Article(id=1314918491338142089, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314918450573701162, 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=1745769600000, receivedDateStr=2025-04-28, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1791430598339, onlineDateStr=2026-10-08, pubDate=1766160000000, pubDateStr=2025-12-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1791430598339, onlineIssueDateStr=2026-10-08, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1791430598339, creator=13701087609, updateTime=1791430598339, updator=13701087609, issue=Issue{id=1314918450573701162, tenantId=1146029695717560320, journalId=1234093305789726721, year='2025', volume='45', issue='12', pageStart='6513', pageEnd='7104', issueExtLink='null', onlineDate='null', pubDate='1766160000000', pubDateStr='2025-12-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1791430588620, creator='13701087609', updateTime=1791431575400, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1314922589479333965, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314918450573701162, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1314922589479333966, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314918450573701162, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=6571, endPage=6583, ext={EN=ArticleExt(id=1314918491543662986, articleId=1314918491338142089, tenantId=1146029695717560320, journalId=1234093305789726721, language=EN, title=Analysis of changes in ozone precursors and formation sensitivity in the Beijing-Tianjin-Hebei region based on TROPOMI and Ground observations, columnId=1234106386020365051, journalTitle=China Environmental Science, columnName=Air Pollution Control, runingTitle=null, highlight=null, articleAbstract=

This study investigated the spatiotemporal variations and relationships of O₃, HCHO, and NO₂, as well as O₃ formation sensitivity (OFS) and the distribution changes of O₃-NO_x-VOCs control regime in the Beijing-Tianjin-Hebei (BTH) region from 2019 to 2023, using data acquired from the TROPOMI satellite sensor and ground-based monitoring networks. The results showed that: (1) O₃ concentrations in the BTH region were characterized by higher levels in the south and lower levels in the north, with an overall trend of initial decrease followed by an increase. The number of O₃ pollution days was reduced by approximately 30%. A significant positive correlation was observed between O₃ concentration and air temperature (r=0.85, P<0.001). (2) High-value areas of HCHO and NO₂ vertical column densities (VCDs) were concentrated in the Beijing-Tianjin-Langfang/Tangshan regions and the Shijiazhuang-Handan-Xingtai urban agglomeration. During the study period, a decrease of approximately 3% in HCHO VCDs and about 12% in NO₂VCDs was recorded. HCHO variations were significantly influenced by temperature, while NO₂ was primarily driven by anthropogenic activities. Based on daily data during the OPHF period in the BTH region, nonlinear relationships between O₃ concentration and the ratio of HCHO to NO₂ VCDs (FNR) were found to be consistent with photochemical models of O₃-NO_x-VOCs reactions. The peak O₃ concentration occurred at an FNR value of 4.0, with the transitional regime ranging from 3.2 to 4.9. Although differences were observed in the fitting curves between O₃ concentration and FNR across different cities, the correlation coefficients were all above 0.65. (3) From 2019 to 2023, the O₃ formation regime during the OPHF period was shown to transition from mixed NO_x-VOCs limited to VOCs limited conditions, with the area of VOCs limited regime expanding by approximately 23%. Therefore, it is suggested that greater emphasis should be placed on reducing VOCs emissions to mitigate O₃ pollution in the future. Ozone formation sensitivity was significantly influenced by anthropogenic factors. The Pearson correlation coefficients between FNR and NO₂ VCDs, CO VCDs, and HCHO VCDs were -0.86, -0.62, and 0.14 (P<0.001), respectively. Among meteorological factors, temperature and humidity were found to have significant effects on FNR, with correlation coefficients of 0.88 and 0.41 (P<0.001), respectively.

, authors=Xin-hui WANG^{1, 2}, xiu-e SHEN^{1, 2}, Lei JIANG^{1, 2, *}, Jian ZHANG^{1, 2}, Shuang SUN¹, Lei LI¹, Xiao-ke SONG¹, authorsList=Xin-hui WANG, xiu-e SHEN, Lei JIANG, Jian ZHANG, Shuang SUN, Lei LI, Xiao-ke SONG, authorCompany=null, correspAuthors=Lei JIANG, 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=1314918491765961099, articleId=1314918491338142089, tenantId=1146029695717560320, journalId=1234093305789726721, language=CN, title=TROPOMI和地面监测的京津冀臭氧前体物及生成敏感性分析, columnId=1234106388364981004, journalTitle=中国环境科学, columnName=大气污染与控制, runingTitle=null, highlight=null, articleAbstract=

基于TROPOMI卫星遥感数据与地面监测数据，分析了京津冀2019至2023年O₃及其前体物HCHO、NO₂的时空变化特征及相关关系，进一步探讨了O₃生成敏感性、O₃-NO_x-VOCs控制区的演变趋势及影响因素．结果表明：京津冀O₃浓度整体呈南高北低、先降后升的时空分布特征，污染天数下降约30%；O₃浓度与气温呈显著正相关（Pearson系数r=0.85，P<0.001）．HCHO与NO₂柱浓度高值区集中在京津廊/京津唐及石家庄-邯郸-邢台城市群，研究期间HCHO柱浓度下降约3%．NO₂柱浓度下降约12%．HCHO受气温影响明显，NO₂则主要受人类活动驱动．基于5~9月臭氧污染高发季（OPHF）的逐日数据，O₃浓度与HCHO、NO₂柱浓度的非线性关系符合O₃-NO_x-VOCs化学反应机制模型，京津冀整体O₃浓度在HCHO/NO₂柱浓度比（FNR）为4.0时达到峰值，过渡状态对应的FNR范围为3.2~4.9；年度O₃浓度峰值时对应FNR呈下降趋势．不同城市，O₃浓度与FNR拟合曲线存在差异，但相关系数均高于0.65.2019~2023年OPHF季O₃-NO_x-VOCs控制区总体由协同控制区向VOCs控制区转变，VOCs控制区面积增长约23%，表明未来降低O₃浓度应重点关注VOCs减排．臭氧生成敏感性受人类活动影响明显，FNR与NO₂、CO、HCHO柱浓度的相关系数分别为-0.86、-0.67、0.14（P<0.001）．气象因素中气温和湿度对FNR影响显著，其相关系数分别为0.88和0.41（p<0.001）．

, authors=王新辉^{1, 2}, 沈秀娥^{1, 2}, 姜磊^{1, 2, *}, 张健^{1, 2}, 孙爽¹, 李磊¹, 宋小可¹, authorsList=王新辉, 沈秀娥, 姜磊, 张健, 孙爽, 李磊, 宋小可, authorCompany=null, correspAuthors=姜磊, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=NDanyW66m2Poad3kPwQueg==, magXml=cADFn6wVgXrfMyfjjvws9A==, pdfUrl=null, pdf=50Wj22lKDqZr+hARebDUFw==, pdfFileSize=6589730, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=JACGyGnrdNSBvlW8eM8Sig==, mapNumber=null, fund=null)}, authors=[Author(id=1314918493686952339, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1314918491338142089, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=wangxinhui1@126.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1314918493858918806, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1314918491338142089, authorId=1314918493686952339, language=EN, stringName=Xin-hui WANG, firstName=Xin-hui, middleName=null, lastName=WANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=^{1, 2}, address=^1.Beijing Municipal Ecological and Environmental Monitoring Center, Beijing 100048, China
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王新辉（1990-），女，山东泰安人，高级工程师，硕士，主要从事大气环境定量遥感及环境遥感应用研究．发表论文3篇．wangxinhui1@126.com.

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王新辉（1990-），女，山东泰安人，高级工程师，硕士，主要从事大气环境定量遥感及环境遥感应用研究．发表论文3篇．wangxinhui1@126.com.

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