Metakrylan 2,3-epoksypropylu (metakrylan glicydylu) Dokumentacja proponowanych dopuszczalnych wielkości narażenia zawodowego

Abstract

2,3-Epoxypropyl methacrylate (glycidyl methacrylate, GMA) is an organic chemical compound, an ester of methacrylic acid and 2,3-epoxypropan-1-ol. It is a colorless liquid with a fruity odor. It is used as a co-monomer for the production of epoxy polymers, as an adhesion promoter and cross-linking co-monomer in the production of vinyl and acrylic resins. This substance is on the ACSH (The Advisory Committee on Safety and Health at Work) priority list for developing a proposal for an EU limit value. So far, no normative values in the air of the working environment have been defined in Poland in regard of 2,3-epoxypropyl methacrylate. The MAC value of 0,3 mg/m3 and STEL value of 0,6 mg/m3 have been proposed. The basis for calculating the MAC value was the LOAEC value of 3,55 mg/m3 for the irritation of the nasal epithelium in mice (olfactory epithelium metaplasia). Taking into account the carcinogenicity of GMA and its effect on the skin, the following notations have been proposed: “Carc. 1B” – carcinogenic substance of hazard category 1B, “C” – corrosive substance, “A” – skin sensitizing substance, “Ft” – fetotoxic substance, and “Skin” – skin absorption of the substance may be just as important as for inhalation exposure. There is no basis for setting BEI value.