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Hukumar Kare Muhalli ta Amurka ta ba da shawarar hana amfani da methylene chloride a duk wani amfani da kayan masarufi da kuma mafi yawan aikace-aikacen masana'antu da kasuwanci. Sabuwar shawarar ta zo ne bayan da hukumar ta kammala tantance haɗari a watan Nuwamba na 2022 wanda ya gano cewa fallasa ga sinadarai masu narkewa na iya haifar da mummunan illa ga lafiya kamar cututtukan hanta da ciwon daji.
Ana samun Methylene chloride a cikin kayayyaki iri-iri, ciki har da manne, masu cire fenti, da kuma masu cire mai. Haka kuma ana amfani da shi sosai a matsayin kayan da ake amfani da su wajen samar da wasu sinadarai. Hukumar Kare Muhalli ta Amurka ta kiyasta cewa ma'aikata sama da 900,000 da masu amfani da shi miliyan 15 suna fuskantar matsalar methylene chloride akai-akai.
Wannan hadadden shine na biyu da aka tantance a karkashin Dokar Kula da Guba ta Toxic Substances Act (TSCA), wadda ta bukaci Hukumar Kare Muhalli ta sake duba lafiyar sabbin sinadarai na kasuwanci da na yanzu. Manufar hukumar ita ce ta kawo karshen samarwa, sarrafawa da rarraba methylene chloride cikin watanni 15.
Wasu amfani da methylene chloride an keɓe su daga wannan haramcin, gami da amfani da shi a matsayin sinadari. Misali, za a ci gaba da amfani da shi wajen samar da ruwan sanyi na hydrofluorocarbon-32, wanda aka ƙirƙiro a matsayin madadin madadin da ke da ƙarfin dumamar yanayi da/ko raguwar iskar ozone.
"Mun yi imanin cewa methylene chloride yana da aminci ga amfani da sojoji da na tarayya," in ji Michal Friedhoff, mataimakin shugaban Ofishin Kare Muhalli na Tsaron Sinadarai da Hana Gurɓatawa (EPA), a wani taron manema labarai kafin sanarwar. "EPA za ta buƙaci ɗaukar mataki don kare lafiyar ma'aikata."
Wasu ƙungiyoyin kare muhalli sun yi maraba da sabon shawarar. Duk da haka, sun kuma nuna damuwa game da keɓancewa ga dokar da za ta ba da damar ci gaba da amfani da methylene chloride na akalla shekaru goma masu zuwa.
Maria Doa, babbar darakta a fannin manufofin sinadarai a Asusun Kare Muhalli, ta ce irin wannan amfani na dogon lokaci zai ci gaba da haifar da haɗari ga al'ummomin da ke zaune kusa da wuraren da aka keɓe. Doa ta ce Hukumar Kare Muhalli ya kamata ta rage tsawon lokacin keɓewa ko kuma ta sanya ƙarin takunkumi kan fitar da hayakin methylene chloride daga waɗannan tsire-tsire.
A halin yanzu, Majalisar Masana Kimiyya ta Amurka, wata ƙungiyar kasuwanci da ke wakiltar masana'antun sinadarai, ta ce ƙa'idodin da aka gabatar za su iya yin tasiri ga tsarin samar da kayayyaki. Ƙungiyar ta ce a cikin wata sanarwa cewa raguwar saurin samar da methylene chloride zai haifar da raguwar fiye da rabi. Ƙungiyar ta ce ragewar na iya yin "tasirin domino" ga wasu masana'antu kamar magunguna, musamman idan "masana'antun suka yanke shawarar dakatar da samarwa gaba ɗaya."
Methylene chloride shine na biyu cikin sinadarai 10 da Hukumar Kare Muhalli ke shirin tantancewa don yiwuwar haɗari ga lafiyar ɗan adam da muhalli. Da farko, asbestos ne. Freedhoff ya ce ƙa'idojin wani abu na uku, perchlorethylene, na iya kama da sabbin ƙa'idoji ga methylene chloride, gami da haramcin da kuma tsauraran kariyar ma'aikata.