Head of Air Quality Management Department of Estonian Environmental Research Centre (ESTONIA)
Erik Teinemaa have been active on the field of air quality measurements and modelling more than 15 years. The modelling has become very important tool in assessment of the environmental status. Presentation and analysis of the modelled concentrations of air pollutants is done by GIS tools.
Topic name: Web based Air quality Modelling Tool
There are several methods to assess air quality. The measurements of air pollutants are usually rather complex and expensive. Especially for hazardous pollutants like polyaromatic hydrocarbons or heavy metals. Modelling tools are used widely in such cases where measurements are not possible or reasonable. Modelling tools allows to assess spatial distribution of the pollutant levels and calculate concentration levels both retrospectively and predictably. Exposure of the population to air pollutants is assessed using air quality modelling and GIS tools. Environmental impact assessments and issuing pollution permits is done by using modelling tools. Necessary input for modelling is emission data, meteorology and topography in suitable format. There are very different dispersion models available with each having their advantages and disadvantages. In order to harmonize modelling used for such an application the web-based modelling tool was developed. The tool is using dispersion models and suitable input data available in Estonian air quality management system which is based on Airviro software. The models and emission databases are used over web service accessible through web portal. The web-based modelling tool allows regular users to run dispersion models and access emission data (pollution sources) using simplified user interface and regular web browser.