Mu 3 Mulumi, 2023, EPA yakamwaya mulawu mu Federal Register wakulesya kubelesya methylene chloride.
Kuzumizigwa kwa EPA kwamulawu ooyu kwapegwa aansi amulawu wakukwabilila misamu iikola (TSCA), mpawo dichloromethane ngo musamu wabili ntenda zyakwe zyeendelezyegwa aansi anzila yakucinca yakatalisyigwa aFrank R. Lautenberg. mulawu wa 21st Century Chemical Safety Act wa 2016, nikwakamana mbunga eeyi kutobela nzila yakukwabilila bantu kuzwa ku asbestos, wakatalisyigwa mwaka wamana.
Dichloromethane ibelesyegwa munzila zyiingi, ikuswanizya akubelesya bantu mbuli zibelesyo zyakugwisya mafuta aamuwo akusanzya mabbulashi aakupenta akuvwumba, zibelesyo zyamakwebo mbuli zyakunamatizya akujala, akubelesya mumafakitali mukupanga makemikalu aambi. Mbuli chitondeezyo, dichloromethane ibelesyegwa mbuli musamu waakati-kati mukupanga ma hydrofluorocarbons (HFCs)32, aayo abelesyegwa muma refrigerant aasanganizidwe kuti anjilile mubusena bwazintu zikonzya kupya kapati.
Bantu batasiki ku 85 bakafwa akaambo kakunywa musamu wa methylene chloride kuzwa mu 1980, bunji bwabo mbabelesi bachizuminano chakubambulula maanda aabo bakayiisyidwe azibelesyo zyakulikwabilila, kweendelanya a Environmental Protection Agency.
Buvwuntauzi bwa dichloromethane butakwe bumboni bwa mbunga bwakachitika akaambo kantenda zijatikizyidwe ababelesi, aabo batabelesyi (babelesi bali afwaafwi pesi batakwe misamu), basikuula, abaabo bali afwaafwi abusena bwakubelesya. Kabunga kakwabilila busena kakajana ntenda zikonzya kuchitika kubuumi bwamuntu, kubikkilizya akujaya boongo, chibindi a kkansa akaambo kakuyoya, akujatikizyigwa achikumba a methylene chloride.
Milawu yakulanganya ntenda yakayeeyelwa iyoocheesya kupanga, kubamba akwaabila methylene chloride kubantu boonse alimwi akubelesyegwa mumakkampani amumakwebo, bunji bwazyo ziyoobelesegwa mumyezi ilikkumi amusanu. Kubunji bwakubelesya kwa methylene chloride ooko EPA nkoili kuyanda kukasya, buvwuntauzi bwayo bwakatondezya kuti nzila zimbi zyakubelesya mubusena bwa methylene chloride zilajanwa.
"Sayensi iili musule lya methylene chloride ilisalede alimwi kujatikizyigwa kulakonzya kuleta mapenzi mapati kubuumi mane akufwa, eezi zili masimpe kumikwasyi myiingi yakafwidwa bayandwa babo akaambo kakunywa misamu iikola," wakaamba Mupati wa EPA Michael S. Regan. mubbuku lyamakani lyambunga. "Nchicho chakapa kuti EPA ibweze ntaamu kwiinda mukupa muzeezo wakukwabilila buumi bwababelesi kwiinda mukubikka milawu miyumu kubusena bwakubelekela iikonzya kulesya kubelesya musamu ooyu akucesya kujatikizyigwa kuli bamwi boonse. Kuswaangana. Ooku kulesyegwa kwakacitwa kwachiindi chilamfu kutondezya kuyaambele kupati nkotwachita mukubelesya nzila zipya zyakukwabilila buumi bwabantu boonse."
"Kupanga zintu mumafakitali, kubamba zintu mumafakitali, akubelesya kwamfulumende eeyo EPA njiyatakakanzide kukasya, EPA ilapa bubambe bwakukwabilila misamu iikola aabusena bwakubelekela antoomwe amilawu miyumu yakukwabilila babelesi," mbukwakaambwa muchibalo. "EPA yakatambula mizeezo yabasikupanga itondezya kuti zimwi zibelesyo zilakonzya kale kutobela milawu miyumu yakubelesya methylene chloride. Eezyi ziyandikana zilakonzya kuzumizya kuzumanana kubamba methylene chloride kuchitila kuti kube makemikalu aayandikana loko mukucheesya kuchincha kwachiimo chamulengalenga kwaambwa mu US Innovation and Manufacturing Reportants is Afrigerant Climate-Infriction Reportants. amwi makemikalu alagwasya kapati mukulwisya kuchincha kwachiimo chamulengalenga, mpawo mulawu wa EPA ngwaakayeeya ulagwasyilizya kusoleka kuzumanana kwakucesya muya uusofweede.”
Mukuyungizya, EPA yaamba kuti zimwi zibelesyo zya dichloromethane ziyandikana a NASA, DOD a FAA zilazumanana kweendelezyegwa loko aabusena bwakubelekela, nkaambo kujatikizigwa kulakonzya kucheya mubukkale oobu bukatazya loko kuchitila kuti kutabi ntenda kubabelesi mbuli mbukonzyeka.
"Zyakulesyegwa akulesyegwa ziyookwabilila bantu kuti batajatikizyigwi a methylene chloride," mbolyakaamba lugwalo. "Environmental Protection Agency, kubelesya myaaka iili musanu aimwi ya data yazyintu zikola, yakajana mweelwe musyoonto wamasena kuti ulakonzya kuba ntenda kubantu bali abwaanda. Kukasya mumulawo wa EPA kuyoojatikizya kuzumanana kubelesya musamu wa methylene chloride mumasena aaya manji, ooyo mubwini ulakonzya kuba ntenda. kubantu."
Mizeezo aatala amulawu ooyu iyootambulwa kwiinda mu Federal Electronic Rulemaking Portal kusikila mu July 3, 2023, namba yakunjila EPA-HQ-OPPT-2020-0465.
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