079), indicating no significant relationship between these two climatic parameters.</p></div>","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"6 ","pages":"Pages 247-254"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49878869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Erratum regarding missing Declaration of Competing Interest statements in previously published articles","authors":"","doi":"10.1016/j.hydres.2023.03.005","DOIUrl":"https://doi.org/10.1016/j.hydres.2023.03.005","url":null,"abstract":"","PeriodicalId":100615,"journal":{"name":"HydroResearch","volume":"6 ","pages":"Page 295"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589757823000136/pdfft?md5=1a3271373f0a3c1845a61f50309ef2f4&pid=1-s2.0-S2589757823000136-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136697007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}