Article(id=1314922173014303086, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314922077824578469, 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=1720022400000, receivedDateStr=2024-07-04, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1791431476119, onlineDateStr=2026-10-08, pubDate=1771516800000, pubDateStr=2026-02-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1791431476119, onlineIssueDateStr=2026-10-08, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1791431476118, creator=13701087609, updateTime=1791431476118, updator=13701087609, issue=Issue{id=1314922077824578469, tenantId=1146029695717560320, journalId=1234093305789726721, year='2026', volume='46', issue='2', pageStart='593', pageEnd='1184', issueExtLink='null', onlineDate='null', pubDate='1771516800000', pubDateStr='2026-02-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1791431453424, creator='13701087609', updateTime=1791431520751, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1314922360277398376, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314922077824578469, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1314922360277398377, tenantId=1146029695717560320, journalId=1234093305789726721, issueId=1314922077824578469, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=657, endPage=665, ext={EN=ArticleExt(id=1314922173291127151, articleId=1314922173014303086, tenantId=1146029695717560320, journalId=1234093305789726721, language=EN, title=Impacts of firework emissions on PM_2.5 composition and reactive nitrogen species in Zhengzhou, columnId=1234106386020365051, journalTitle=China Environmental Science, columnName=Air Pollution Control, runingTitle=null, highlight=null, articleAbstract=

A comparative analysis of air quality in Zhengzhou before and after the Spring Festival from 2020 to 2023 was conducted, and high time-resolution observational data on PM_2.5 chemical components and reactive nitrogen gases were utilized to systematically evaluate the impact of fireworks during the 2023 Spring Festival on PM_2.5 concentrations, its chemical composition, NH₃, and HONO. The results indicate that PM_2.5 concentrations in Zhengzhou around the Spring Festival decreased by 67% from 2020 to 2022. However, following the relaxation of fireworks restrictions in 2023, PM_2.5 concentrations increased by 123% year-on-year, with concentrations during the peak fireworks-burning period surging to 8.7 times those of previous periods. Fireworks contributed to 49.6% of PM_2.5 concentrations during the 7-day Spring Festival holiday, with the most significant increases observed in the concentrations of K⁺, SO₄^2-, and Cl^-. Simultaneously, concentrations of toxic and hazardous heavy metal elements, including Al, V, Cr, Cu, Zn, Ba, and Pb, increased significantly during the fireworks-burning period. Furthermore, NH₃ concentrations reached (18.4 ± 8.9)μg/m³ during this period, 1.7 times higher than during non-festival periods, a change that promoted an increase in aerosol pH values. Additionally, HONO concentrations rose to (1.26 ± 0.83)×10^-9 during fireworks burning, representing an increase of 72.6%. This is likely because fireworks led to elevated atmospheric concentrations of NO, NO₂, particulate matter, and nitrates, which in turn promoted the heterogeneous conversion of NO₂, nitrate photolysis, and homogeneous reactions, thereby facilitating HONO formation.

, authors=Jie TAO¹, Xin-hao SHANG^{2, 3}, Ming-kai WANG⁴, Xin-yuan ZHANG⁴, Shen-bo WANG^{2, *}, Rui-qin ZHANG², authorsList=Jie TAO, Xin-hao SHANG, Ming-kai WANG, Xin-yuan ZHANG, Shen-bo WANG, Rui-qin ZHANG, authorCompany=null, correspAuthors=Shen-bo WANG, 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=1314922173702168944, articleId=1314922173014303086, tenantId=1146029695717560320, journalId=1234093305789726721, language=CN, title=烟花爆竹燃放对郑州市PM_2.5化学组分及活性氮物种的影响, columnId=1234106388364981004, journalTitle=中国环境科学, columnName=大气污染与控制, runingTitle=null, highlight=null, articleAbstract=

对比分析了郑州市2020~2023年春节前后空气质量，利用高时间分辨率的PM_2.5化学组分及活性氮气体观测数据，系统评估了2023年春节期间烟花燃放对PM_2.5浓度及其化学组分，NH₃与HONO的影响．结果表明，2020~2022年郑州市春节前后PM_2.5浓度下降了67%，而2023年燃放政策放宽后PM_2.5浓度同比上升了123%，烟花集中燃放时段的PM_2.5浓度显著上升至以往时段的8.7倍．春节7d假期内烟花燃放贡献了49.6%的PM_2.5浓度，其中K⁺、SO₄^2-和Cl^-浓度的增幅最高．同时，烟花燃放时段有毒有害重金属元素Al、V、Cr、Cu、Zn、Ba和Pb的浓度显著增加．另一方面，烟花燃放时段NH₃浓度达到（18.4±8.9）μg/m³，较非春节时段高出1.7倍，该变化促进了气溶胶pH值上升．此外，烟花燃放期间HONO浓度升至（1.26±0.83）×10^-9，增幅达72.6%；其原因可能是烟花燃放导致大气中NO、NO₂、颗粒物及硝酸盐浓度升高，进而促进了NO₂的非均相转化，硝酸盐光解及均相反应，有利于HONO的生成．

, authors=陶杰¹, 尚鑫豪^{2, 3}, 王铭凯⁴, 张馨元⁴, 王申博^{2, *}, 张瑞芹², authorsList=陶杰, 尚鑫豪, 王铭凯, 张馨元, 王申博, 张瑞芹, authorCompany=null, correspAuthors=王申博, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=LpCfr5MTe6FgCeDHdpvyjg==, magXml=H2Gxy0/1Ne9hFXrs8IRNWg==, pdfUrl=null, pdf=mBtCauZFiKmh1EKC3qOyNQ==, pdfFileSize=1641093, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=0qBYbdm8ZCE4xHHJ0v24dw==, mapNumber=null, fund=null)}, authors=[Author(id=1314922175790932351, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1314922173014303086, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=363428151@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1314922175866429825, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1314922173014303086, authorId=1314922175790932351, language=EN, stringName=Jie TAO, firstName=Jie, middleName=null, lastName=TAO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1.Zhengzhou Ecology and Environmental Monitoring Center of Henan Province, Zhengzhou 450046, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1314922175941927298, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1314922173014303086, authorId=1314922175790932351, language=CN, stringName=陶杰, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=¹, address=^1.河南省郑州生态环境监测中心，河南 郑州 450046, bio={"content":"

陶杰（1976-），男，河南新野人，高级工程师，学士，主要研究方向为大气污染研究与控制．发表论文5篇．363428151@qq.com.

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陶杰（1976-），男，河南新野人，高级工程师，学士，主要研究方向为大气污染研究与控制．发表论文5篇．363428151@qq.com.

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