Technical Basis for Developing Control Strategies for High Ambient Concentrations of Nitrogen Dioxide

摘要

The report presents information which may prove useful in designing control strategies to reduce high short-term and/or annual concentrations of nitrogen dioxide (NO2). Specific implications of findings of the design of control strategies are identified. The following topics are discussed: (1) nature and significance of manmade and natural sources of NOx; (2) mechanisms by which NO2 is formed in the atmosphere; (3) monitoring network design, data quality checks, and the extent of high NO2 concentrations observed in the U.S. from 1975-77; (4) the extent to which NO2 is transported from urban to suburban areas and over longer distances; (5) derived relationships between NO2, NO and organic pollutants; (6) procedures for examining monitoring data to estimate impacts of various source categories observed on high levels of NO2; and (7) modeling procedures for NO2 which are available.