I-EPA ikhiphe umthethonqubo ohlongozwayo ngaphansi koMthetho Wokulawula Izinto Ezinobuthi (TSCA) ovimbela ukusetshenziswa okuningi kwe-dichloromethane (eyaziwa nangokuthi i-dichloromethane noma i-DCM). I-Dichloromethane iyikhemikhali enokusetshenziswa okubanzi kwezimboni nezentengiselwano. Iyi-solvent esetshenziswa ezimbonini ezahlukahlukene. Iphinde isetshenziswe ekwenzeni amanye amakhemikhali, kufaka phakathi amanye ama-refrigerant. Izimboni ezithintekile zifaka:
Ngokuvumelana negunya layo ngaphansi kweSigaba 6(a) se-TSCA, i-EPA inqume ukuthi i-dichloromethane ibeka ingozi engafanele empilweni noma emvelweni. Ukuphendula, i-EPA yakhipha umthetho ophakanyisiwe ngoMeyi 3, 2023: (1) ukuvimbela ukukhiqizwa, ukucubungula, nokusatshalaliswa kwe-methylene chloride ukuze isetshenziswe ngabathengi, kanye (2) ukuvimbela ukusetshenziswa kwe-methylene chloride ezimbonini eziningi. Umthetho ophakanyisiwe we-EPA uzovumela i-FAA, i-NASA kanye noMnyango Wezokuvikela, kanye nabanye abakhiqizi beziqandisi, ukuthi baqhubeke nokusebenzisa i-methylene chloride. Kulezi zicelo ezisele, umthetho ophakanyisiwe uzosungula izilawuli eziqinile endaweni yokusebenza ukuze kuncishiswe ukuchayeka kubasebenzi.
I-EPA ilinganisela ukuthi lo mthetho uzothinta ukusetshenziswa kwe-methylene chloride minyaka yonke e-United States. Kuhlongozwa ukuthi kumiswe ukukhiqizwa, ukucubungula, ukusatshalaliswa kanye nokusetshenziswa kwe-dichloromethane zingakapheli izinyanga ezingu-15. Njengoba kunjalo ngokususwa kwamakhemikhali athile aqhubekayo, aqongelelekayo kanye nanobuthi (ama-PBT) e-EPA muva nje, isikhathi esifushane sokukhishwa kwe-methylene chloride singase singaneli ukuhlangabezana nezidingo zezimboni ezithile, ngakho-ke kungase kube nezinkinga ezithile zokuthobela imithetho. Okungenani, umthetho ohlongozwayo ungaba nemiphumela ebanzi ezinkingeni zokukhiqiza kanye nochungechunge lokuhlinzeka njengoba izinkampani zihlola ukusetshenziswa kwe-methylene chloride futhi zifuna ezinye izindlela ezifanele.
I-EPA izothola imibono ngomthetho ohlongozwayo ngoJulayi 3, 2023. Izimboni ezithintekile kufanele zicabangele ukunikeza imibono ngekhono lazo lokuthobela imithetho, okuhlanganisa ukuphazamiseka okungenzeka kochungechunge lokuhlinzeka kanye nokunye ukwephulwa kwemithetho.
Isixwayiso: Ngenxa yohlobo olujwayelekile lwalesi sibuyekezo, ulwazi olunikezwe lapha lungase lungasebenzi kuzo zonke izimo, futhi akufanele lusetshenziswe ngaphandle kweseluleko esithile sezomthetho ngokusekelwe esimweni sakho esithile.
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