A ranar Mayu 3, 2023, EPA ta buga wata ƙa'ida da aka tsara a cikin Rajista na Tarayya don hana yawancin amfani da methylene chloride.
An ba da izinin EPA don ƙa'idar da aka tsara a ƙarƙashin Dokar Kula da Abubuwan Guba (TSCA), kuma dichloromethane shine sinadari na biyu wanda aka tsara haɗarinsa ƙarƙashin tsarin sake fasalin da Frank R. Lautenberg ya kirkira. Dokar kare sinadarai ta karni na 21 na shekarar 2016, bayan da hukumar ta bi wani mataki na kare mutane daga kamuwa da cutar asbestos, an bullo da shi a bara.
Ana amfani da Dichloromethane ta hanyoyi daban-daban, ciki har da aikace-aikacen mabukaci irin su aerosol degenreasers da goge goge don fenti da sutura, aikace-aikacen kasuwanci irin su adhesives da sealants, da aikace-aikacen masana'antu a cikin samar da wasu sinadarai. Misali, ana amfani da dichloromethane azaman tsaka-tsakin sinadari wajen samar da hydrofluorocarbons (HFCs)32, waɗanda ake amfani da su a cikin na'urori masu haɗaka don maye gurbin abubuwa tare da mafi girman yuwuwar dumamar yanayi.
Aƙalla mutane 85 ne suka mutu sakamakon mummunar faɗuwar methylene chloride tun daga 1980, galibin ma'aikatan kwangilar inganta gida waɗanda ke da cikakken horo da sanye da kayan kariya na sirri, a cewar Hukumar Kare Muhalli.
Ƙididdigar haɗarin dichloromethane da hukumar ba ta da tushe ta samo asali ne sakamakon haɗarin da ke tattare da ma'aikata, ƙwararrun ƙwararrun masu amfani (ma'aikatan da ke kusa amma ba a fallasa su kai tsaye ga sinadarai), masu amfani da su, da kuma waɗanda ke kusa da wurin amfani da mabukaci. Hukumar Kare Muhalli ta gano haɗarin mummunan tasirin lafiyar ɗan adam, gami da neurotoxicity, hanta da cutar kansa daga inhalation, da bayyanar fata ga methylene chloride.
Sharuɗɗan gudanar da haɗari da aka tsara za su hanzarta rage samarwa, sarrafawa da rarraba methylene chloride don duk amfanin mabukaci da yawancin masana'antu da kasuwanci, mafi yawansu za a aiwatar da su cikin watanni 15. Ga mafi yawan amfani da methylene chloride da EPA ke ba da shawarar haramtawa, bincikenta ya nuna cewa tsada da tasiri madadin samfuran methylene chloride suna gabaɗaya.
"Kimiyyar da ke bayan methylene chloride a bayyane take kuma fallasa na iya haifar da mummunan sakamako na kiwon lafiya har ma da mutuwa, wanda shine gaskiya ga iyalai da yawa waɗanda suka rasa waɗanda suke ƙauna ga mummunan guba," in ji Shugaban EPA Michael S. Regan. a wata sanarwa da hukumar ta fitar. "Wannan shine dalilin da ya sa EPA ke daukar mataki ta hanyar ba da shawara don kare lafiyar ma'aikata ta hanyar gabatar da tsauraran matakan kula da wuraren aiki da za su hana yawancin amfani da wannan sinadari da kuma rage fallasa a duk sauran. Tuntuɓar. Wannan haramcin da aka tsara na tarihi ya nuna gagarumin ci gaban da muka samu wajen aiwatar da sabbin tsare-tsare don kare lafiyar sinadarai da kuma ɗaukar matakan da suka daɗe don kare lafiyar jama'a."
"Don masana'antun masana'antu, sarrafa masana'antu, da kuma amfani da tarayya wanda EPA ba ta ba da shawarar haramtawa ba, EPA tana ba da shirin kariya na sinadarai na wurin aiki tare da tsauraran iyakokin fallasa don mafi kyawun kare ma'aikata," in ji sanarwar. "EPA ta karbi shigarwar masana'antu wanda ke nuna cewa wasu wurare na iya yin biyayya da ƙayyadaddun ƙayyadaddun ƙayyadaddun methylene chloride. Waɗannan buƙatun da aka gabatar za su ba da damar ci gaba da sarrafa methylene chloride don samar da sinadarai masu mahimmanci don rage ƙoƙarin sauyin yanayi wanda aka bayyana a cikin Rahoton Ƙirƙirar Ƙirƙirar Ƙira da Ƙira na Amurka. Aiki yana da mahimmanci. Canjin yanayi mai dacewa da yanayin yanayi, da kuma sauran canje-canjen da ke haifar da canje-canjen yanayi na EPA. yana tallafawa kokarin da ake yi na rage hayakin da ake fitarwa."
Bugu da ƙari, EPA ta nuna cewa wasu amfani da dichloromethane da NASA, DOD da FAA ke buƙata suna ci gaba da sarrafa su sosai a wurin aiki, saboda za a iya rage bayyanar da isa a cikin waɗannan yanayi masu wuyar gaske don rage haɗari ga ma'aikata gwargwadon yiwuwa.
Sanarwar ta ce "Hani da hane-hane da aka tsara za su kuma kare al'umma daga kamuwa da cutar methylene chloride." "Hukumar Kare Muhalli, ta yin amfani da shekaru shida na bayanan fallasa masu guba, ta gano ƙananan wurare a matsayin haɗari ga al'ummomin da ke da shinge. Haramcin a cikin tsarin da EPA ta tsara zai rufe ci gaba da amfani da methylene chloride a mafi yawan waɗannan wurare, wanda shine ainihin haɗari ga al'umma."
Za a karɓi tsokaci game da ƙa'idar da aka tsara ta hanyar Portal na Dokar Lantarki ta Tarayya har zuwa Yuli 3, 2023, lambar shigarwa EPA-HQ-OPPT-2020-0465.
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