Ngomhla zingama-30 kuMbasa, 2024, i-United States Environmental Protection Agency (EPA) yakhipha ukuvinjelwa kokusetshenziswa kwe-dichloromethane enezinjongo eziningi ngokuvumelana nemithetho yokulawula ubungozi yoMthetho Wokulawulwa Kwezinto Eziwubuthi (TSCA). Lesi sinyathelo sihlose ukuqinisekisa ukuthi ukusetshenziswa okubalulekile kwe-dichloromethane kungasetshenziswa ngokuphepha ngohlelo oluphelele lokuvikela abasebenzi. Ukuvinjelwa kuzoqala ukusebenza phakathi kwezinsuku ezingama-60 ngemuva kokushicilelwa kwayo kuRejista ye-Federal.
I-Dichloromethane iyikhemikhali eyingozi, engase ibangele izinhlobo zomdlavuza nezinkinga ezinkulu zempilo, okuhlanganisa umdlavuza wesibindi, umdlavuza wamaphaphu, umdlavuza webele, umdlavuza wobuchopho, i-leukemia kanye nomdlavuza wesistimu yezinzwa. Ngaphezu kwalokho, iphinde ithwale ingozi ye-neurotoxicity kanye nokulimala kwesibindi. Ngakho-ke, ukuvinjelwa kudinga izinkampani ezifanele ukuthi zinciphise kancane kancane ukukhiqizwa, ukucubungula, nokusatshalaliswa kwe-dichloromethane kubathengi kanye nezinjongo eziningi zezimboni nezentengiso, okuhlanganisa ukuhlobisa ikhaya. Ukusetshenziswa kwabathengi kuzoqedwa phakathi nonyaka owodwa, kuyilapho ukusetshenziswa kwezimboni nokuhweba kuzovinjelwa phakathi neminyaka emibili.
Ezimweni ezimbalwa ezinokusetshenziswa okubalulekile ezindaweni ezinezimboni kakhulu, lokhu kuvinjelwa kuvumela ukugcinwa kwe-dichloromethane futhi kusungula indlela eyinhloko yokuvikela isisebenzi - Uhlelo Lokuvikela Amakhemikhali Endawo Yomsebenzi. Lolu hlelo lubeka imikhawulo eqinile yokuchayeka, izidingo zokuqapha, kanye nezibopho zokuqeqeshwa kwabasebenzi nezaziso ze-dichloromethane ukuze kuvikelwe abasebenzi engozini yomdlavuza nezinye izinkinga zempilo ezibangelwa ukuchayeka kumakhemikhali anjalo. Ezindaweni zokusebenza ezizoqhubeka nokusebenzisa i-dichloromethane, izinkampani eziningi zidinga ukuthobela imithethonqubo emisha zingakapheli izinyanga eziyi-18 ngemuva kokukhishwa kwemithetho yokulawulwa kobungozi futhi zihlale ziqapha.
Lezi zisetshenziswa eziyinhloko zihlanganisa:
Ukukhiqiza amanye amakhemikhali, njengamakhemikhali abalulekile esiqandisi angaqeda kancane kancane ama-hydrofluorocarbon ayingozi ngaphansi kwe-Bipartisan American Innovation and Manufacturing Act;
Ukukhiqizwa kwezihlukanisi zebhethri yemoto kagesi;
Izinsiza zokucubungula ezinhlelweni ezivaliwe;
Ukusetshenziswa kwamakhemikhali aselabhorethri;
Ukukhiqizwa kwepulasitiki nenjoloba, okuhlanganisa ukukhiqizwa kwe-polycarbonate;
I-Solvent Welding.
Isikhathi sokuthumela: Oct-23-2024