Pollutant emissions into the atmosphere are measured at three automatic monitoring stations located outside the Production Plant in Płock. The analysis of measuring results in 2008 shows that emissions of all measured substances remained within the environmental standards determined in the Regulation of the Polish Minister of Environment of 3 March 2008 (Polish Journal of Laws Dz. U. No. 47, item 281).
At most stations, average annual SO2 and NO2 concentrations in 2008 were lower than in 2007 while benzene and hydrogen sulphide concentrations remained at a similar level over the last two years. In 2008, we reported a 30.6% drop in COD (chemical oxygen demand) load discharged into the Vistula, which was due to a 2.9% reduction in sewage discharge and the implementation of a new reference methodology of COD marking, which enabled more precise identification of the parameter. Reduced volume of sewage discharge was linked with lower inflow to the storm sewage treatment plant, which in turn was due to lower precipitation in 2008 compared to the year before.
Such environmental benefits translated into economic effects such as, among other things, reduced sewage discharge costs.
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