Environmental Geochemistry and Health最新文献

{"title":"A comprehensive investigation of the occurrence and speciation of arsenic in the water, sediments and aquatic products in Dongping Lake, an important drinking water source in East China.","authors":"Ju Zhang, Huanguang Deng, Zhibo Zhang, Huaizhen Zhang, Dongqi Wang, Qiaoyan Li, Hao Wang, Linsong Yu","doi":"10.1007/s10653-025-02452-6","DOIUrl":"10.1007/s10653-025-02452-6","url":null,"abstract":"<p><p>The total arsenic (TAs), inorganic arsenic (iAs) including arsenate (As(V)) and arsenite (As(III)) distribution in water, surface/core sediments and aquatic products in Dongping Lake was investigated. The pollution levels and associated risks were evaluated using the methods of geoaccumulation index, single factor index, health risk model and potential ecological risk index. The results showed that As(V) dominated across all environmental matrices. TAs concentrations in water (1.36-3.90 μg/L) were all below the threshold set by the World Health Organization (10 μg/L). The average concentrations of As(V) and As(III) in water were 0.82 <math><mo>±</mo></math> 0.48 μg/L and 0.28 <math><mo>±</mo></math> 0.31 μg/L, respectively, while those in surface sediments were 7.30 <math><mo>±</mo></math> 2.58 mg/kg and 1.16 <math><mo>±</mo></math> 0.38 mg/kg. Laohu Wharf, the Dawen River inlet and the northern outlet area were identified as hot spots for elevated arsenic levels in water and surface sediments. In core sediments, the maximums were detected at a depth of 1-2 cm or 2-3 cm. As(V) and As(III) in water were significantly correlated with dissolved organic carbon, Chla, dissolved inorganic nitrogen and pH. As(V) in sediments were closely associated with oxidation-reduction potential, organic carbon and total nitrogen. Shellfish had significantly higher TAs and iAs levels compared to fish and shrimp. Collectively, shellfish and fish had been polluted with iAs. The average carcinogenic risks caused by iAs through daily intake of shellfish (3.72 <math><mo>×</mo></math> 10^-4/a) exceeded the acceptable level (10^-4/a). The TAs pollution in sediments was at a slight to moderate contamination level and posed a considerable ecological risk.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 5","pages":"147"},"PeriodicalIF":3.2,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143742608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Bioaccessibility, human health risks, and source apportionment of heavy metals in street dust from coal mining-influenced environments.","authors":"Mala Kumari, Tanushree Bhattacharya, Sumedha Surbhi Singh, Arpita Roy, Abhishek Kumar","doi":"10.1007/s10653-025-02437-5","DOIUrl":"10.1007/s10653-025-02437-5","url":null,"abstract":"<p><p>Road dust samples were collected from 50 locations across four distinct categories (coal mine areas, thermal power plants, commercial zones, and residential neighbourhoods) in Singrauli, Madhya Pradesh, India. These samples were analyzed to evaluate heavy metal contamination, bioaccessibility, human health risks, and contamination sources. The region demonstrated metal(loid) contamination, with elevated concentrations of As (225.8 ± 26.2 mg/kg), Co (31.8 ± 12.7 mg/kg), Cr (206.2 ± 121.2 mg/kg), Cu (120.6 ± 86.4 mg/kg), Mo (9.6 ± 9.4 mg/kg), Ni (91.1 ± 59.1 mg/kg), V (130.1 ± 30.9 mg/kg), and Zn (277.5 ± 65.2 mg/kg) indicating potential environmental and health concerns. A physiologically based extraction test was utilized to assess the bioaccessibility of the metal(loid)s, simulating its potential uptake through the human digestive system. Results revealed high bioaccessibility for Zn, Mn, Co, and Cu in both gastric (< 10%) and intestinal phases (> 10%), highlighting the likelihood of human exposure through ingestion. Health risk assessment, incorporating both non-carcinogenic and carcinogenic risk evaluations, identified Mn, Cr, Fe, and As as posing non-carcinogenic risks, with hazard index values exceeding 1 for both children and adults. Additionally, As, Cr, and Ni were found to present carcinogenic risks, with risk values surpassing the accepted threshold of 10^-4, highlighting serious long-term health implications. To identify contamination sources, Positive Matrix Factorization, a statistical model, was employed, which revealed that Factor 4 predominantly contributed to metal(loid) contamination, with Zn and Cu primarily originating from industrial activities such as coal mining, steel production, metal smelting, and transport-related emissions. The results of this study highlight the global relevance of integrating bioaccessibility testing, detailed health risk assessments, and source apportionment modelling to address heavy metal contamination in mining and industrial regions.