How to integrate the solid state electrochemistry sensor and the wireless sensor network to realize the vehicle exhaust on-line monitoring was discussed.

The main volatile organic compounds in Tianjin ambient air,gasoline,diesel,and vehicle exhaust were qualitatively and quantitatively studied with GC/MS,and the ingredients and their concentration were compared.

The paper puts forward some suggestions and measure for controling and reducing vehicle exhaust.

This paper attempts to propose the methodology to the EIA for transportation planning by analyzing the existing transportation planning,vehicle emission,and traffic noise models.

Based on Gaussian dispersion theory, a vehicle emission dispersion model was developed in accordance with characteristics of linear pollution source dispersion, which can be applied to open road and upper road of the trestle.

Motor vehicle emission pollution, especially particulate matter smaller size is harm to human body.

In this article, we have studied air pollutants in the exhaust gas of vehicle using laser mass spectromety, which is characteristic of high sensitivity, high selectivity, multi component and on line real time analysis.

In the whole paper we will describe an on-road vehicle emissions monitor fabricated recently in our laboratory employing tuneable diode laser absorption spectroscopy (TDLAS) and ultraviolet differential optical absorption spectroscopy (DOAS) techniques.

<Abstrcat> In the whole paper we describe an on-road vehicle emissions monitor fabricated recently in our laboratory employing tunable diode laser absorption spectroscopy (TDLAS) and ultraviolet differential optical absorption spectroscopy (DOAS) techniques.

For an underground urban freeway is in an enclosed space,pollution from vehicle emissions can be collectively filtered and disposed with high-technical method.