Article(id=1314921943116112641, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314921940238828053, articleNumber=null, orderNo=null, doi=null, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1753113600000, receivedDateStr=2025-07-22, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1791431421307, onlineDateStr=2026-10-08, pubDate=1768838400000, pubDateStr=2026-01-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1791431421307, onlineIssueDateStr=2026-10-08, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1791431421307, creator=13701087609, updateTime=1791431421307, updator=13701087609, issue=Issue{id=1314921940238828053, tenantId=1146029695717560320, journalId=1234093305789726721, year='2026', volume='46', issue='1', pageStart='1', pageEnd='592', issueExtLink='null', onlineDate='null', pubDate='1768838400000', pubDateStr='2026-01-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1791431420621, creator='13701087609', updateTime=1791431552947, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1314922495317210104, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314921940238828053, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1314922495317210105, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314921940238828053, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1, endPage=10, ext={EN=ArticleExt(id=1314921943317439234, articleId=1314921943116112641, tenantId=1146029695717560320, journalId=1234093305789726721, language=EN, title=The distribution of soil heavy metal contamination and source apportionment in typical shale gas extraction sites in fuling, Chongqing Karst Areas, columnId=null, journalTitle=China Environmental Science, columnName=null, runingTitle=null, highlight=null, articleAbstract=

The large-scale development of shale gas is vital for enhancing energy security and driving regional economic development, yet systematic studies on the potential pollution risks associated with shale gas extraction activities in karst regions remain scarce. This study, focusing on the Fuling shale gas extraction area in Chongqing, investigates heavy metal concentrations and their spatial distribution in soil and groundwater during April to June 2024. It aims to identify potential sources of heavy metals and assess their environmental impacts. Through source apportionment and pollution risk assessments, the study clarifies the contribution of shale gas extraction to changes in heavy metal concentrations in both soil and groundwater and evaluates the associated pollution risks. The findings reveal that while most heavy metals in the soil and groundwater do not show significant exceedances, slight exceedances of Cd, Pb, and As were observed in the soil. Notably, Ba and Sr exhibited substantial enrichment and high spatial variability, with the average Ba concentration in soil reaching 561mg/kg, nearly twice the regional background level. The pollution indices for Ba, Sr, Cd, and Cu in soil were 3.08, 2.07, 1.42, and 1.21, respectively, indicating that shale gas extraction plays a key role in the accumulation of Ba and Sr in the environment. Furthermore, strong correlations (0.84, 0.78, and 0.76) between Cu, Sr, and Ba in both soil and groundwater suggest a common source for these metals. Source apportionment using APCS-MLR and PMF models revealed that agricultural, natural, shale gas extraction, and industrial sources contributed 17.1%, 28.1%, 15.4%, and 39.4% of the heavy metals in the soil, with shale gas extraction accounting for 50.9% and 47.4% of the Ba and Sr concentrations. In groundwater, shale gas extraction contributed 14.6% of the heavy metal concentrations, with Ba contributing as much as 30.3%. Overall, while the pollution levels in the soil-groundwater system of the Fuling shale gas extraction area are relatively low, the localized enrichment of Ba and Sr presents potential ecological risks. These findings provide a scientific basis for environmental monitoring and risk management of shale gas extraction in karst regions.

, authors=Hong-cheng BAI^{1, *}, Xiao-qian ZHANG², Xin-yue ZHANG¹, Si-yu PENG¹, Xing WANG³, authorsList=Hong-cheng BAI, Xiao-qian ZHANG, Xin-yue ZHANG, Si-yu PENG, Xing WANG, authorCompany=null, correspAuthors=Hong-cheng BAI, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1314921944156300037, articleId=1314921943116112641, tenantId=1146029695717560320, journalId=1234093305789726721, language=CN, title=重庆涪陵喀斯特地貌发育区页岩气开采场地土壤-地下水重金属污染分布特征及源解析, columnId=1314921943346802741, journalTitle=中国环境科学, columnName=岩溶关键带重金属污染成因, runingTitle=null, highlight=null, articleAbstract=

以重庆市涪陵页岩气开采区为例，结合2024年4月至6月期间对研究区土壤和地下水中重金属含量及空间分布特征的调查分析，分析该地区重金属的潜在来源及其环境影响．并进一步通过源解析和污染风险评估，明确了页岩气开采活动对土壤和地下水中重金属浓度变化的贡献及相关污染风险．研究结果表明，开采区土壤和地下水中的大部分重金属未表现出系统性超标，然而土壤中Cd、Pb和As存在轻度超标，而Ba和Sr在土壤和地下水中的显著富集和较高空间变异性尤为突出．特别地，开采区土壤中Ba的平均含量为561mg/kg，约为区域土壤背景含量的两倍．另外，开采区土壤中Ba、Sr、Cd和Cu的污染指分别为3.08、2.07、1.42和1.21，表明页岩气开采活动可能是Ba、Sr在环境中累积的主要因素．再者，Cu、Sr和Ba在土壤和地下水中的相关系数分别为0.84、0.78和0.76，表明这三种重金属可能来源一致．进一步地，通过APCS-MLR和PMF模型解析，农业源、自然源、页岩气开采源和工业源对土壤重金属的贡献率分别为17.1%、28.1%、15.4%和39.4%，其中页岩气开采源对土壤中Ba和Sr的贡献率分别达到50.9%和47.4%．对于开采区地下水而言，页岩气开采源对重金属浓度的贡献率为14.6%，其中对Ba的贡献率高达30.3%．总体而言，涪陵焦石坝页岩气开采区的土壤-地下水系统污染水平较低，但Ba和Sr的局部富集增加了两者潜在的生态风险．

, authors=柏宏成^{1, *}, 张小谦², 章馨月¹, 彭思宇¹, 王星³, authorsList=柏宏成, 张小谦, 章馨月, 彭思宇, 王星, authorCompany=null, correspAuthors=柏宏成, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=f1a86rm64bIFw3rC7NhQIA==, magXml=+H/XRBQU/F9gDHA/OJ8G4A==, pdfUrl=null, pdf=5M0Jn/elUVAmzcxppmae0w==, pdfFileSize=2606376, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=y3wv8E6/zndGzVi3bQjw5Q==, mapNumber=null, fund=null)}, authors=[Author(id=1314921944680588048, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1314921943116112641, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=baihongcheng@cdu.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=1, authorType=1, ext={EN=AuthorExt(id=1314921945032909586, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1314921943116112641, authorId=1314921944680588048, language=EN, stringName=Hong-cheng BAI, firstName=Hong-cheng, middleName=null, lastName=BAI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=^{1, *}, address=^1.School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1314921945108407059, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1314921943116112641, authorId=1314921944680588048, language=CN, stringName=柏宏成, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=^{1, *}, address=^1.成都大学建筑与土木工程学院，四川 成都 610106, bio={"content":"

柏宏成（1990-），男，重庆人，副研究员，博士，主要从事污染物环境行为研究．发表论文20余篇．baihongcheng@cdu.edu.cn.

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柏宏成（1990-），男，重庆人，副研究员，博士，主要从事污染物环境行为研究．发表论文20余篇．baihongcheng@cdu.edu.cn.

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