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 5","pages":"146"},"PeriodicalIF":3.2,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143742611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Quality assessment of growing media based on bottom sediment in agriculture: the content of elements and radionuclides.","authors":"Agnieszka Baran, Axelle Mugisha, Eva Doleželová, Katarzyna Szarłowicz, Pavel Ryant, Gavin Birch","doi":"10.1007/s10653-025-02471-3","DOIUrl":"10.1007/s10653-025-02471-3","url":null,"abstract":"<p><p>The aim of the studies was to evaluate the content of macroelements, trace elements, and radionuclides in mixtures of bottom sediments (BS) with dolomite (D), sewage sludge (SS), and biochar (BC). The bottom sediment was mixed with side products in the ratio of 80% bottom sediment and 20% dolomite, sewage sludge and biochar respectively. After the experiment, chemical analyses were conducted on the growing medium and plant material. The properties of the mixtures showed a high content of TOC and an alkaline and slightly acidic reaction. The highest content of macronutrients was found in the mixtures of bottom sediments and dolomite (Ca, Mg) and in the mixtures of bottom sediments and sewage sludge (S, P). The use of mixtures reduced the content of toxic elements, such as Cd and Pb in the biomass. In the mixed samples, it was also found that the content of natural radionuclides decreased in most of the samples analysed. An exception was the BS+BC mixture, since in this system an increase in ¹³⁷Cs and ²¹⁰Pb was observed. The heavy metal content in the mixtures was below toxic limits and the addition of sewage sludge, dolomite, and biochar to the sediment did not increase its radioactivity to dangerous levels. The bottom sediment-based mixture suitable for use in agriculture and would not pose an environmental risk. However, the analysed mixtures based on bottom sediments and waste cannot replace fertilisers due to low total content of nutrients.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 5","pages":"144"},"PeriodicalIF":3.2,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143742665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Ameliorating arsenic toxicity in young goats: assessing vitamin E and Saccharomyces cerevisiae on feed intake, carcass quality, mineral profiles in tissues and impending health risks to humans.","authors":"Debasish Satapathy, Tapas Kumar Dutta, Anupam Chatterjee, Sushil Kumar Yadav, Sneha Dutta, Asif Mohammad, Arun Kumar Das","doi":"10.1007/s10653-025-02439-3","DOIUrl":"10.1007/s10653-025-02439-3","url":null,"abstract":"<p><p>This study aimed to assess the efficacy of vitamin E, yeast culture (Saccharomyces cerevisiae), and a combined supplement of both in alleviating the impacts of arsenic exposure on young goats. Alongside, we investigated feed consumption, carcass traits, arsenic levels in blood and organs, mineral distribution in different tissues, and potential human health risks from consuming meat from arsenic-exposed goats. Thirty healthy male Black Bengal goat weaned kids, averaging 6.15 ± 0.32 kg and 142.87 ± 9.28 days old, were involved in the trial. They were divided into five equal treatment groups. The diet consisted of chopped sorghum sudan grass as roughage and a concentrate mixture for growth and maintenance of young goats. Arsenic was administered through the concentrate as sodium arsenite, with T₀ as the control (no arsenic). To prevent stress-related issues, kids under T₁-T₄ groups received gradually increasing arsenic doses over a three-week adaptation period, followed by a consistent 50 ppm dose for 17 weeks. Vitamin E and yeast culture were introduced concurrently with arsenic exposure, with DL-α-Tocopherol added to the concentrate at 250 IU/kg of feed dry matter for T₂ and T₄, and T₃ and T₄ received 4 × 10⁹ colony forming units of yeast culture (Saccharomyces cerevisiae) daily. High arsenic levels led to reduced feed dry matter intake (g/kg body weight) (p = 0.01) and crude protein consumption (g/kg body weight) (p < 0.001) in arsenic-challenged goats. However, supplementation with vitamin E, yeast culture, or both mitigated these effects and decreased blood arsenic levels (p < 0.001). Interestingly, neither arsenic exposure nor the mitigation strategies significantly impacted the levels of Ca, P, Mg, Cu, Mn, Zn and Fe in various organs and carcass components except for liver copper levels, which showed a negative correlation (p < 0.008) with arsenic concentration. Organs such as the liver, kidneys and testes accumulated higher (p < 0.001) arsenic levels compared to other body parts. Vitamin E, alone or with yeast culture, significantly reduced (p < 0.001) arsenic deposition in carcass components, while yeast culture alone showed no additional benefit. Despite supplementation, arsenic levels in meat and carcass parts from exposed goats (T₁, T₂, T₃ and T₄) remained higher (p < 0.001) than in the control group, posing a cancer risk exceeding acceptable thresholds value (1 × 10^-6). Vitamin E supplementation, alone or combined with S. cerevisiae, partially mitigated arsenic deposition in various organs and body parts, offering a promising solution to the issue.