In area of zinc and lead exploration the most common elements of landscape are mine spoil-heaps and also dumps and settling tanks connected with zinc and lead metallurgy and ore flotation. They are located in the northern part of Katowice Province, on a line Piekary - Bytom - Bukowno - Olkusz and cover area of about 350 hectares. The individual settling tank in this area is between 15 and 40 hectares and considerably deforming landscape. A fine-grained dolomite is main material of tank sediments. The sediment contains maximally up Io 8.0% of Zn, 1.5% of Pb and Cd in content usually over 100 mg/kg. In spite of high salinity and high Zn, Pb and Cd content the settling tanks can be soil-less reclamated but the first stage of the reclamation should be trying to stop weathering and erosion processes. For the soil-less reclamation so

Considering the problem of fungal growth in living quarters, and especially after the buildings have been thermally insulated, learning more about mechanisms determining fungal growth in the conditions of day-today usage of such buildings seems to be a necessity. The research on indoor microclimate influence on fungal growth was carried out for too years in two pavilion type living quarters on a residential estate in built Wroclaw - Brochów. A microclimate fostering fungal growth was modelled in the pavilions. Samples of different building materials were exposed to and infected by fungi, and fungal growth was observed and analysed, with regard to the indoor environment. The paper presents the results of the first stage of the research (30 weeks).

The quality and quantity of crustacea groups the hydrochemistry of water and bottom sediments conditions, in the six selected anthropogenic hollow ponds in the central part of Silesian vojcvodship are presented taking into consideration. On strongly deformed area of the Silesian region one can find water reservoirs acljojning each other but differing the hydrochernical components. The nearness of spoil banks and slag damps affects hydrochemistry of water. In the inspected hollow ponds 20 taksons of Cladocera and 14 taksons of Copepoda were indentified. In the benthos zone these were determined 18 taksons of Cladocera and 14 taksons of Copepoda. In the pelagial zone 19 tak sons of Cladocera and I O tak sons of Copeopda. Were identified the number of taksons in the investigated hollow ponds does not depended on dissolved mineral mailer concentrations.

This paper presents the results of investigation on polycyclic aromatic hydrocarbons (PAHs) concentration in sludge coming from industrial wastewater treatment. The sludge was characterised according to chemical composition and heavy metal contents. Leaching of PAHs from sludge in dynamic conditions was also done with lizymetric columns used to simulate the real conditions during the storage of wastes. The changes or PAHs concentration in sludge stored under various lights conditions were also compared (daylight and darkness). A periodic extraction method with cyclohexane was used to select PAHs from samples. High performance liquid chromatography (HPLC) with fluorescent detector was used to analyse PAHs. Six PAHs listed by WHO were analysed (fluoranthene Fl, benzo(b)fluoranthene BbF, benzo(k)fluoranthene BkF, benzo(a)pyrene BaP, benzo(ghi)perylene BghiP and indeno(l ,2,3-cd)pyrene IP).

The aim of the study was to estimate the influence of metallurgical slag on heavy metal concentration in tree species. The research included pH-reaction and conductivity of slag samples, heavy metal content (Pb, Zn, Cd, Cu, Ni) in slag, needles and leaves samples. The waste material is covered by vegetation and fulfils a soil function. The vegetation is self-sending. The plant cover being a result of natural succession consists of weeds, grasses, perennials, bushes and trees. Dominant tree species are birches and willows as well as poplar and pine. In slag samples are observed the raised concentration of cadmium, lead and copper. The low content of zinc is surprising. In tree material observed excessive heavy metal concentration especially lead and cadmium. Their accumulation is undoubtedly depended on tree species, but in this case heavy metal content in plant samples is a result of their presence in slag material. The higher heavy metal content in slag results the higher concentration in needles and leaves (probes S1 and S2, T1 and T2). Exception to this rule is the birch - probe B,, but in this case the pH is crucial. In samples with pH over 6.8 heavy metal mobility, their solubility and phytoavailability decrease. pH below 7 results in higher trace element uptake in plants.