Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6340517 | Atmospheric Environment | 2013 | 9 Pages |
Abstract
We carried out time-resolved experiments using a proton-transfer-reaction mass spectrometer and a chassis dynamometer to characterize nitromethane emission from automotive exhaust. We performed experiments under both cold-start and hot-start conditions, and determined the dependence of nitromethane emission on vehicle velocity and acceleration/deceleration as well as the effect of various types of exhaust-gas treatment system. We found that nitromethane emission was much lower from a gasoline car than from diesel trucks, probably due to the reduction function of the three-way catalyst of the gasoline car. Diesel trucks without a NOx reduction catalyst using hydrocarbons produced high emissions of nitromethane, with emission factors generally increasing with increasing acceleration at low vehicle velocities.
Keywords
PAHNMVOCVOCDEPPTR-MSGC/FIDGC/MSNOxInternational Agency for Research on CancerIARC یا International Agency for Research on CancerNitrogen oxidesVolatile organic compounddiesel exhaust particleparticulate matterThree-way catalystgas chromatography–mass spectrometryProton-transfer-reaction mass spectrometryNitro-PAHNitromethanePolycyclic aromatic hydrocarbonOxidation catalystgas chromatography with flame ionization detection
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Atmospheric Science
Authors
Kanako Sekimoto, Satoshi Inomata, Hiroshi Tanimoto, Akihiro Fushimi, Yuji Fujitani, Kei Sato, Hiroyuki Yamada,