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Based on the statistical data of environmental emergencies directly dispatched by the Ministry of Ecology and Environment from 2005 to 2022, this study used the standard deviation ellipse and mean center to explore the spatiotemporal variability of environmental emergencies, the results showed that the total quantity of environmental emergencies in China exhibited a downward tendency. The spatial mean center of environmental emergencies moved to the southwest of China, spanning a total distance of 734 kilometers in the past 17years, Hubei and Shanxi provinces had replaced Zhejiang, Guangdong and Jiangsu provinces as new high-incidence regions. Through the analysis of the characteristics of environmental emergencies, including the causes, pollution media and pollutants, it is found that production safety accidents were the primary cause of environmental emergencies, accounting for 45.12% of the total, followed by traffic accidents, which had surpassed production safety accidents in proportion over the past two years. Water pollution incidents were the most frequent environmental emergencies, and among the particularly major and the major environmental emergencies, water pollution incidents accounted for about 77.55%. Petroleum and heavy metals were two common pollutants in environmental emergencies, accounting for 16.31% and 5.88% of the total incidents, respectively. In the major and above level environmental emergencies, the proportion of heavy metals was higher than that of petroleum.

, authors=Xiao ZHAO, Si-li CHEN, Chen-xu LI, Yi-hui ZHAO, Sha CHANG, Ming CHEN, Yong-xin BING^*, authorsList=Xiao ZHAO, Si-li CHEN, Chen-xu LI, Yi-hui ZHAO, Sha CHANG, Ming CHEN, Yong-xin BING, authorCompany=null, correspAuthors=Yong-xin BING, 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=1314917573838336691, articleId=1314917573347603121, tenantId=1146029695717560320, journalId=1234093305789726721, language=CN, title=2005~2022年我国突发环境事件时空演变趋势及事件特征, columnId=1234106419604157142, journalTitle=中国环境科学, columnName=环境影响评价与管理, runingTitle=null, highlight=null, articleAbstract=

基于2005~2022年生态环境部直接调度的突发环境事件统计数据，使用空间重心转移曲线等工具，分析了我国突发环境事件的时空演变趋势，结果表明：我国突发环境事件总数整体呈下降趋势；突发环境事件重心向西南迁移，近17年移动距离约734km；中部地区的湖北、山西等省份逐渐取代浙江、广东、江苏等省份成为新的突发环境事件高发省份．通过对突发环境事件的诱因、污染介质、污染物等特征进行分析，发现：生产安全事故为突发环境事件第一大诱因，占总数的45.12%，其次为交通事故，近两年占比超过生产安全事故；流域突发水环境事件是最常见的突发环境事件，且重特大突发环境事件中，约77.55%为突发水环境事件；石油类和重金属是突发环境事件中两类常见的污染物，涉石油类和重金属污染的事件分别占事件总数的16.31%和5.88%，而在较大及以上突发环境事件中，涉重金属事件的比例高于石油类．

, authors=赵晓, 陈思莉, 李晨旭, 赵熠辉, 常莎, 陈明, 邴永鑫^*, authorsList=赵晓, 陈思莉, 李晨旭, 赵熠辉, 常莎, 陈明, 邴永鑫, authorCompany=null, correspAuthors=邴永鑫, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=eeyCvFHxKT+2YpfvyRF7JA==, magXml=ox0xD2a56lLNfTyrLxBsjQ==, pdfUrl=null, pdf=Zp7wQ3sAvxRSac/6G9Zt2g==, pdfFileSize=2207971, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=kAeRpEvF8gsuKHPS/B6Azg==, mapNumber=null, fund=null)}, authors=[Author(id=1314917575679636152, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1314917573347603121, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=1303756411@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1314917575994208954, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1314917573347603121, authorId=1314917575679636152, language=EN, stringName=Xiao ZHAO, firstName=Xiao, middleName=null, lastName=ZHAO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=South China Institute of Environmental Science, Ministry of Ecology and Environment (Research Institute of Eco-Environmental Emergency, Ministry of Ecology and Environment), Guangzhou 510535, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1314917576082289339, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1314917573347603121, authorId=1314917575679636152, language=CN, stringName=赵晓, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=生态环境部华南环境科学研究所（生态环境部生态环境应急研究所），广东 广州 510535, bio={"content":"

赵晓（1997-），女，安徽宿州人，工程师，硕士，主要从事突发环境事件应急处置技术研究．发表论文10余篇．1303756411@qq.com.

"}, bioImg=null, bioContent=

赵晓（1997-），女，安徽宿州人，工程师，硕士，主要从事突发环境事件应急处置技术研究．发表论文10余篇．1303756411@qq.com.

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