Effects of secondary biological treatment plant effluent administration, as drinking water, to rats’ urogenital system in relation to cadmium and lead accumulation
2019
Papagiannis, Ioannis | Vezyraki, Patra | Simos, Yannis V. | Kontargiris, Evangelos | Giannakopoulos, Xenophon | Peschos, Dimitrios | Sofikitis, Nikolaos | Evangelou, Angelos | Kalfakakou, Vasiliki
The aim of this study was to examine the effect of the secondary biological treatment plant effluent administration on the kidneys, urinary bladder, and testis of Wistar rats in relation to lead (Pb) and cadmium (Cd) accumulation, since such an effluent is used for irrigation of edible plants. Male Wistar rats, randomly assigned into 5 groups, were treated with domestic sewage effluent (DSE) for 24 months. Cadmium and lead concentrations in the DSE, rats’ tissues, and urine were estimated by means of atomic spectroscopy. Lead was rapidly accumulated in high amounts in rats’ kidney and to a lesser extent in the testis whereas Cd concentration was raised in all tissues examined. Deposition of Cd and Pd in the kidney of the rats resulted in profound damage over time. The results showed that long-term administration to DSE as drinking water exposes living organisms to urogenital stress related to heavy metal concentration and pH of the effluent.
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