Ing website ayni gagamit yang cookies para mas masanting ing kekang user experience. nung patuloy meng gamitan ining site, makisanmetung ka keng kekaming COOKIE POLICY.
Nung atin kang ACS membership number, isulud me keni para a-associate miya ining account keng kekang membership. (pabalung)
Ing ACS papahalagahan ne ing kekang privacy. King pamagsubmit mu kareng kekang impormasyun, malyari kang lungub king C&EN at mag-subscribe king kekaming weekly newsletter. Gagamitan mi ing impormasyun a binie mu para mas masanting ing kekang pamamasa at e mi ya ibie ing kekang impormasyun kareng aliwang tau.
Ing ACS Premium package mamye yang ganap a access keng C&EN ampo ing sablang bage a atyu keng ACS community.
Ing US Environmental Protection Agency migmungkahi yang pamagbawal keng pamangamit methylene chloride kareng sablang mamisali ampo kareng keraklan a industrial ampo commercial a aplikasyun. Ing bayung proposal datang ya kaybat ning ahensya meyari ne ing risk assessment inyang Nobyembre 2022 na ikit na ing exposure kareng solvents malyari yang maging sangkan ning e masanting a epektu keng kalusugan antimo ing sakit keng ate ampo ing cancer.
Ing methylene chloride mayayakit ya kareng miyayaliwang produktu, kayabe no reng adhesives, paint strippers, ampong degreasers. Maralas ya muring magagamit antimong hilaw a materyales para king pamaglalang kareng aliwang kemikal. Ing US Environmental Protection Agency sasabyan na na maigit 900,000 a magobra ampo 15 million a mamisali ing regular a makalwal keng methylene chloride.
Ing compound ya ing kaduang me-evaluate lalam ning revised Toxic Substances Control Act (TSCA), na mangailangan keng Environmental Protection Agency para repasu ing kaligtasan da reng bayu ampo existing a commercial chemicals. Ing goal ning ahensya yapin ing ilako na ing pamaglalang, pamagprosesu ampo pamikalat ning methylene chloride kilub ning 15 bulan.
Deng mapilan a gamit ning methylene chloride e la makalub kening ban, kayabe na ing pamangamit na bilang chemical agent. Alimbawa, patuloy yang gamitan keng pamaglalang ning hydrofluorocarbon-32 refrigerant, na megawa bilang alternatibung alternatibung mas matas a potensyal ning pamag-init ning yatu ampo/o pamagkulang ning ozone.
"Maniwala kami na ing methylene chloride manatili yang ligtas para keng militar ampo federal a gamit," Michal Friedhoff, associate administrator ning Environmental Protection Agency's (EPA) Office of Chemical Safety and Pollution Prevention, sinabi na keng metung a press conference bayu ing anunsyu. "Ing EPA mangailangan yang aksyon para protektan ing kaligtasan da reng magobra."
Deng mapilan a grupung pang-kapaligiran tinggap de ing bayung proposal. Makanyan man, pepakit da naman ing karelang pamagmalasakit kareng exceptions keng patakaran na magpaintulut keng patuloy a pamangamit ning methylene chloride para keng tutuking dekada.
I Maria Doa, senior director ning chemical policy keng Environmental Defense Fund, sinabi na ing makabang panaun a pamangamit patuloy yang magdalang panganib kareng komunidad a manuknangan malapit kareng exempt sites. Sinabi nang Doa na ing Environmental Protection Agency dapat yang paiklian ing panaun ning exemption o mag impose yang karagdagang pamagbawal keng methylene chloride emissions ibat kareng tanaman a reni.
Samantala, ing American Chemistry Council, metung a grupung pangkalakalan a magrepresenta kareng gagawang kemikal, sinabi da na ing mipanukalang tuntunan malyari yang makaapektu king supply chain. Ing grupu sinabi na keng metung a pahayag na ing mabilis a pamagbawas keng methylene chloride production magresulta ya keng pamagbawas a maigit kapitna. Ing grupu sinabi na ing pamagbawas malyari yang mika "domino effect" kareng aliwang industriya antimo ing pharmaceuticals, lalu na nung "deng manufacturers magdesisyun lang tuknang ing produksyun."
Ing methylene chloride ing kadwa kareng 10 kemikal a balak ning Environmental Protection Agency para asuri para kareng posibling panganib keng kalusugan ning tau ampo ing kapaligiran. mumuna, asbestos ya. Sinabi nang Freedhoff na ing patakaran para keng katlung sangkap, perchlorethylene, malyari yang kalupa da reng bayung patakaran para keng methylene chloride, kayabe na ing pamagbawal ampo mas mahigpit a proteksyun kareng magobra.