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Relationship Between Indoor, Outdoor and Personal Air (RIOPA)

EPA Grant Number: R824834C006
Subproject: this is subproject number 006 , established and managed by the Center Director under grant R824834
(EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).
Center: Mickey Leland National Urban Air Toxics Research Center (NUATRC)
Center Director: Beskid, Craig
Title: Relationship Between Indoor, Outdoor and Personal Air (RIOPA)
Investigators: Weisel, Clifford P. , Colome, Steven D. , Morandi, Maria T. , Spektor, Dalia , Stock, Tom , Turpin, Barbara , Zhang, Junfeng
Institution: Environmental and Occupational Health Sciences Institute , University of Texas at Houston
EPA Project Officer: Katz, Stacey
Project Period: January 1, 2001 through May 31, 2002
RFA: Mickey Leland National Urban Air Toxics Research Center (NUATRC) (1997)
Research Category: Congressionally Mandated Center , Urban Air Toxics , Targeted Research

Description:

Objective:

The Relationship between Indoor, Outdoor, and Personal Air (RIOPA) study will test the hypothesis that personal exposure to air toxics is influenced by outdoor sources of these air toxics. Two hypotheses to be tested are:

· A measurable and significant portion of the indoor air concentrations, personal exposures, and breath concentrations of volatile organic compounds (VOCs), aldehydes, and respirable particulate matter (PM2.5) are contributed by outdoor sources; and

· Residential air exchange rates (AER) are a major determinant of the influence of outdoor air concentration on indoor air and personal exposure.

Approach:

This project was initiated by the Center in December 1997, under a previous EPA grant (Grant No. R824834C006), and it will continue under this follow-on grant. This study includes an experiment that involves 100 homes and 150 individuals (100 adults and 50 children) in each of the three urban centers with different air pollution source profiles: Los Angeles, CA, dominated by mobile sources; Houston, TX, dominated by industrial point sources; and Elizabeth, NJ, with a mixture of mobile and point sources. The study will measure indoor and outdoor air concentrations of VOCs, aldehydes, PM2.5, and AER, as well as personal exposure in adults and children in a set of two 48-hour sampling periods in the three distinct urban areas.

Expected Results:

Following this experiment, we expect to be able to:

· Estimate the fraction that outdoor sources contribute to indoor and personal air concentrations in three distinct urban centers; and

· Estimate the exposures to populations living in the three urban centers from outdoor toxic air emissions.

Publications and Presentations:

Publications have been submitted on this subproject: View all 22 publications for this subproject | View all 122 publications for this center

Journal Articles:

Journal Articles have been submitted on this subproject: View all 2 journal articles for this subproject | View all 46 journal articles for this center

Supplemental Keywords:

air pollution, urban, exposure, volatile organic compounds, VOCs, particulate matter, PM2.5, indoor air, outdoor air, children, monitoring. , POLLUTANTS/TOXICS, ENVIRONMENTAL MANAGEMENT, Air, Scientific Discipline, Health, RFA, PHYSICAL ASPECTS, Risk Assessment, indoor air, Risk Assessments, Health Risk Assessment, Physical Processes, Air Pollution Effects, air toxics, Chemicals, Biochemistry, particulate matter, Air Pollution, Environmental Monitoring, exposure assessment, airborne urban contaminants, cardiovascular disease, health effects, indoor air quality, Volatile Organic Compounds (VOCs), urban air, lung inflamation, residential air exchange rates, air quality, sensitive subgroups, human health risk, aldehyde, air pollutants, human health effects, urban air quality, metals, aldehydes, exposure, urban air pollution, human health, biomarker, human exposure, mobile sources

Progress and Final Reports:
Final Report

Main Center Abstract and Reports:
R824834 Mickey Leland National Urban Air Toxics Research Center (NUATRC)

Subprojects under this Center: (EPA does not fund or establish subprojects; EPA awards and manages the overall grant for this center).
R824834C001 Air Toxics Exposures Among Teenagers in New York City and Los Angeles - A Columbia-Harvard Study (TEACH)
R824834C002 Cardiopulmonary Response to Particulate Exposure
R824834C003 VOC Exposure in an Industry Impacted Community
R824834C004 A Study of Personal Exposure to Air Toxics Among a Subset of the Residential U.S. Population (VOC Project)
R824834C005 Methods Development Project for a Study of Personal Exposures to Toxic Air Pollutants
R824834C006 Relationship Between Indoor, Outdoor and Personal Air (RIOPA)
R824834C007 Development of the "Leland Legacy" Air Sampling Pump
R824834C008 Source Apportionment of Indoor Polycyclic Aromatic Hydrocarbons (PAHs) in Urban Residences
R824834C009 Development of a Personal Cascade Impactor Sampler (PCIS)
R824834C010 Testing the Metals Hypothesis in Spokane
R828678C001 Air Toxics Exposures Among Teenagers in New York City and Los Angeles—A Columbia-Harvard Study (TEACH)
R828678C002 Cardiopulmonary Effects of Metal-Containing Particulate Exposure
R828678C003 VOC Exposure in an Industry Impacted Community
R828678C004 A Study of Personal Exposure to Air Toxics Among a Subset of the Residential U.S. Population (VOC Project)
R828678C005 Oxygenated Urban Air Toxics and Asthma Variability in Middle School Children: A Panel Study (ATAC–Air Toxics and Asthma in Children)
R828678C006 Relationship between Indoor, Outdoor and Personal Air (RIOPA). Part II: Analyses of Concentrations of Particulate Matter Species
R828678C007 Development of the “Leland Legacy” Air Sampling Pump
R828678C008 Source Apportionment of Indoor PAHs in Urban Residences 98-03B
R828678C009 Development of a Personal Cascade Impactor Sampler (PCIS)
R828678C010 Testing the Metals Hypothesis in Spokane
R828678C011 A Pilot Geospatial Analysis of Exposure to Air Pollutants (with Special Attention to Air Toxics) and Hospital Admissions in Harris County, Texas
R828678C012 Impact of Exposure to Urban Air Toxics on Asthma Utilization for the Pediatric Medicaid Population in Dearborn, Michigan
R828678C013 Field Validation of the Sioutas Sampler and Leland Legacy Pump – Joint Project with EPA’s Environmental Technology Validation Program (ETV)
R828678C014 Performance Evaluation of the 3M Charcoal Vapor Monitor for Monitor Low Ambient Concentrations of VOCs
R828678C015 RIOPA Database Development
R828678C016 Contributions of Outdoor PM Sources to Indoor and Personal Exposures: Analysis of PM Species Concentrations” Focused on the PM Speciation and Apportioning of Sources
R828678C017 The Short and Long-Term Respiratory Effects of Exposure to PAHs from Traffic in a Cohort of Asthmatic Children

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The perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.

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Relationship Between Indoor, Outdoor and Personal Air (RIOPA)

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