Grantee Research Project Results
2008 Progress Report: Measuring the Impact of Particulate Matter Reductions by Environmental Health Outcome Indicators
EPA Grant Number: R833627Title: Measuring the Impact of Particulate Matter Reductions by Environmental Health Outcome Indicators
Investigators: Johnson, Jean , Yawn, Barbara , Pratt, Greg
Institution: Minnesota Department of Health , Olmsted Medical Center , Minnesota Pollution Control Agency
Current Institution: Minnesota Department of Health , Minnesota Pollution Control Agency , Olmsted Medical Center
EPA Project Officer: Hahn, Intaek
Project Period: January 1, 2007 through December 1, 2011 (Extended to May 31, 2012)
Project Period Covered by this Report: January 1, 2008 through December 31,2008
Project Amount: $488,650
RFA: Development of Environmental Health Outcome Indicators (2006) RFA Text | Recipients Lists
Research Category: Air Quality and Air Toxics , Airborne Particulate Matter Health Effects , Air Toxics , Particulate Matter
Objective:
This project will develop and evaluate a set of quantifiable outcome-based indicators for monitoring the impacts of several local and national particulate matter emission reduction strategies in the Minneapolis-St. Paul area and Olmsted County utilizing available data on population distributions of ambient PM exposures, and population health over a ten year period (2000-2009). The project covers two study areas: the Twin Cities seven county metropolitan area and Olmsted County.Progress Summary:
Work in year one focused on collecting and evaluating the available particulate matter, ozone and health outcome data for years 2000-2006, for developing baseline indicator information. Data extracted from AQS were examined to assess interpretation issues such as formatting, missing and below detection data, spatial applicability, data collection frequency, and comparisons among measurement parameters. We found PM concentrations measured across FRM monitors in the Twin Cities Metro for 2000-2006 to be relatively homogenous. Emissions modeling data were explored to further refine and improve the exposure parameter, using the Comprehensive Air Quality Model with Extensions (CAMx) version 4.51. In summary, time series show that daily undulations of model data follow monitored data quite well. We have completed time series plots for all asthma hospitalizations, asthma emergency department visits, chronic lower respiratory disease hospitalizations, total respiratory hospitalizations, cardiovascular disease hospitalizations, cardiopulmonary disease mortality and all cause mortality in the two study areas. For Olmsted County residents, we counted all episodes of clusters of 3 or more outpatient visits for asthma that occurred within any 14 day period (ICD code 493.xx as the first diagnostic code) using data from the Rochester Epidemiology Project. Preliminary measures of association utilizing case crossover and Bayesian statistical methods were run.
Future Activities:
After further refinement of the models, relative risks will be estimated and compared using case-crossover and time series methods for associating daily PM exposures with acute health outcome indicators. We plan to compare the effect of using BAM continuous and FRM monitoring data versus available Bayesian modeled exposure data for the year 2005 on the relative risk estimate. Exposure to traffic will be tested as a variable for explaining observed health outcomes using average daily vehicle miles traveled (VMT) within each zip code. In Olmsted County, where health outcomes are more highly resolved spatially by data from the Rochester Epidemiology Project, traffic metrics will include traffic density (calculated by a kernel density approach) and maximum VMT within varying radii of the health outcome data point. State ambulance reporting data for health outcomes will be evaluated.Journal Articles:
No journal articles submitted with this report: View all 7 publications for this projectSupplemental Keywords:
air quality index, Bayesian, decision-making, elderly, EPA Region 5, epidemiology, health effects, hospital admissions, Midwest, Minnesota, particulates, traffic.Relevant Websites:
Progress and Final Reports:
Original AbstractThe 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.
Project Research Results
- Final Report
- 2011 Progress Report
- 2010 Progress Report
- 2009 Progress Report
- 2007 Progress Report
- Original Abstract
2 journal articles for this project