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<PubmedArticle><MedlineCitation Status="MEDLINE" Owner="NLM" IndexingMethod="Automated"><PMID Version="1">34032062</PMID><DateCompleted><Year>2021</Year><Month>05</Month><Day>31</Day></DateCompleted><DateRevised><Year>2021</Year><Month>05</Month><Day>31</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0250-3301</ISSN><JournalIssue CitedMedium="Print"><Volume>42</Volume><Issue>6</Issue><PubDate><Year>2021</Year><Month>Jun</Month><Day>08</Day></PubDate></JournalIssue><Title>Huan jing ke xue= Huanjing kexue</Title><ISOAbbreviation>Huan Jing Ke Xue</ISOAbbreviation></Journal><ArticleTitle>[Pollution Characteristics and Risk Assessment of Nitro Polycyclic Aromatic Hydrocarbons in PM<sub>2.5</sub> of Nanjing, China].</ArticleTitle><Pagination><StartPage>2626</StartPage><EndPage>2633</EndPage><MedlinePgn>2626-2633</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.13227/j.hjkx.202009238</ELocationID><Abstract><AbstractText>Nitro polycyclic aromatic hydrocarbons (NPAHs) are important pollutants with carcinogenic effects present in PM<sub>2.5</sub>. To analyze the pollution characteristics and sources of NPAHs, 14 samples of PM<sub>2.5</sub> were collected in Nanjing from November 2017 to March 2018. The results showed that, 2,8-dinitrodibenzothiophene (743 pg&#xb7;m<sup>-3</sup>), 2, 7-dinitrofluorene (331 pg&#xb7;m<sup>-3</sup>), 9-nitroanthracene (326 pg&#xb7;m<sup>-3</sup>), 3-nitrofluoranthene (217 pg&#xb7;m<sup>-3</sup>), and 1,8-dinitropyrene (193 pg&#xb7;m<sup>-3</sup>) were dominant, and the detection concentrations notably varied between seasons; the highest concentrations occurred in winter (3082 pg&#xb7;m<sup>-3</sup>) followed by autumn (1553 pg&#xb7;m<sup>-3</sup>) and spring (1218 pg&#xb7;m<sup>-3</sup>). The ratio of nitrofluoranthene and 1-nitropyrene concentrations, and 9-nitroanthracene and 1-nitropyrene concentrations, indicated that the main sources of NPAHs in the PM<sub>2.5</sub> of Nanjing were photooxidation of polycyclic aromatic hydrocarbons and biomass burning. NPAHs were more typically associated with smaller particles, which further indicated that secondary formation is an important source. The current carcinogenic risk of NPAHs in PM<sub>2.5</sub> in Nanjing is controllable, and dinitro-polycyclic aromatic hydrocarbons represent the highest level of risk. The data presented in this study provide important baseline information that can inform the management of risks associated with NPAHs in PM<sub>2.5</sub> in Nanjing.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Fu</LastName><ForeName>Yin-Yin</ForeName><Initials>YY</Initials><AffiliationInfo><Affiliation>State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China.</Affiliation></AffiliationInfo><AffiliationInfo><Affiliation>Jiangsu Academy of Environmental Industry and Technology, Nanjing 210019, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Wen</LastName><ForeName>Hao-Zhe</ForeName><Initials>HZ</Initials><AffiliationInfo><Affiliation>State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Wang</LastName><ForeName>Xiang-Hua</ForeName><Initials>XH</Initials><AffiliationInfo><Affiliation>Jiangsu Academy of Environmental Industry and Technology, Nanjing 210019, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Yu</LastName><ForeName>Nan-Yang</ForeName><Initials>NY</Initials><AffiliationInfo><Affiliation>State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Li</LastName><ForeName>Bing</ForeName><Initials>B</Initials><AffiliationInfo><Affiliation>Jiangsu Academy of Environmental Industry and Technology, Nanjing 210019, China.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Wei</LastName><ForeName>Si</ForeName><Initials>S</Initials><AffiliationInfo><Affiliation>State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China.</Affiliation></AffiliationInfo></Author></AuthorList><Language>chi</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>China</Country><MedlineTA>Huan Jing Ke Xue</MedlineTA><NlmUniqueID>8405344</NlmUniqueID><ISSNLinking>0250-3301</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D000393">Air Pollutants</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D052638">Particulate Matter</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D011084">Polycyclic Aromatic Hydrocarbons</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D000393" MajorTopicYN="Y">Air Pollutants</DescriptorName><QualifierName UI="Q000009" MajorTopicYN="N">adverse effects</QualifierName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D002681" MajorTopicYN="N" Type="Geographic">China</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D004784" MajorTopicYN="N">Environmental Monitoring</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D052638" MajorTopicYN="N">Particulate Matter</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D011084" MajorTopicYN="Y">Polycyclic Aromatic Hydrocarbons</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018570" MajorTopicYN="N">Risk Assessment</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012621" MajorTopicYN="N">Seasons</DescriptorName></MeshHeading></MeshHeadingList><KeywordList Owner="NOTNLM"><Keyword MajorTopicYN="N">1,8-dnitropyrene (1, 8N-Pyr)</Keyword><Keyword MajorTopicYN="N">3-nitrofluoranthene (3N-Flt)</Keyword><Keyword MajorTopicYN="N">9-nitroanthracene (9N-Ant)</Keyword><Keyword MajorTopicYN="N">biomass burning</Keyword><Keyword MajorTopicYN="N">carcinogenic risk</Keyword><Keyword MajorTopicYN="N">secondary particles</Keyword></KeywordList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="entrez"><Year>2021</Year><Month>5</Month><Day>25</Day><Hour>7</Hour><Minute>2</Minute></PubMedPubDate><PubMedPubDate PubStatus="pubmed"><Year>2021</Year><Month>5</Month><Day>26</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2021</Year><Month>6</Month><Day>1</Day><Hour>6</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">34032062</ArticleId><ArticleId IdType="doi">10.13227/j.hjkx.202009238</ArticleId></ArticleIdList></PubmedData></PubmedArticle></PubmedArticleSet>