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 5","pages":"141"},"PeriodicalIF":3.2,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Heavy metal pollution and probabilistic risk assessment in soil of desert road shelterbelts in typical oasis cities in Northwest China.","authors":"Yifan He, Qi Liu, Shengli Wang, Chongbin Li, Tiantian Liang, Ximei Cai","doi":"10.1007/s10653-025-02459-z","DOIUrl":"10.1007/s10653-025-02459-z","url":null,"abstract":"<p><p>The topic of this paper is the heavy metal pollution in desert road soil and the probability risk assessment of heavy metal pollution. The research topic adopts a quantitative analysis method to quantify the impact of soil heavy metal concentration and the contribution of soil heavy metal impact to human health risks. During the research process, surface soil collection was completed, with samples from two desert road protection forest belts in oasis cities. The assessment methods for heavy metal pollution levels include heavy metal migration factor, Nemero comprehensive pollution index, pollution index, and geochemical baseline value. The results confirm that there is a moderate risk of heavy metal pollution in the sample, but there is no overly obvious ecological risk. Zhongwei City has relatively severe Pb pollution, while Wuwei City has severe Cd pollution. Subsequently, based on Species Sensitivity Distribution as the basic support, the derivation and calculation of Predicted No Effect Concentration were completed, and the ecological risk was evaluated. The health risk assessment tools for different populations include health risk assessment models and Monte Carlo models. From the evaluation conclusion, the non-carcinogenic risk of Pb (adult: 99.98%; child: 99.98%) and As (adult: 54.28%; child: 98.11%) in the protective forest of Wuwei Desert is low, and the probability of carcinogenic risk is high. The results in Zhongwei are similar to those in Wuwei, both of which have a more serious health probability risk. From the derivation and calculation results, it can be seen that GB 36600-2018 (Soil Environmental Quality Standards) cannot protect species diversity well. The research conclusion can promote the analysis and control of environmental risks on desert highways from both theoretical and practical perspectives.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 5","pages":"142"},"PeriodicalIF":3.2,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Application of unsegregated municipal solid waste char produced at low temperature and vermicompost for remediation of coal mine tailing soil.","authors":"Silvia Saikia, Sajan Kumar Dansena, Ajay S Kalamdhad","doi":"10.1007/s10653-025-02436-6","DOIUrl":"10.1007/s10653-025-02436-6","url":null,"abstract":"<p><p>The melioration of mine tailing soil (MTS) with unsegregated municipal solid waste (MSW) char and vermicompost (VC) significantly improved soil properties. The novelty of this research lies in utilizing MSW char derived directly from landfill waste, combined with VC, to enhance soil properties while mitigating heavy metal toxicity. Results indicate that 10% MSW char increased soil pH by 45.44% and specific gravity by 4%, while a 5% char and 30% VC mix improved volatile solids, electrical conductivity, water holding capacity, and total Kjeldahl nitrogen by 2.45, 1.76, 2.96, and 2.79 fold, respectively, with a 3.3% reduction in bulk density. Heavy metal immobilization was significant, with total Fe, Ni, and Pb reducing by 28%, 22%, and 9%, respectively. Bioavailable Fe decreased by 89% with 20% char, while Ni and Pb bioavailability dropped to undetectable levels. Metal leachability was minimized, reducing Ni and Pb by 30% and 61%, respectively. These findings highlight the effectiveness of MSW char and VC in improving MTS properties, enhancing nutrient retention, and mitigating heavy metal risks, offering a sustainable approach for mine land restoration.