The trend of continuous increase for mobility requirements results in a progressive increase in the use of vehicles of all modes of transport, which contributes to a significant increase in noise levels, especially in urban areas. The most significant noise in urban areas is traffic noise, where road traffic contributes the most. This paper reviews the treatment of road traffic noise in the European Union with a focus on Directive 2002/49 / EC. The paper presents the basics of the mechanisms of the institutional and management framework in the field of road traffic noise monitoring in EU countries. Also, the results of road traffic noise monitoring in EU countries, indicators of population exposure to road traffic noise, as well as indicators of the impact of road traffic noise on the health of the population, were presented.
This paper refers to an experiment of SO2 absorption to the particles of sorbent CaCO3, the mass of sample was 100 g with fractional composition of 500-700μm and 1100-1300μm. During the experiment the temperature varied from 200 and 400°C. The aim of this experiment described in this paper, is to examine the influence of lower reaction temperature, the size of sorbent particles and reaction time to the degree of SO2 absorption and determining the degree of CaCO3 sorbent utilization. The results show that at the reaction temperature of approximately 200°C and average diameter of sorbent particles ≈600μm, the absorption degree of SO2 absorption to the particles of sorbent is between 42-66%. Reaching temperature of 400°C and with the same fractional composition of the sorbent, ≈600μm, the absorption degree of SO2 is slightly higher and it is somewhere around 45-78%. With greater diameters sorbent particle of ≈1200μm, absorption degree of SO2 is a bit lower. The determined degree of utilized sorbent CaCO3 is considerably lower and it reaches up to 6.87%. The acquired results indicate that besides CaO, Ca(OH)2 and CaMg(CO3)2 it is reasonable to inject the CaCO3 sorbent, in the areas of lower temperatures i.e. in the flue channel of the thermal power plant.
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