collector wrote:.......I wonder how in past times when almost everyone drank from these pieces daily,since chilhood, it didn´t happen a general, massive and fatal intoxication.
Because in past times, there was not the sophistication of diagnosis for such things as low level lead poisioning. Lead is not instantly "fatal". Fatal doses are rare. Generally speaking it is a cumulative, slow situation of subtle deterioration. The effects are slow to show up and can also be mis-attributed to other problems. By the time a person is approaching a fatal dose, they have long had overt and dramatic symptoms.
In some cases in some eras, lead poisioniong was simply "ignored" as a "cost of living"
It is only relatively recently that we have become aware of the damage that even low levels of lead in the body can do. Particualrly to kids.
This below is a well known reference on this subject that those of us who teach ceramic toxicology are well aware of.... thought you'd find it of interest:http://www.rachel.org/files/document/Le ... ective.pdf