| monitoring and in vivo ecotoxicological evaluation of surface water quality in umbria and tuscany, italy. | new zealand white male rabbits have been watered for 45 days with surface water taken from three sites on lake trasimeno (umbria, italy) and from two artificial reservoirs along the tiber river, one located on the upper tract of the river, just at the border between the regions of tuscany and umbria, and the other at the southernmost end of the tiber umbrian tract, just before it leaves umbria. the detoxifying enzymatic activity (erod) in rabbits was evaluated and used as an indicator of the che ... | 2003 | 12940600 |