Yik Sze Lau

TL;DR: The results can be used as a reference by policy makers to formulate emission control strategies and as a dataset for other modeling studies.

TL;DR: In this paper, a detailed investigation of diesel vehicle emissions utilizing chassis dynamometer testing is presented, where real-time emission concentrations of nitrogen oxides (NOx), total hydrocarbons (THC), carbon monoxide (CO) and carbon dioxide (CO2), and the mass of particulate matter (PM) collected on filters are measured and used to calculate the vehicle emission factors (EFs) under various driving conditions.

TL;DR: The results of the stepwise regression analysis suggested that n-alkane and alkenoic acid were major contributors to the increase in lactate dehydrogenase (LDH) levels in the fresh samples, while polycyclic aromatic hydrocarbons (PAHs) and monocarboxylic acid were the main factors responsible for such increase in the aged samples as mentioned in this paper .

TL;DR: In this article , the chemical properties of fresh and aged aerosol emitted during controlled vehicular exhaust emissions were characterized in the analysis and the findings demonstrate that vehicle emission standards for pollution in relation to the change of particulate matter chemical compositions and secondary organic aerosol (SOA) formation in the urban atmosphere.

TL;DR: In this article, a detailed investigation of diesel vehicles emissions utilizing chassis dynamometer test in Hong Kong is presented, including nitrogen oxides (NOx), total hydrocarbon (THC) and carbon monoxide (CO), which are chosen to be the targets of this study.