PMID- 37926248
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20231125
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 908
DP  - 2024 Jan 15
TI  - Distribution and source identification of polycyclic aromatic hydrocarbons (PAHs) 
      with PCA-MLR and PMF methods in the topsoil of Chengdu at SW, China.
PG  - 168263
LID - S0048-9697(23)06890-0 [pii]
LID - 10.1016/j.scitotenv.2023.168263 [doi]
AB  - In spite of extensive studies on the features of polycyclic aromatic hydrocarbons 
      (PAHs) as typical persistent organic pollutants (POPs) in cities, lack of 
      understanding on the distribution and source characteristics of PAHs in big city 
      with basin climate that can easily accelerate the pollution. Therefore, we 
      sampled and analyzed PAHs from forty-five topsoil samples evenly distributed in 
      Chengdu and the data shows that: (1) concentrations of  summation operator(16)PAHs in the study 
      area ranged from 88.56 to 4448.34 ng/g, with a mean value of 739.07 ng/g, which 
      is a lower level compared to similar cities, the distribution and proportion of 
      LMW-PAHs show that the migration of pollution is blocked by the topography of the 
      basin; (2) principal component analysis-multiple linear regression (PCA-MLR) and 
      positive matrix factorization (PMF) indicated that combustion of fossil fuels and 
      biomass is the most important source of PAHs in Chengdu; (3) the toxic 
      equivalency factors of benzo[a]pyrene indicated a low risk of  summation operator(16)PAHs in all 
      areas in Chengdu; (4) the inherited lifetime carcinogenic risk (ILCR) showed a 
      relatively low level of potential risk in the region, while female inhabitants in 
      several regions seem to suffer from higher health risks. Overall, our case study 
      of PAHs in the topsoil at Chengdu city at SW China indicates that the PCA-MLR 
      analysis is useful to identify the source of PAHs in the urban region with 
      complicated pollution source.
CI  - Copyright (c) 2023. Published by Elsevier B.V.
FAU - Zhou, Sizhuo
AU  - Zhou S
AD  - Department of Geochemistry and Applied Nuclear Technology in Geosciences Key 
      Laboratory of Sichuan Province, Chengdu University of Technology, 610059, China.
FAU - Wang, Xinyu
AU  - Wang X
AD  - Department of Geochemistry and Applied Nuclear Technology in Geosciences Key 
      Laboratory of Sichuan Province, Chengdu University of Technology, 610059, China; 
      State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu 
      University of Technology, 610059, China. Electronic address: 
      wangxinyu2014@cdut.edu.cn.
FAU - Yang, Ye
AU  - Yang Y
AD  - Department of Geochemistry and Applied Nuclear Technology in Geosciences Key 
      Laboratory of Sichuan Province, Chengdu University of Technology, 610059, China.
FAU - Wang, Ruilin
AU  - Wang R
AD  - Department of Applied Chemistry, Chengdu University of Technology, 610059, China. 
      Electronic address: wangruilin09@cdut.edu.cn.
FAU - Liao, Jianghai
AU  - Liao J
AD  - Department of Geochemistry and Applied Nuclear Technology in Geosciences Key 
      Laboratory of Sichuan Province, Chengdu University of Technology, 610059, China.
FAU - Zhang, Pu
AU  - Zhang P
AD  - International Center for Planetary Science, College of Earth Sciences, Chengdu 
      University of Technology, 610059, China.
FAU - Liu, Lei
AU  - Liu L
AD  - Department of Geochemistry and Applied Nuclear Technology in Geosciences Key 
      Laboratory of Sichuan Province, Chengdu University of Technology, 610059, China.
FAU - Zhao, Yongcai
AU  - Zhao Y
AD  - Department of Geochemistry and Applied Nuclear Technology in Geosciences Key 
      Laboratory of Sichuan Province, Chengdu University of Technology, 610059, China.
FAU - Deng, Yintian
AU  - Deng Y
AD  - Department of Geochemistry and Applied Nuclear Technology in Geosciences Key 
      Laboratory of Sichuan Province, Chengdu University of Technology, 610059, China.
LA  - eng
PT  - Journal Article
DEP - 20231104
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
SB  - IM
OTO - NOTNLM
OT  - Health risk assessment
OT  - PAHs
OT  - Source identification
OT  - Topsoil
COIS- Declaration of competing interest None.
EDAT- 2023/11/06 00:41
MHDA- 2023/11/06 00:42
CRDT- 2023/11/05 19:15
PHST- 2023/08/06 00:00 [received]
PHST- 2023/10/26 00:00 [revised]
PHST- 2023/10/30 00:00 [accepted]
PHST- 2023/11/06 00:42 [medline]
PHST- 2023/11/06 00:41 [pubmed]
PHST- 2023/11/05 19:15 [entrez]
AID - S0048-9697(23)06890-0 [pii]
AID - 10.1016/j.scitotenv.2023.168263 [doi]
PST - ppublish
SO  - Sci Total Environ. 2024 Jan 15;908:168263. doi: 10.1016/j.scitotenv.2023.168263. 
      Epub 2023 Nov 4.