PMID- 28115147
OWN - NLM
STAT- MEDLINE
DCOM- 20170209
LR  - 20171230
IS  - 1001-0742 (Print)
IS  - 1001-0742 (Linking)
VI  - 51
DP  - 2017 Jan
TI  - Characterization of particle number size distribution and new particle formation 
      in Southern China.
PG  - 342-351
LID - S1001-0742(16)30277-7 [pii]
LID - 10.1016/j.jes.2016.05.039 [doi]
AB  - Knowledge of particle number size distribution (PND) and new particle formation 
      (NPF) events in Southern China is essential for mitigation strategies related to 
      submicron particles and their effects on regional air quality, haze, and human 
      health. In this study, seven field measurement campaigns were conducted from 
      December 2013 to May 2015 using a scanning mobility particle sizer (SMPS) at four 
      sites in Southern China, including three urban sites and one background site. 
      Particles were measured in the size range of 15-615nm, and the median particle 
      number concentrations (PNCs) were found to vary in the range of 
      0.3x10(4)-2.2x10(4)cm(-3) at the urban sites and were approximately 
      0.2x10(4)cm(-3) at the background site. The peak diameters at the different sites 
      varied largely from 22 to 102nm. The PNCs in the Aitken mode (25-100nm) at the 
      urban sites were up to 10 times higher than they were at the background site, 
      indicating large primary emissions from traffic at the urban sites. The diurnal 
      variations of PNCs were significantly influenced by both rush hour traffic at the 
      urban sites and NPF events. The frequencies of NPF events at the different sites 
      were 0%-30%, with the highest frequency occurring at an urban site during autumn. 
      With higher SO(2) concentrations and higher ambient temperatures being necessary, 
      NPF at the urban site was found to be more influenced by atmospheric oxidizing 
      capability, while NPF at the background site was limited by the condensation 
      sink. This study provides a unique dataset of particle number and size 
      information in various environments in Southern China, which can help understand 
      the sources, formation, and the climate forcing of aerosols in this quickly 
      developing region, as well as help constrain and validate NPF modeling.
CI  - Copyright (c) 2016. Published by Elsevier B.V.
FAU - Huang, Xiaofeng
AU  - Huang X
AD  - Key Laboratory for Urban Habitat Environmental Science and Technology, School of 
      Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 
      518055, China.
FAU - Wang, Chuan
AU  - Wang C
AD  - Key Laboratory for Urban Habitat Environmental Science and Technology, School of 
      Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 
      518055, China.
FAU - Peng, Jianfei
AU  - Peng J
AD  - State Key Joint Laboratory of Environmental Simulation and Pollution Control, 
      College of Environmental Sciences and Engineering, Peking University, Beijing 
      100871, China.
FAU - He, Lingyan
AU  - He L
AD  - Key Laboratory for Urban Habitat Environmental Science and Technology, School of 
      Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 
      518055, China. Electronic address: hely@pku.edu.cn.
FAU - Cao, Liming
AU  - Cao L
AD  - Key Laboratory for Urban Habitat Environmental Science and Technology, School of 
      Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 
      518055, China.
FAU - Zhu, Qiao
AU  - Zhu Q
AD  - Key Laboratory for Urban Habitat Environmental Science and Technology, School of 
      Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 
      518055, China.
FAU - Cui, Jie
AU  - Cui J
AD  - Key Laboratory for Urban Habitat Environmental Science and Technology, School of 
      Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 
      518055, China.
FAU - Wu, Zhijun
AU  - Wu Z
AD  - State Key Joint Laboratory of Environmental Simulation and Pollution Control, 
      College of Environmental Sciences and Engineering, Peking University, Beijing 
      100871, China.
FAU - Hu, Min
AU  - Hu M
AD  - State Key Joint Laboratory of Environmental Simulation and Pollution Control, 
      College of Environmental Sciences and Engineering, Peking University, Beijing 
      100871, China.
LA  - eng
PT  - Journal Article
DEP - 20160818
PL  - Netherlands
TA  - J Environ Sci (China)
JT  - Journal of environmental sciences (China)
JID - 100967627
RN  - 0 (Aerosols)
RN  - 0 (Air Pollutants)
RN  - 0 (Particulate Matter)
SB  - IM
MH  - Aerosols/analysis
MH  - Air Pollutants/*analysis
MH  - Air Pollution/statistics & numerical data
MH  - Atmosphere
MH  - China
MH  - *Environmental Monitoring
MH  - Particle Size
MH  - Particulate Matter/*analysis
OTO - NOTNLM
OT  - Air pollution
OT  - New particle formation (NPF)
OT  - Particle number size distribution (PND)
OT  - Scanning mobility particle sizer (SMPS)
OT  - Southern China
EDAT- 2017/01/25 06:00
MHDA- 2017/02/10 06:00
CRDT- 2017/01/25 06:00
PHST- 2016/01/20 00:00 [received]
PHST- 2016/03/07 00:00 [revised]
PHST- 2016/05/09 00:00 [accepted]
PHST- 2017/01/25 06:00 [entrez]
PHST- 2017/01/25 06:00 [pubmed]
PHST- 2017/02/10 06:00 [medline]
AID - S1001-0742(16)30277-7 [pii]
AID - 10.1016/j.jes.2016.05.039 [doi]
PST - ppublish
SO  - J Environ Sci (China). 2017 Jan;51:342-351. doi: 10.1016/j.jes.2016.05.039. Epub 
      2016 Aug 18.