| ddt is still a problem in developed countries: the heavy pollution of lake maggiore. | the zebra mussel (dreissena polymorpha), one of the most widely used bioindicators of persistent organic pollutants, trace metals and radionuclides in several worldwide freshwater ecosystems, has been used to monitor ddt contamination trends in lake maggiore since 1996, caused by industrial effluents on a tributary of the river toce, one of the major affluents of the lake. dreissena specimens were collected at two sampling sites, one within the baveno bay, where the river toce flows, and the oth ... | 2003 | 12738285 |