PMID- 15204791
OWN - NLM
STAT- MEDLINE
DCOM- 20041006
LR  - 20191026
IS  - 0895-8378 (Print)
IS  - 0895-8378 (Linking)
VI  - 16 Suppl 1
DP  - 2004
TI  - On-road exposure to highway aerosols. 1. Aerosol and gas measurements.
PG  - 31-9
AB  - On-road experiments were conducted to determine the sensitivities of rats to 
      real-world aerosol. This article summarizes the on-road aerosol and gas 
      measurements and provides background information for the companion paper on the 
      rat exposures. Measurements were carried out over 10 days, 6 h/day, driving a 
      route from Rochester to Buffalo. Aerosol instrumentation used in this study 
      included two scanning mobility particle sizers (SMPS) to determine the aerosol 
      size distribution from 10 to 300 nm, 2 stand-alone condensation particle counters 
      to determine the total aerosol number concentration, and an electrical aerosol 
      detector to determine the aerosol length concentration. A thermal denuder (TD) 
      was used with one of the SMPS instruments to determine the size distribution of 
      the non-volatile fraction. Filter samples were collected and analyzed for 
      elemental carbon, and gas analyzers measured ambient levels of CO, CO(2), and NO. 
      Average daily total aerosol number concentration ranged from 200,000 to 560,000 
      particles/cm(3). Past studies on urban highways have measured total number 
      concentrations ranging between 10(4) and 10(6) particles/cm(3). The average daily 
      NO concentration ranged from 0.10 to 0.24 ppm and the corresponding CO(2) 
      concentration ranged from 400 to 420 ppm. The average daily geometric number mean 
      particle size determined by the SMPS ranged from 15 to 20 nm. The TD reduced the 
      average SMPS number concentration between 87 and 95% and the SMPS volume between 
      54 and 83%, suggesting that most of the particles consisted of volatile material. 
      The TD also increased the geometric number mean diameter from 15 to 20 nm to 30 
      to 40 nm.
FAU - Kittelson, D B
AU  - Kittelson DB
AD  - Department of Mechanical Engineering, University of Minnesota, Minneapolis, 
      55455, USA.
FAU - Watts, W F
AU  - Watts WF
FAU - Johnson, J P
AU  - Johnson JP
FAU - Remerowki, M L
AU  - Remerowki ML
FAU - Ische, E E
AU  - Ische EE
FAU - Oberdorster, G
AU  - Oberdorster G
FAU - Gelein, R M
AU  - Gelein RM
FAU - Elder, A
AU  - Elder A
FAU - Hopke, P K
AU  - Hopke PK
FAU - Kim, E
AU  - Kim E
FAU - Zhao, W
AU  - Zhao W
FAU - Zhou, L
AU  - Zhou L
FAU - Jeong, C-H
AU  - Jeong CH
LA  - eng
PT  - Journal Article
PT  - Research Support, U.S. Gov't, Non-P.H.S.
PL  - England
TA  - Inhal Toxicol
JT  - Inhalation toxicology
JID - 8910739
RN  - 0 (Aerosols)
RN  - 0 (Air Pollutants)
RN  - 0 (Gases)
SB  - IM
MH  - Aerosols
MH  - Air Pollutants/*analysis/toxicity
MH  - *Automobile Driving
MH  - Equipment Design
MH  - Gases/*analysis
MH  - Inhalation Exposure/*analysis
MH  - Motor Vehicles
MH  - New York
MH  - Particle Size
MH  - Toxicity Tests/*instrumentation/methods
MH  - Weather
EDAT- 2004/06/19 05:00
MHDA- 2004/10/07 09:00
CRDT- 2004/06/19 05:00
PHST- 2004/06/19 05:00 [pubmed]
PHST- 2004/10/07 09:00 [medline]
PHST- 2004/06/19 05:00 [entrez]
AID - CBQCEVB2TRTLYP6G [pii]
AID - 10.1080/08958370490443024 [doi]
PST - ppublish
SO  - Inhal Toxicol. 2004;16 Suppl 1:31-9. doi: 10.1080/08958370490443024.