EMI Status
Completed and ongoing EMI evaluations
- Developed and evaluated residential air exchange rate models for EMI (Reference 1)
- Ongoing evaluation of residential indoor air quality model for PM2.5 (see EMI presentation)
- Ongoing development and evaluation of GPS-based microenvironment tracker (see Microenvironment Tracker (MicroTrac) for EMI)
Plans for EMI development
- Based on the specific hypotheses of the health studies, the EMI will be expanded for additional air pollutants.
- To support a near roadway asthmatic health study in Detroit, Michigan, the EMI will be expanded for the nitrous oxides, carbon monoxide, and black carbon.
Plans for EMI evaluation using questionnaires and measurements from exposure field studies:
Research Triangle Park (RTP) Particulate Matter Panel Study
- Same geographical location as RTP diabetics and asthmatics health studies planned for EMI application
- Criteria air pollutants, air exchange rates
- Same geographical location as near roadway asthmatic children health study (NEXUS) planned for EMI application
- Criteria air pollutants, air exchange rates
- Criteria air pollutants, air exchange rates
- Criteria and toxic air pollutants, air exchange rates
Plans for EMI applications with cohort health studies:
Cardiovascular study (Type 2 diabetics), Chapel Hill, North Carolina
- Collaborators: EPA’s National Health and Environmental Effects Research Laboratory
- Planned applications:
- Apply EMI to compare model-predicted and measured PM exposures, and develop exposure metrics for health study
- Couple EMI with previously developed epidemiological model to compare model-predicted exposures and health outcomes
- Collaborators: University of Michigan
- Results: Helped to design questionnaires based on needs of EMI, and incorporated personal GPS data loggers into study design
- Planned applications:
- Apply EMI to compare model-predicted and measured air pollutant exposures, and develop exposure metrics for health study
- Couple EMI with air quality model
- Couple EMI with epidemiological model to compare model-predicted exposures and health outcomes
- Collaborators: EPA’s National Health and Environmental Effects Research Laboratory
- Results: used EMI to modify questionnaires, plan to couple EMI with lung dosimetry model
- Planned applications:
- Apply EMI to compare model-predicted and measured PM and ozone exposures, and develop exposure metrics for health study
- Couple EMI with previously developed epidemiological model to compare model-predicted exposures and health outcomes
- Collaborators: The National Children's Study (NCS) consortium
- Planned applications:
- Apply EMI for air pollutants related to asthma hypotheses and possibly others
- Further refine NCS questionnaires to support EMI application and reduce participant burden
- Use EMI to help plan NCS pilot studies