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 5","pages":"143"},"PeriodicalIF":3.2,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Positive effects of composite material immobilized enzymes in 2,4,6-trichlorophenol degradation on soil properties and plant growth.","authors":"Dawen Gao, Huayu Tao, Zelin Hou, Guanyu Chen, Jing Wu, Hong Liang","doi":"10.1007/s10653-025-02479-9","DOIUrl":"10.1007/s10653-025-02479-9","url":null,"abstract":"<p><p>2,4,6-Trichlorophenol (2,4,6-TCP) is recognized as a bio-toxic compound which is widely present in water and soil, and immobilized enzymes technology is widely used to degrade 2,4,6-TCP efficiently. However, previous studies have primarily focused on the degradation capability of immobilized enzymes towards 2,4,6-TCP, while the impacts on soil after degradation remain largely unexplored. In this study, sodium alginate/hydroxyapatite/chitosan microspheres immobilized with enzymes were used for 2,4,6-TCP degradation, and the impacts of degradation on soil properties and plant growth were explored. The results indicated that sodium alginate/hydroxyapatite/chitosan microsphere-immobilized enzymes achieved a removal rate of 94.72% for 160 mg L^-1 2,4,6-TCP over 24 h and 73.17% for 160 mg kg^-1 2,4,6-TCP contaminated soil over 72 h. Soil dehydrogenase and catalase activities were enhanced during degradation. The inhibitory effects of 2,4,6-TCP on wheat root and leaf elongation were mitigated by immobilized enzymes that degrade 2,4,6-TCP. Nutrients, such as fast-acting phosphorus and fast-acting potassium, were increased by immobilized enzymes that release nutrient elements. The changes of wheat growth observed in the soil after 2,4,6-TCP degradation by immobilized enzymes were driven by nutrients and degradation. These insights may facilitate the advancement of future applications of immobilized enzyme degradation technologies, contributing to sustainable soil management and ecological restoration.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 5","pages":"139"},"PeriodicalIF":3.2,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143718205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Traditional and low-cost technical approaches for investigating greenhouse gases and particulate matter distribution along an urban-to-rural transect (Greve River Basin, Central Italy).","authors":"M Ferrari, R Biagi, S Venturi, F Frezzi, F Tassi","doi":"10.1007/s10653-025-02456-2","DOIUrl":"10.1007/s10653-025-02456-2","url":null,"abstract":"<p><p>Human activities, largely tied to fossil fuels and intensive agriculture, emit massive amounts of climate-altering species and harmful pollutants into the atmosphere that affect soil, ecosystems, and water. Air quality monitoring is crucial to minimize harmful effects and protect human and environmental health. The Greve River basin (Tuscany, central Italy) represents an excellent example of an ecosystem affected by various anthropogenic air contaminants. The upstream areas are predominantly rural, while the downstream zones are characterized by urban and industrial development. Air pollutants throughout the basin were measured adopting two strategies: (i) fixed monitoring at five sites using multiparametric stations equipped with low-cost sensors for CO₂, CH₄, and PM_2.5 concentrations; (ii) measurements along a transect using a mobile monitoring station equipped with a Picarro G2201-i analyzer for the determination of CO₂ and CH₄ concentrations and ¹³C/¹²C values of the two gases. Results revealed relatively high CO₂ and CH₄ concentrations downstream, mainly due to vehicular traffic based on the isotopic signature. The temporal and spatial distribution of the contaminants mirrored the evolution of the Planetary Boundary Layer, with peak concentrations in the early morning due to stable atmospheric conditions, and contaminant dilution due to air turbulence during the daytime. Particulate (PM_2.5) distribution showed a trend similar to gaseous pollutants, being strongly dependent on wind speed and rainfall events. The high spatiotemporal resolution of data acquisition provided by the low-cost stations for air quality measurements represents an important advance for developing monitoring strategies, complementing the traditional instrumentation commonly used by agencies.