PMID- 8241782
OWN - NLM
STAT- MEDLINE
DCOM- 19931230
LR  - 20121115
IS  - 1053-4245 (Print)
IS  - 1053-4245 (Linking)
VI  - 3
IP  - 2
DP  - 1993 Apr-Jun
TI  - Particle Total Exposure Assessment Methodology (PTEAM) 1990 study: method 
      performance and data quality for personal, indoor, and outdoor monitoring.
PG  - 203-26
AB  - The Particle Total Exposure Assessment Methodology (PTEAM) study provided the 
      opportunity to test methodologies for measuring personal and microenvironmental 
      PM10 and PM2.5 concentrations in a full-scale probability-based sample of 178 
      persons and homes in Riverside, California during the fall of 1990. The purpose 
      of the study was to estimate frequency distributions of exposure to PM10, PM2.5, 
      and selected elements in an urban population. Quality control samples and 
      analyses were used to evaluate method performance. These included collocated 
      sample collection, field and lab blank filters, sampler and balance field audits, 
      and intra- and interlaboratory replicate elemental analyses. A portion of the 
      study was also designed to include side-by-side operation of the personal and 
      microenvironmental samplers with reference method (high-volume and dichotomous) 
      samplers to provide an evaluation of method comparability. Over 95% of the 
      approximately 2,900 scheduled samples were collected and analyzed, with very few 
      losses due to equipment failure. The method limit of detection for the personal 
      and microenvironmental monitor PM10 sampling was 8 micrograms/m3. Mean relative 
      standard deviations (RSDs) of 2% to 8% were obtained for collocated personal and 
      microenvironmental samples. Sampler flow rates were within the +/- 10% accuracy 
      criterion during two field audits. Balances operated in a specially designed 
      mobile laboratory were within specified tolerances for precision (+/- 4 
      micrograms) and accuracy (+/- 50 micrograms). Elemental analysis accuracy was 
      measured with standard reference materials with biases ranging from 2% to 7%. 
      Measurement precision for most elements ranged from 2.5% to 25% mean RSD. 
      Personal and microenvironmental samplers gave median PM10 concentrations that 
      were approximately 9% higher than the dichotomous sampler and 16% higher than the 
      high-volume sampler across 96 monitoring periods at a fixed outdoor location.
FAU - Thomas, K W
AU  - Thomas KW
AD  - Research Triangle Institute, Research Triangle Park, NC 27709.
FAU - Pellizzari, E D
AU  - Pellizzari ED
FAU - Clayton, C A
AU  - Clayton CA
FAU - Whitaker, D A
AU  - Whitaker DA
FAU - Shores, R C
AU  - Shores RC
FAU - Spengler, J
AU  - Spengler J
FAU - Ozkaynak, H
AU  - Ozkaynak H
FAU - Froehlich, S E
AU  - Froehlich SE
FAU - Wallace, L A
AU  - Wallace LA
LA  - eng
PT  - Journal Article
PL  - England
TA  - J Expo Anal Environ Epidemiol
JT  - Journal of exposure analysis and environmental epidemiology
JID - 9111438
SB  - IM
MH  - Air Pollution/*analysis
MH  - Air Pollution, Indoor/*analysis
MH  - California
MH  - Environmental Monitoring/*methods/standards
MH  - Epidemiologic Methods
MH  - Epidemiological Monitoring
MH  - Filtration
MH  - Humans
MH  - Quality Control
MH  - Research Design
MH  - Specimen Handling
EDAT- 1993/04/01 00:00
MHDA- 1993/04/01 00:01
CRDT- 1993/04/01 00:00
PHST- 1993/04/01 00:00 [pubmed]
PHST- 1993/04/01 00:01 [medline]
PHST- 1993/04/01 00:00 [entrez]
PST - ppublish
SO  - J Expo Anal Environ Epidemiol. 1993 Apr-Jun;3(2):203-26.