PMID- 22061442
OWN - NLM
STAT- MEDLINE
DCOM- 20120402
LR  - 20191210
IS  - 1873-3336 (Electronic)
IS  - 0304-3894 (Linking)
VI  - 198
DP  - 2011 Dec 30
TI  - Size distributions and exposure concentrations of nanoparticles associated with 
      the emissions of oil mists from fastener manufacturing processes.
PG  - 182-7
LID - 10.1016/j.jhazmat.2011.10.028 [doi]
AB  - The aims of the present study were set out to measure size distributions and 
      estimate workers' exposure concentrations of oil mist nanoparticles in three 
      selected workplaces of the forming, threading, and heat treating areas in a 
      fastener manufacturing plant by using a modified electrical aerosol detector 
      (MEAD). The results were further compared with those simultaneously obtained from 
      a nanoparticle surface area monitor (NSAM) and a scanning mobility particle sizer 
      (SMPS) for the validation purpose. Results show that oil mist nanoparticles in 
      the three selected process areas were formed mainly through the evaporation and 
      condensation processes. The measured size distributions of nanoparticles were 
      consistently in the form of uni-modal. The estimated fraction of nanoparticles 
      deposited on the alveolar (AV) region was consistently much higher than that on 
      the head airway (HD) and tracheobronchial (TB) regions in both number and surface 
      area concentration bases. However, a significant difference was found in the 
      estimated fraction of nanoparticles deposited on each individual region while 
      different exposure metrics were used. Comparable results were found between 
      results obtained from both NSAM and MEAD. After normalization, no significant 
      difference can be found between the results obtained from SMPS and MEAD. It is 
      concluded that the obtained MEAD results are suitable for assessing oil mist 
      nanoparticle exposures.
CI  - Copyright (c) 2011 Elsevier B.V. All rights reserved.
FAU - Wang, Ying-Fang
AU  - Wang YF
AD  - Department of Environmental and Occupational Health, Medical College, National 
      Cheng Kung University, Tainan, Taiwan.
FAU - Tsai, Perng-Jy
AU  - Tsai PJ
FAU - Chen, Chun-Wan
AU  - Chen CW
FAU - Chen, Da-Ren
AU  - Chen DR
FAU - Dai, Yu-Tung
AU  - Dai YT
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PT  - Validation Study
DEP - 20111015
PL  - Netherlands
TA  - J Hazard Mater
JT  - Journal of hazardous materials
JID - 9422688
RN  - 0 (Aerosols)
RN  - 0 (Air Pollutants, Occupational)
RN  - 0 (Oils)
SB  - IM
MH  - Aerosols
MH  - Air Pollutants, Occupational/toxicity
MH  - Humans
MH  - *Industry
MH  - *Nanoparticles
MH  - Occupational Exposure
MH  - *Oils
MH  - Particle Size
MH  - Respiratory System/drug effects
EDAT- 2011/11/09 06:00
MHDA- 2012/04/03 06:00
CRDT- 2011/11/09 06:00
PHST- 2011/05/02 00:00 [received]
PHST- 2011/10/06 00:00 [revised]
PHST- 2011/10/08 00:00 [accepted]
PHST- 2011/11/09 06:00 [entrez]
PHST- 2011/11/09 06:00 [pubmed]
PHST- 2012/04/03 06:00 [medline]
AID - S0304-3894(11)01268-4 [pii]
AID - 10.1016/j.jhazmat.2011.10.028 [doi]
PST - ppublish
SO  - J Hazard Mater. 2011 Dec 30;198:182-7. doi: 10.1016/j.jhazmat.2011.10.028. Epub 
      2011 Oct 15.