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Herbicides, detergents, phenols, solvents and polynuclear aromatic hydrocarbons belong to organic impurities most often encountered in waters. Polynuclear aromatic hydrocarbons are specially dangerous because they are accumulated in organisms and some of them reveal the following effects: cancerigenic, cocancerigenic, mutagenic and teratogenic. Unfortunately, the standards for drinking waters, valid...
The paper presents the two years' activity of the Association the founders of which made it their aim to Improve the natural environment in Poland. To the most important initiatives belong, among others, publishing of a magazine, the Swedish-Polish seminary in Norttaije, co-operation of the twin-towns, a share in the Vistula (WISŁA) project, courses on environmental protection, taking part in the...
The conifers prevail in 90 per cent in the forests of the Katowice province. These trees characterized by a low resistance to industrial pollution are susceptible to noxious insects. It is a heritage of the policy of the Prussian authorities from the period of an early capitalism when the forests were revived by planting new trees but only pines and spruces. The enormous pollution of the atmosphere...
The castle dates from the 14th century and it was built as a defensive edifice by Andrzej Toporczyk who after some time took the name of Tenczyński — after the name of the place. For many years the castle was a source of power of the family who played an important part in the politics of old Poland. In the 16th century the invasion of the Swedes destroyed the Tenczyn castle and finished its former...
Hydrologic characteristic data of upper drainage basin of the Oder are presented as well as the importance of this basin for Czechoslovakia. The water-sewage management in the Czechoslovakian region, in which a part of the Oder basin lies, is described. In the prevailing part of its run across Czechoslovakia this river serves as a receiver of the sewage. A considerable concentration of the extractive...
Up to the seventies the biogas has been rarely utilized. It started to be utilized on a large scale as a source of energy after 1973 when the prices of fuels and energy went rapidly up. In the paper the USA experience in this branch, which has been gained up till now, is presented, the following problems are discussed: the choice of a proper technology tor the combustion of biogas, I.C. engines operated...
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