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The total content of chromium in natural waters does not generally exceed several mg/l. Thus, it is obvious that various forms of chromium will occur at the levels of tenths or hundredths of mg/l. Their determination requires the application of a sufficiently sensitive method, but an important role to play has its specificity in the case of chemical individuals or selectivity in regard to speciation...
This study aimed at determining Pb concentration in the blood of dogs raised in the environment polluted by copper industry. The dogs were divided into groups by age and height. The results show that there is a strong relationship between the age of dogs and Pb contents of canine blood. Besides, Pb content of small dogs was markedly higher than that of large dogs. Comparative studies by other authors...
The use of Thiobacillus ferrooxidans bacteria in the process of copper and iron leaching from chalcopyrite coming from Kotlina Klodzka was investigated. The influence of the mineral content in the leaching solution the pH value and refinement of chalcopyrite on the subsequent stages of leaching was established. The process was described by the 1st order reaction inhibited by one of the products (Cu2+)...
There is observed increasing pollution of environment by nitrosocompounds. Acute intoxication of animals by nitrosocompounds lead to necrosis and chronic exposure to neoplasm. We have little information on the influence of nitrosocompounds on metabolism of glycoconjugates (glycoproteins, glycolipids and proteoglycans) in animals. The aim of our work is evaluation the influence of exposure of rats...
The present review deals mainly with recent developments in research on the impact of PM10 (particulate matter below 10 mm) air pollution on the respiratory system and the possibly oxidant reactions that occur as a result of breathing these particles.
Studies were carried out to determine counts of TVC 20oC, TVC 37oC, TC, FC, FS and Clustridium perfringens in bottom sediments of the Czarna Hancza River, from about 1 cm layer, at 10 stations located in Suwalki region (stations 1 and 2), in the villages Sobolewo (stations 3 and 4), the old river bed of the Czarna Hancza and its intlow to Lake Wigry (stations 5 and 6), and in the villages Czerwony...
In field experiment the effect of two active ingredients (imazethapyr and linuron) on symbiotic nitrogen fixation activity and microorganisms under legume crops (pea, horse bean, yellow lupine, white lupine, soybean) was determined. The studies indicated that both imazethapyr and linuron can cause decrease of root - nodule bacteria nitrogenase activity. They also can stimulate development of bacteria...
The purpose of this paper is to provide a summary of data on PAH content in soils in Poland, published in literature over the last 20 years. This paper presents a preliminary assessment of soil contamination by PAHs for different land use patterns. A review of available literature highlights the need to continue research on PAH contamination levels in environmental media in Poland, including surface...
The efficiency of utilization of low molecular weight organic molecules by neustonic and planktonic bacteria inhabiting the waters of the Gdańsk Deep region has been determined. The most intensive growth was observed in the presence of amino acids, while carbohydrates and organic acids were utilized less actively. Glutamic acid, asparatic acid, histidine, glycine, cysteine and calcium lactate were...
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