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 5","pages":"138"},"PeriodicalIF":3.2,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11946975/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143718210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Bioremediation of chromium (VI) from mining-contaminated soil using Klebsiella sp. (BH-A1): environmental implications.","authors":"Anjali Srivastava, Asha Lata Singh, Aniruddha Kumar, Alok Kumar","doi":"10.1007/s10653-025-02448-2","DOIUrl":"10.1007/s10653-025-02448-2","url":null,"abstract":"<p><p>The present investigation aimed to isolate and identify a novel bacterium from chromium (VI)-contaminated soil samples collected from the Gorbi mine area, Singrauli coalfield, evaluates its potential for Cr(VI) reduction to Cr(III) and enhances environmental and operational conditions to apply this in bioremediation of Cr-contaminated soils. A bacterium was newly isolated from contaminated soils of coal mines for chromium (VI) reduction and identified as Klebsiella sp. (BH-A1) using 16S rRNA gene sequencing. Calcium chloride and sodium alginate solutions were used to immobilize the bacterial cells of isolated Klebsiella sp. Bacteria beads (Klebsiella sp. BH-A1) were tailored to reduce 10 µg/g Cr(VI)-contaminated soil under varied environmental factors such as bead biomass (200-1000 mg), pH (5-8), temperature (25-35 °C), and nutrient sources. Beads of Klebsiella sp. (BH-A1) (1000 mg/g) were efficient for 87% reduction of 10 µg/g Cr(VI) present in the soil at pH 7, 30 °C, within a six-hour contact period. Fourier transform infrared spectroscopy analyses reveal varied functional groups like -OH, -NH, and -COOH in Cr-treated bacterial beads. Functional groups corroborate their involvement in Cr(VI) and Cr(III) absorption on the cell surface of bacteria. Chromium-treated Klebsiella sp. (BH-A1) cell size was wider due to chromium absorption than the non-treated bacterial cells after SEM analyses. The energy dispersive X-ray plot has proven the 0.41 weight percent chromium accumulation inside the bacterial cells. Moreover, XPS analyses of Cr-treated bacterial cells indicate reduced Cr(VI) into Cr(III). The finding further suggests that Klebsiella sp. (BH-A1) might be a new prospect for potential application in Cr detoxification from Cr-contaminated soil. The limitations of this research include the accumulation of hazardous metabolic products due to low diffusion rates, the formation of thick biofilms blocking bead pores, and interrupted substrate transport from the bulk liquid to immobilized cells.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 5","pages":"140"},"PeriodicalIF":3.2,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143729491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}

{"title":"Multivariable integrated risk and spatiotemporal characteristics assessment for water quality using comprehensive risk index in Jiangsu section of the south-to-north water diversion project, China.","authors":"Yue Zhang, Jun Hou, Rui Zhou, Jun Lu, Jun Xia, Jun Wu, Guoxiang You, Zijun Yang, Lingzhan Miao","doi":"10.1007/s10653-025-02458-0","DOIUrl":"10.1007/s10653-025-02458-0","url":null,"abstract":"<p><p>Water quality serves as a key indicator for assessing the effectiveness and success of water diversion efforts, yet comprehensive assessments of water pollution risk across interbasin areas remain scarce. Therefore, considering water quality standards, water eutrophication, and drinking water safety, a comprehensive water quality risk inedx (CRI) was developed by integrating the Comprehensive Pollution Index (CPI), Eutrophication Index (TLI), and New Water Quality Index (NWQI). This framework was designed to determine the spatiotemporal risk levels at a spatial scale that crosses large river basins. The Jiangsu section, pivotal water supply source for the eastern route of the South-to-North Water Diversion Project (SNWDP-ER), was selected as the study area. In addition, based on the long-term (2003-2022) water quality monitoring data, multiple statistical methods were used to evaluate the effects of the SNWDP-ER on water quality within the lakes and main reaches of the Jiangsu Section. Variance analysis revealed significant differences in water quality pre- and post-water transfer and the operation of SNWDP-ER has contributed to the improvement of overall water quality. Principal Component Analysis (PCA) identified the predominant parameters affecting water quality was converted from COD_Mn to NH₃-N and TP after water transfer and the main objective of water quality control in the study area is agricultural non-point source pollution. The comprehensive water quality risk assessment identified three groups with distinct risk levels and the impact of water transfer project on the water quality risk of reaches was gradually increasing from upstream to downstream. This study greatly enhanced our understanding of the impacts of large-scale water transfer projects on water quality and proposed a comprehensive framework for assessing spatiotemporal risk levels across extensive river basins.</p>","PeriodicalId":11759,"journal":{"name":"Environmental Geochemistry and Health","volume":"47 5","pages":"135"},"PeriodicalIF":3.2,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143729494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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}