Feststellung von Immissionseinwirkungen im Jahr 2005

Wien

2006

S. 17-18

3 Abb.

Artikel aus einer ZeitschriftUnselbständiges Werk

200132040

In addition to Bioindicator Grid samples, some 3818 needle and leaf samples were analysed in 2005 for accumulated pollutant concentrations. These samples were sent in by private persons and forest authorities for expert opinions in the course of legal actions in accordance with the Mining Act, the Waste Management Act and the Industrial Law for Environmental Impact Assessment (UVP) as well as statements concerning environmental impact (UVE). 13,5 % (n=3558) of the already analysed spruce samples showed exceedances of the limit values for sulphur, 7,5 % (n=710) of the limit values for fluorine and 13,4 % (n=1033) of the limit values for chlorine. Chlorine and chlorine compounds have become Ńimportantń air pollutants in recent years. Due to the fact that many industrial enterprises use low cost alternative fuels ("plastic combustion") the authorities prescribe foliar analyses which reveal sometimes heavy chlorine and hydrogen chloride loads. Besides being an atmospheric pollutant chlorine compounds are contained also in road de-icing salts. High concentrations of chloride were found in the north of Austria where due to the opening of the iron curtain with increasing traffic large quantities of de-icing salts are used to keep roads trafficable also during winter time