[Risk hypothesis in the use of "non-carbon copy paper"].

Some kinds of "carbon less copy-paper" presently used in Italy were examined. The analysis showed the presence on the paper of mycrocapsules containing special inks formed by organic dyes dissolved in mineral oil and, sometimes, polychlorobyfenils. Therefore there is a possible risk for the workers using carbon less copy-paper. It is necessary therefore to complete the research in order to demonstrate this hypothesis also from biological point of view.