Use of the lidar technique in air quality management in an urban area

摘要

Abstract: The Greek Ministry of Environment (Department of Air Quality) launched in 1996 a number of projects aiming at the upgrading of its environmental services and authorities. One of these projects was about a LIDAR mobile station. The main scope of this project was the feasibility study concerning the application of a DIAL system in Athens geographical area suitable for monitoring the air pollution at places where corresponding environmental conventional instrumentation cannot be installed. The present paper highlights the major achievements of the above-mentioned LIDAR project. During the project period the available commercial LIDARs were evaluated and investigated about their capability to measure the required air pollutants by the Ministry. The project also dealt with the accuracy in the pollutant concentration and spatial resolution. The locations within Athens basin where the LIDAR can operate were spotted and a specific techno- economical study was carried out about the data transmission from the mobile station to the base. The project gave its recommendations (guidelines) about the suitable type of LIDAR to be used in Athens. It was also shown the possible scenarios of the financial management of the system, the purchase and annual maintenance costs of the system was estimated. !14