Measuring On-Road Vehicle Emissions with Multiple Instruments Including Remote Sensing

Guidance note about on - road vehicle emissions remote sensing

On-road Remote Sensing of Vehicle Emissions in Monterrey, N.l. Mexico

Mexico to monitor remotely the carbon monoxide (CO), hydrocarbons (HC) and nitric oxide (NO) emissions of the local vehicle fleet. In four days of monitoring at four different locations within the city, 26,534 vehicles passed the sensor. In all more than 24,000 valid measurements were obtained for CO, more than 23,000 for HC and more than 16,000 for NO. Mean values for each species were 1.69% C...

A tunable diode laser system for the remote sensing of on-road vehicle emissions

A tunable infrared laser differential absorption spectrometer (TILDAS) has been developed to measure airpollutant emission from on-road motor vehicles. The system uses a monostatic source–detector platform and a retroreflector. It has been shown to be able to measure the emissions from individual vehicles at highway speeds. Excellent detection sensitivity is obtained with measurement precision ...

On-Road Emissions in Asia Measured by Remote Sensing

On-road emissions are precisely the emissions which are impacting the air quality and which need to be controlled if air quality improvements are desired. Remote sensing measures mass emissions of CO, HC, NO and smoke per kg (or per L) of fuel burned. On-road emissions are not certification emissions for new vehicles, although new vehicles measured on-road most often provide remote sensing read...

Simultaneous Measurement of On-Road Vehicle Emissions and Traffic Flow Using Remote Sensing and an Area-Wide Detector

The goal of this project, sponsored by the Transportation Research Board and conducted jointly by NC State University, the National Institute for Statistical Sciences, and the Division of Air Quality of the NC Dept. of Environmental and Natural Resources, is to demonstrate a methodology for development of empirical emissions models based upon observable traffic variables. On-road emissions of c...