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Health Risk Assessment of Inhalation Exposure to Airborne Particle-Bound Nitrated Polycyclic Aromatic Hydrocarbons in Urban and Suburban Areas of South China.
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- معلومة اضافية
- المصدر:
Publisher: MDPI Country of Publication: Switzerland NLM ID: 101238455 Publication Model: Electronic Cited Medium: Internet ISSN: 1660-4601 (Electronic) Linking ISSN: 16604601 NLM ISO Abbreviation: Int J Environ Res Public Health Subsets: MEDLINE
- بيانات النشر:
Original Publication: Basel : MDPI, c2004-
- الموضوع:
- نبذة مختصرة :
Airborne particulates (PM 2.5 and TSP) were collected from outdoor and indoor areas at urban (Haizhu District) and suburban (Huadu District) sites from 2019 to 2020 in Guangzhou. Three nitro-polycyclic aromatic hydrocarbons (nitro-PAHs) in the airborne particulates were identified by a gas chromatograph equipped with a triple-quadrupole mass spectrometer. In the Haizhu District and Huadu District, the nitro-PAH concentrations in PM 2.5 and TSP did not show a significant decrease from winter to summer. From 2019 to 2020, the difference in the average concentration of nitro-PAHs in PM 2.5 and TSP in Guangzhou was relatively low and had no statistical significance. The diagnostic ratios of 2-nitrofluorene (2-NF)/1-nitropyrene (1-NP) in TSP are less than five, while for 2-NF/1-NP in outdoor PM 2.5 in the summer of 2019 and 2020 are more than five, which indicates that nitro-PAHs in the atmospheric PM 2.5 in Guangzhou during summer mainly originated from the secondary formation of atmospheric photochemical reactions between parent PAHs and oxidants (·OH, NO 3 , and O 3 ). 9-Nitroanthracene (9-NT) made the most significant contribution to the total nitro-PAH concentration. The incremental lifetime cancer risks (ILCRs) of nitro-PAHs in PM 2.5 and TSP by inhalation exposure indicated low potential health risks in the urban-suburban of Guangzhou.
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- Contributed Indexing:
Keywords: PM2.5; TSP; health risk; inhalation exposure; nitro-PAH
- الرقم المعرف:
0 (Polycyclic Aromatic Hydrocarbons)
0 (Particulate Matter)
0 (Air Pollutants)
0 (Nitrates)
0 (Coal)
- الموضوع:
Date Created: 20221211 Date Completed: 20221216 Latest Revision: 20230123
- الموضوع:
20240628
- الرقم المعرف:
PMC9739065
- الرقم المعرف:
10.3390/ijerph192315536
- الرقم المعرف:
36497610
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