Nitrogen dioxide exposure studies. Volume 4. Personal exposure to nitrogen dioxide in the Los Angeles basin. Topical report, 1986-1992

Technical Report · Sun Nov 01 04:00:00 EST 1992

OSTI ID:6530130

Spengler, J D; Ryan, P B; Schwab, M; Colome, S D; Wilson, A L

To determine the factors influencing personal exposures to NO2, a large-scale study on personal exposures to NO2 was conducted in the Los Angeles area during May 1987 to May 1988. A random representative sample of approximately 700 individuals from 500 households in the Los Angeles Basin was selected for the project. The Study was specifically designed to assess: (1) relationships between activity patterns and exposures; (2) the ability of indoor and outdoor concentration measurements to predict personal exposures; (3) the ability of categorical variables to describe personal exposures; and (4) consistency of findings with the Boston NO2 personal exposure study. Homes and personal characteristics questionnaies, along with time-activity methods, were gathered. The study showed, as in previous studies, in-home concentrations are strong predictors of personal exposures. Outdoor concentrations were found to be strong predictors of personal exposures as well. The time/activity measures were weak predictors of exposure, perhaps because the existing diary instruments do not capture the variation in activity patterns that influence exposures. The study confirms the strength of surrogate measures such as location and range type for predicting indoor concentrations.

• Research Organization: Harvard Univ., Boston, MA (United States). School of Public Health
• OSTI ID: 6530130
• Report Number(s): PB-93-170868/XAB; CNN: GRI-5082-251-0739
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320107* -- Energy Conservation
Consumption
& Utilization-- Building Systems-- (1987-)
AIR POLLUTION
AIR POLLUTION MONITORING
AIR QUALITY
BIOLOGY
BUILDINGS
CALIFORNIA
CAPTURE
CHALCOGENIDES
CHEMICAL ANALYSIS
COMPARATIVE EVALUATIONS
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NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
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NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
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PUBLIC HEALTH
QUALITY ASSURANCE
RESEARCH PROGRAMS
RESIDENTIAL BUILDINGS
STATISTICAL DATA
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USA