The emission ratio of a modern fleet with a higher percentage of diesel vehicles was measured and the impact of the new emission control technologies on nitrous acid (HONO) were evaluated. The emission ratio measured was approximately 50% higher than the most commonly used 0.8%. Positive correlation between HONO and black carbon (BC) suggests that HONO and BC were emitted together, while the lack of correlation between HONO/NOxand BC, suggests that the BC-mediated conversion of NO2to HONO in the dark was insignificant immediately after emission. Modeling studies handle the BC-mediated HONO formation in the atmospheric chemistry module rather than make correction at the emission source.
|Number of pages||9|
|Journal||Journal of the Air and Waste Management Association|
|Publication status||Published - 3 Jul 2017|
ASJC Scopus subject areas
- Waste Management and Disposal
- Management, Monitoring, Policy and Law