US EPA

5427247 

Technical Report 

Residential Exposure from Inhalation of Air Emissions from the M856 5. 56-mm Tracer Cartridge 

Chang, H; Coakley, S 

2001 

GRA and I 

e 0 

This assessment evaluated the potential for human health effects to offsite residents breathing air emissions following use of the 5.56mm Tracer Cartridge. This document present the evaluation of the potential for adverse human health effects to the offsite residents breathing air emissions following the use of military firing ranges during training exercises. Study results showed no potential for health risks to the hypothetical resident from inhalation of air emissions from the 5.56mm Cartridge. To conduct this study, air emissions from the 1.56mm Cartridge were collected in a test chamber (at Aberdeen Test Center, Aberdeen, MD). This information was then used in an air dispersion model to determine ambient air concentrations at a location downwind from the site where the item was activated. Modeled air concentrations were combined with exposure information to estimate the amount of substances the hypothetical resident breathes. This intake was combined with the substances health information, to determine if there is a potential for health risks from inhalation of these substances. The health risk included both long-term and short term exposures to the modeled substance concentrations. Study results showed no potential for health risks from inhalation of air emissions from the 5.56 Tracer Cartridge.