156354 Coarse particulate matter and lung function among neighbors of industrial hog operations

Tuesday, November 6, 2007: 3:15 PM

Kimberly B. Morland, PhD , Dept of Community and Preventive Medicine, Mount Sinai School of Medicine, New York, NY
John Creason, PhD , Epidemiology and Biomarkers Branch, United States Environmental Protection Agency, Chapel Hill, NC
Steve Wing, PhD , School of Public Health, Department of Epidemiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC
The influence of PM10 and PM2.5 on lung function has been well established whereas the association between pulmonary health and coarse fraction has been mixed. Sources of coarse particles have been primarily studied as cockroach allergen or roadside dust. This study aims to investigate the association between lung function and coarse particulate matter from agriculture farming practices. A repeated measure designed study was conducted in Eastern North Carolina where 52 participants located in twelve different neighborhoods were followed for two week, providing pulmonary measurements (one second forced expiratory volume, FEV1 and Peak Expiratory Flow, PEF) twice daily during September 2003 August 2005. Dicot filter samplers were used to collect 12 hour coarse and fine PM. The majority of participants were African American (79%), female (64%) and 40-69 years of age (69.3%). Mean FEV1 was 2.08 (standard deviation = 0.79) and PEF = 399.18 (113.77) and varied across study site (FEV1range 1.41- 2.96 liter/minute; PEFrange 268.32 559.13). Mean concentration of coarse particulate matter also varied by site (3.29 /m310.49 /m3). Using mixed models to evaluate within-person and within-community relationships between coarse particles and FEV1/PEF, we will consider exposure lags and potentially modifying effects of wind speed, temperature and humidity on coarse particulate matter and endotoxin on prevalent respiratory disease.

Learning Objectives:
1. Participants will learn the about the relationship between exposure to coarse particles and lung function. 2. Participants will learn how air pollution monitoring is conducted in a community based participatory research project 3. Participants will learn about the environmental impact of confined hog feed operations for the surrounding community.

Presenting author's disclosure statement:

Any relevant financial relationships? No
Any institutionally-contracted trials related to this submission?

I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.