Discuss the class of heavy metals considering (1) Exposure, distribution, metabolism and excretion (2) Mechanism of toxic action (3) Target organ toxicity (4) The toxic doses and illustrating your points with reference to specific heavy metals. Are there toxicological factors that are particularly important for this class?

Discuss the class of heavy metals considering (1) Exposure, distribution, metabolism and excretion (2) Mechanism of toxic action (3) Target organ toxicity (4) The toxic doses and illustrating your points with reference to specific heavy metals. Are there toxicological factors that are particularly important for this class?