Retrospective Geospatial Modeling of PM10 Exposures from Open Burning at Joint Base Balad, Iraq
Date of Award
Master of Science in Industrial Hygiene
Department of Systems Engineering and Management
Dirk P. Yamamoto, PhD.
Predicting, determining, and linking theater-related source-specific exposures to health effects has proven difficult. The purpose of this research is to delineate retrospective exposure zones using spatially interpolated particulate air sampling point data from Joint Base Balad, create burn pit exposure isopleths from dispersion model outputs, and merge into a combined exposure model in GIS. Interpolated monitoring results and dispersion modeled results were combined to compare modeled exposures across base. Burn pit contribution to total PM10 was also modeled. The combined dispersion and interpolation map showed elevated concentrations within a 1 kilometer buffer of the burn pit. Buildings within this area were identified by geoprocessing. The east side of the base receives greater burn pit-specific PM10, compared to the west side. The west side showed high ambient PM10 from monitoring results, but it is unclear whether this was due to spatial or temporal effects. High temporal variability highlights the need for temporally representative sampling across the geographical area throughout the year. It was shown that source-specific individual exposure can be estimated with dispersion model isopleth maps and individual time-activity patterns. All modeling performed can all be refined with improved estimates of emission rates.
DTIC Accession Number
Rinker, John P., "Retrospective Geospatial Modeling of PM10 Exposures from Open Burning at Joint Base Balad, Iraq" (2011). Theses and Dissertations. 1544.