Regional Air Pollution Study:Sulfur Compounds and Particulate Size Distribution Inventory.

摘要

In conjunction with the Regional Air Pollution Study being conducted in the St. Louis Air Quality Control Region (AQCR), a methodology for estimating the amount of sulfur trioxide (SO3) emitted by combustion sources was developed. It is based on SO2/SO3ratios determined both experimentally and from literature surveys. The most likely value appears to be 1.85% of the SO2emissions. On this basis,about 22,000tons of SO3are emitted yearly from combustion sources. A fine particle size inventory for the area was also developed. The inventory gives a breakdown of particulate emissions in the range of 7to .01microns,based on production rates and collection efficiencies for point sources in the St. Louis AQCR. The information on the SO2/SO3ratios and the particle size breakdown is stored in the RAPS Data Handling System.