On-road Plume Chasing and Analysis System (OPCAS)

The On-road Plume Chasing and Analysis System (OPCAS) for on-road vehicle emission analyses and ambient air quality monitoring, the first mobile platform for on-site and real-time determination of on-road vehicle emission factors and high solution volatile organic compounds (VOC) measurement in Hong Kong, has been developed by the School of Energy and Environment (SEE) at City University of Hong Kong (CityU). By integrating the most advanced technologies including a condensation particle counter, a real-time aerosol monitor, an Aethalometer, CO2 and CO gas analysers, a VOC analyser, a global positioning system and a video camera in one platform, the OPCAS can be installed in any kind of automobile for the identification of high emitters, sources of roadside pollutants and the characterization of emission factors of different types of vehicles. It takes about only one to two minutes to analysing real-time plume samples from a target vehicle on the road and determining emission rates based on fuel carbon balance method for speciated VOC, particulates, nitrogen oxides and black carbon. Dr. Zhi NING, Assistant Professor of SEE, said the quick response time, high mobility and versatile applications of the system complement current measures of vehicle emission tests and ambient air quality monitoring.

The development of OPCAS is sponsored by the Hong Kong Bio- and Eco-Energy Industry Association and SEE's Ability R&D Energy Research Centre, supported by equipment from V&F (Austria) and Guyline (Asia) Ltd.

Enquiries : Dr. Zhi NING, Assistant Professor of the School of Energy and Environment, City University of Hong Kong
Email : zhining@cityu.edu.hk

OPCAS

OPCAS

OPCAS


(Published on 7 February 2012)