3. 1-Metylo-2-pirolidon. Dokumentacja proponowanych dopuszczalnych wielkości narażenia zawodowego

Abstract

1-Methyl-2-pyrrolidone (NMP) exists as a hygroscopic liquid. This substance is produced and / or imported to the European Economic Area in large quantities (10.000–100.000 t/year). According to the information on the ECHA website, the substance has been registered under the REACH regulation, inter alia, by two registrants from Poland. NMP is mainly used as an industrial solvent in the production of chemicals and in the industrial production. In April 2018, the European Commission limited the use of NMP due to its properties which are posing a risk to human health. Restriction 71 of Annex XVII to REACH applies to manufacturing, placing on the market and using NMP. The derived no effect level (DNEL) values for worker exposure have been determined to be 14.4 mg/m3 for inhalation exposure and 4.8 mg/kg/day for dermal exposure. The NMP documentation with the proposed NDS value was revised due to the non-compliance of the NDS value applicable in Poland (NDS 40 mg/m3) with the DNEL value recommended by the Risk Assessment Committee: DNELinh.14.4 mg/m3. Introducing a standard at the level of the DNEL value would allow the use of NMP also in a concentration equal to or greater than 0.3%. For NMP, the critical effect is respiratory irritation, chemosensory effects and reproductive toxicity. It was proposed to keep the NDS NMP value applicable in Poland, i.e. 40 mg/m3. The basis for this value was respiratory irritation and chemosensory effects. Due to the irritating effect of the compound, the TLV value was left equal to 80 mg/m3. The proposed values are consistent with the values adopted in the European Union, contained in Directive 2009/161/EU. The DSB value was established at 20 mg 2-HMSI/g creatinine. The substance was labeled with the notation „skin”, „I” and with the notation „Ft”. This article discusses the problems of occupational safety and health, which are covered by health sciences and environmengig.