PMID- 34392207
OWN - NLM
STAT- MEDLINE
DCOM- 20211022
LR  - 20211022
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 800
DP  - 2021 Dec 15
TI  - Molecular characterization of organic aerosols in Taiyuan, China: Seasonal 
      variation and source identification.
PG  - 149419
LID - S0048-9697(21)04493-4 [pii]
LID - 10.1016/j.scitotenv.2021.149419 [doi]
AB  - Fine particulate matter (PM(2.5)) samples collected in 2018 in Taiyuan, a typical 
      industrial and mining city in North China Plain (NCP), were characterized based 
      on ultrahigh-performance liquid chromatography (UHPLC) coupled with orbitrap mass 
      spectrometry. Potential molecular identifications based on precise molecular 
      weight were conducted to obtain the compositional and source information of 
      organic aerosols (OAs) in this city. Evident variation trends were observed 
      during the sampling period in the composition, degree of oxidation and saturation 
      of the obtained molecules. The proportion of CHOS- and CHO+ were increased from 
      winter to summer and then decreased, conversely the proportion of CHN+ was 
      decreased from winter to summer and then increased. By reclassifying the 
      molecules, OA molecules were observed to be more saturated and oxidized in 
      summer. It was caused by the high abundance of organosulfates (OSs) in summer, 
      and aromatic amines/N-heterocycle aromatic hydrocarbons (PANHs) in winter. 
      Molecular identification indicated that the OSs were basically originated from 
      biogenic source isoprene or monoterpene, while the aromatic amines and PANHs were 
      related to anthropogenic emissions of fossil fuel combustion, like other cities 
      in the NCP area. The prevailing northwesterlies in winter may bring coal-burning 
      pollutants from other cities, while the high abundance of organosulfates in 
      summer may be related to the PM(2.5) transportation from Shijiazhuang. This study 
      firstly demonstrates the molecular composition characteristics, potential 
      sources, and geographical origins of PM(2.5) in Taiyuan, which gives a 
      comprehensive understanding of PM(2.5) in a typical industrial and mining city.
CI  - Copyright (c) 2021 Elsevier B.V. All rights reserved.
FAU - Wang, Wei
AU  - Wang W
AD  - State Key Laboratory of Environmental and Biological Analysis, Department of 
      Chemistry, Hong Kong Baptist University, Hong Kong SAR, China.
FAU - Zhang, Yanhao
AU  - Zhang Y
AD  - State Key Laboratory of Environmental and Biological Analysis, Department of 
      Chemistry, Hong Kong Baptist University, Hong Kong SAR, China.
FAU - Jiang, Bin
AU  - Jiang B
AD  - State Key Laboratory of Organic Geochemistry, Guangzhou Institute of 
      Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
FAU - Chen, Yanyan
AU  - Chen Y
AD  - State Key Laboratory of Environmental and Biological Analysis, Department of 
      Chemistry, Hong Kong Baptist University, Hong Kong SAR, China.
FAU - Song, Yuanyuan
AU  - Song Y
AD  - State Key Laboratory of Environmental and Biological Analysis, Department of 
      Chemistry, Hong Kong Baptist University, Hong Kong SAR, China.
FAU - Tang, Yingtao
AU  - Tang Y
AD  - Guangzhou Key Laboratory of Environmental Catalysis and Pollution Control, 
      Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, 
      School of Environmental Science and Engineering, Institute of Environmental 
      Health and Pollution Control, Guangdong University of Technology, Guangzhou 
      510006, China.
FAU - Dong, Chuan
AU  - Dong C
AD  - Institute of Environmental Science, Shanxi University, Taiyuan 030006, China.
FAU - Cai, Zongwei
AU  - Cai Z
AD  - State Key Laboratory of Environmental and Biological Analysis, Department of 
      Chemistry, Hong Kong Baptist University, Hong Kong SAR, China; Guangzhou Key 
      Laboratory of Environmental Catalysis and Pollution Control, Guangdong Key 
      Laboratory of Environmental Catalysis and Health Risk Control, School of 
      Environmental Science and Engineering, Institute of Environmental Health and 
      Pollution Control, Guangdong University of Technology, Guangzhou 510006, China. 
      Electronic address: zwcai@hkbu.edu.hk.
LA  - eng
PT  - Journal Article
DEP - 20210802
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
RN  - 0 (Aerosols)
RN  - 0 (Air Pollutants)
RN  - 0 (Particulate Matter)
SB  - IM
MH  - Aerosols/analysis
MH  - *Air Pollutants/analysis
MH  - China
MH  - Cities
MH  - Environmental Monitoring
MH  - Particulate Matter/analysis
MH  - Seasons
OTO - NOTNLM
OT  - Molecular characterization
OT  - Orbitrap MS
OT  - Organic aerosol (OA)
OT  - Seasonal variation
OT  - Source identification
COIS- Declaration of competing interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2021/08/16 06:00
MHDA- 2023/02/25 06:00
CRDT- 2021/08/15 20:55
PHST- 2021/04/21 00:00 [received]
PHST- 2021/07/26 00:00 [revised]
PHST- 2021/07/29 00:00 [accepted]
PHST- 2021/08/16 06:00 [pubmed]
PHST- 2023/02/25 06:00 [medline]
PHST- 2021/08/15 20:55 [entrez]
AID - S0048-9697(21)04493-4 [pii]
AID - 10.1016/j.scitotenv.2021.149419 [doi]
PST - ppublish
SO  - Sci Total Environ. 2021 Dec 15;800:149419. doi: 10.1016/j.scitotenv.2021.149419. 
      Epub 2021 Aug 2.