Estimation of Hazardous Air Pollutant Emissions from Municipal Sewer Systems

摘要

The paper gives an estimate of hazardous air pollutant (HAP) emissions fromsewers in a large U.S. city. (NOTE: Such emissions are usually omitted from both volatile organic compound and HAP emission inventories, perhaps from a lack of appreciation for the potential emissions impact and/or inadequate emissions estimation procedures.) An approach was developed and implemented that used EPA's National Pollutant Discharge Effluent System (NPDES) data as the basis for estimating HAP discharges to municipal sewers. The results showed that the sewer HAP emissions are likely to be equal to, or greater than, those from the city's wastewater treatment facilities.