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Wzorce wchlaniania i sekwestracji Pb i Zn u ryb
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ISBN10: 6209815723
ISBN13: 9786209815720
Publisher: Wydawnictwo Nasza Wiedza
Published: Apr 15 2026
Pages: 72
Weight: 0.24
Height: 0.17 Width: 6.00 Depth: 9.00
Language: Polish
ISBN13: 9786209815720
Publisher: Wydawnictwo Nasza Wiedza
Published: Apr 15 2026
Pages: 72
Weight: 0.24
Height: 0.17 Width: 6.00 Depth: 9.00
Language: Polish
Systemy slodkowodne ulegają gwaltownemu zanieczyszczeniu metalami ciężkimi, takimi jak olów i cynk, co stanowi zagrożenie dla zdrowia ludzkiego i organizmów wodnych. Ryby mają tendencję do gromadzenia tych metali w swoich tkankach w stężeniach przewleklych. Toksyczne dzialanie olowiu znane jest od wieków. Olów oddzialuje na wszystkie uklady narządów, w tym uklad nerwowy, pokarmowy i krążenia zwierząt. Olów wypiera metale ważne z biologicznego punktu widzenia, takie jak wapń, cynk i magnez, zaklócając różne reakcje chemiczne zachodzące w organizmie. Cynk jest mikroelementem niezbędnym do prawidlowego funkcjonowania organizmu. Podwyższone poziomy cynku w systemach wodnych mogą wynikac ze zrzutu ścieków, opadów atmosferycznych, wymywania ścieków bytowych i mineralów zawierających metale, stosowania środków owadobójczych oraz procesów cynkowania. Jednak cynk może byc toksyczny w podwyższonych stężeniach. W związku z tym istotne stalo się zbadanie zakresu toksyczności tych dwóch metali oraz ich porównawczych wzorców wchlaniania i sekwestracji w systemie rybnym.
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