Feng Jiang , Qixin Wu , Qiang Li , Kebuzi Jiqin , Jie Zeng , Shilin Gao , Shiyou Yi , Shuang Liu , Feng Liang
{"title":"岩溶地下水污染综合定量追踪——以贵州省遵义垃圾填埋场为例","authors":"Feng Jiang , Qixin Wu , Qiang Li , Kebuzi Jiqin , Jie Zeng , Shilin Gao , Shiyou Yi , Shuang Liu , Feng Liang","doi":"10.1016/j.envpol.2025.125731","DOIUrl":null,"url":null,"abstract":"<div><div>Sudden groundwater pollution in karst areas poses a serious threat to drinking water safety. Tracing contamination sources is crucial for managing and remediating groundwater pollution. Traditional tracing methods often lack accuracy, so this study combined multiple techniques to trace and quantify pollution sources near the municipal solid waste (MSW) landfill in Zunyi City, Guizhou Province, China. Analysis revealed that 83.2% of samples exceeded Chinese standards for ammonium, 81.5% for COD<sub>Mn</sub>, and 47.9% for chloride, indicating severe pollution. To address these alarming findings, we implemented a comprehensive approach to identify and quantify the sources of contamination more accurately. First, major element geochemical tracing identified primary contamination sources. Second, trace element analysis provided more precise identification and highlighted additional sources. Third, isotopic tracing (δ<sup>15</sup>N-NO<sub>3</sub><sup>−</sup>, δ<sup>18</sup>O-NO<sub>3</sub><sup>−</sup>) determined types and quantities of pollution sources. Finally, long-term water quality monitoring and the PMF model enabled quantitative source apportionment of pollutants. This integrated approach found that the primary pollutants were landfill leachate (64.6%), domestic sewage (19.0%), and solute filtration from water-soil-rock interactions (16.4%). Our findings demonstrate that combining these methods enhances source resolution accuracy in aquatic environments and has the potential to be utilized in other karst regions worldwide.</div></div>","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"368 ","pages":"Article 125731"},"PeriodicalIF":7.3000,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Integrated quantitative tracing for Karst groundwater contamination: A case study of landfill in Zunyi, Guizhou Province, China\",\"authors\":\"Feng Jiang , Qixin Wu , Qiang Li , Kebuzi Jiqin , Jie Zeng , Shilin Gao , Shiyou Yi , Shuang Liu , Feng Liang\",\"doi\":\"10.1016/j.envpol.2025.125731\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Sudden groundwater pollution in karst areas poses a serious threat to drinking water safety. Tracing contamination sources is crucial for managing and remediating groundwater pollution. Traditional tracing methods often lack accuracy, so this study combined multiple techniques to trace and quantify pollution sources near the municipal solid waste (MSW) landfill in Zunyi City, Guizhou Province, China. Analysis revealed that 83.2% of samples exceeded Chinese standards for ammonium, 81.5% for COD<sub>Mn</sub>, and 47.9% for chloride, indicating severe pollution. To address these alarming findings, we implemented a comprehensive approach to identify and quantify the sources of contamination more accurately. First, major element geochemical tracing identified primary contamination sources. Second, trace element analysis provided more precise identification and highlighted additional sources. Third, isotopic tracing (δ<sup>15</sup>N-NO<sub>3</sub><sup>−</sup>, δ<sup>18</sup>O-NO<sub>3</sub><sup>−</sup>) determined types and quantities of pollution sources. Finally, long-term water quality monitoring and the PMF model enabled quantitative source apportionment of pollutants. This integrated approach found that the primary pollutants were landfill leachate (64.6%), domestic sewage (19.0%), and solute filtration from water-soil-rock interactions (16.4%). Our findings demonstrate that combining these methods enhances source resolution accuracy in aquatic environments and has the potential to be utilized in other karst regions worldwide.</div></div>\",\"PeriodicalId\":311,\"journal\":{\"name\":\"Environmental Pollution\",\"volume\":\"368 \",\"pages\":\"Article 125731\"},\"PeriodicalIF\":7.3000,\"publicationDate\":\"2025-01-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Environmental Pollution\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0269749125001046\",\"RegionNum\":2,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENVIRONMENTAL SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Pollution","FirstCategoryId":"93","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0269749125001046","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
Integrated quantitative tracing for Karst groundwater contamination: A case study of landfill in Zunyi, Guizhou Province, China
Sudden groundwater pollution in karst areas poses a serious threat to drinking water safety. Tracing contamination sources is crucial for managing and remediating groundwater pollution. Traditional tracing methods often lack accuracy, so this study combined multiple techniques to trace and quantify pollution sources near the municipal solid waste (MSW) landfill in Zunyi City, Guizhou Province, China. Analysis revealed that 83.2% of samples exceeded Chinese standards for ammonium, 81.5% for CODMn, and 47.9% for chloride, indicating severe pollution. To address these alarming findings, we implemented a comprehensive approach to identify and quantify the sources of contamination more accurately. First, major element geochemical tracing identified primary contamination sources. Second, trace element analysis provided more precise identification and highlighted additional sources. Third, isotopic tracing (δ15N-NO3−, δ18O-NO3−) determined types and quantities of pollution sources. Finally, long-term water quality monitoring and the PMF model enabled quantitative source apportionment of pollutants. This integrated approach found that the primary pollutants were landfill leachate (64.6%), domestic sewage (19.0%), and solute filtration from water-soil-rock interactions (16.4%). Our findings demonstrate that combining these methods enhances source resolution accuracy in aquatic environments and has the potential to be utilized in other karst regions worldwide.
期刊介绍:
Environmental Pollution is an international peer-reviewed journal that publishes high-quality research papers and review articles covering all aspects of environmental pollution and its impacts on ecosystems and human health.
Subject areas include, but are not limited to:
• Sources and occurrences of pollutants that are clearly defined and measured in environmental compartments, food and food-related items, and human bodies;
• Interlinks between contaminant exposure and biological, ecological, and human health effects, including those of climate change;
• Contaminants of emerging concerns (including but not limited to antibiotic resistant microorganisms or genes, microplastics/nanoplastics, electronic wastes, light, and noise) and/or their biological, ecological, or human health effects;
• Laboratory and field studies on the remediation/mitigation of environmental pollution via new techniques and with clear links to biological, ecological, or human health effects;
• Modeling of pollution processes, patterns, or trends that is of clear environmental and/or human health interest;
• New techniques that measure and examine environmental occurrences, transport, behavior, and effects of pollutants within the environment or the laboratory, provided that they can be clearly used to address problems within regional or global environmental compartments.