[Effect of sodium fluoride in the presence of vitamin C on isolated rat hepatocytes].

Physiologically, prooxidants coexist in a dynamic equilibrium with factors that have antioxidant properties and so form an integrated antioxidant defence system of the organism. By determining the total antioxidant status (TAS) in the biological material it is possible to evaluate the influence of various factors on the organism's antioxidant properties. The aim of this study was to assess the influence of sodium fluoride and ascorbic acid on TAS.

[Effect of accumulating fluorine and sulphur compounds on the content of chlorophyll in pine needles (Pinus sylvestris L.) from some areas of southern Poland in 2001-2003].

Concentrations of F(-), S and chlorophyll in needles of pines growing near metallurgical works and power plants were determined. A statistically significant positive correlation between F(-) (in the range of 4.32 to 21.