Relationship Between Specific Non-Methane Hydrocarbons and Ozone in Ambient Air and Their Role in Transportation Control Strategies

摘要

Specific non-methane hydrocarbon concentrations in ambient air have been measured in two urban regions: New York City and the Albany/Troy/Schenectady TriCity area. In each region two elevated sites were also used. This report contains quantitative data on twenty compounds; a total of forty three hydrocarbons were identified via gas chromatography. Sampling periods and schedules are given. Information on ozone concentrations was obtained simultaneously or gathered from cooperating agencies. A series of studies were conducted to investigate stability of ambient hydrocarbons in plastic bags. Some of the ambient sampling results were coupled with emission inventory information to generate a hydrocarbon source reconciliation to relate automotive and stationary source emissions to ambient air quality. Models that relate hydrocarbons and nitric oxide to ozone formation were reviewed in order to evaluate how best to utilize the ambient air quality information obtained above and how to assess its impact on transportation control strategies.