Case study of environmental impact assessment of NO2 concertations emitted from line sources in Komárom, Hungary

Abstract

Air pollution after the industrial revolution and the population explosion has increased dramatically. However, air pollution is not a newer phenomenon it starts before the industrial revolution and has taken different forms when people on past used firewood for heating and cooking. Our bodies cannot adopt with contaminations increasing. One of the best solutions to meet the sustainable development goals is the application of Environmental Impact assessment approach (EIA). This study gave an assessment on air quality inside the city of Komárom, Hungary after operating the new bypass road No. 131 in 2015. The differences of air quality between the two years 2010 and 2015 before and after operating the bypass road were investigated during the application of EIA. The EIA study was done by using IMMI software which is a widespread noise and air pollution modelling software provided by the German Wölfel GmbH. Traffic network graphic elements, traffic data (numbers of cars and heavy trucks), emission factors for different pollutants and meteorological data (wind speed, wind direction, and stability categories) were prepared and imported to the software. The modeling was done depending on Gaussian dispersion approach. The average concentrations of NO2 were simulated for the whole area and for specific receptor points in case of different wind speed intervals, wind direction, and different stability categories. The obtained results from model showed only small differences in air quality between 2010 and 2015 due to the traffic motion in the bypass road No. 131 but it indicate the changes in traffic and environmental developments on air quality.