Characterization of Emissions from the Simulated Open Burning of Scrap Tires

摘要

The report gives results of a small-scale combustion study, designed to collect, identify, and quantify products emitted during the simulated open burning of scrap tires. Fixed combustion gas, volatile and semi-volatile organic, particulate, and airborne metals data were collected u nder two burn conditions that varied by the size of tire material. Burn rates, varied by material size, were used to estimate potential emissions of identified products. Total estimated emissions of semi-volatile organics ranged from 10 to 50 g/kg of tire material burned. Monoaromatic and polyaromatic hydrocarbons were the predominant emission products identified. The presence of benzo(a)pyrene (BAP) in particulate extracts is of particular concern because it is a known carcinogen. The presence of zinc in gaseous particulate collection was also verified and quantified. Several trends were evaluated relating emission products to burn rates.