Musi waChivabvu 3, 2023, EPA yakaburitsa mutemo wakarongwa muFederal Register kurambidza kushandiswa kwakawanda kwemethylene chloride.
Mvumo yeEPA yemutemo wakarongwa inopihwa pasi pemutemo weToxic Substances Control Act (TSCA), uye dichloromethane ikemikari yechipiri ine njodzi inodzorwa pasi pechirongwa chekuvandudza chakagadzirwa naFrank R. Lautenberg. Iyo 21st Century Chemical Safety Act ya2016, mushure mekunge sangano iri ratevera danho rekudzivirira vanhu kubva pakufumurwa kweasbestos, rakaunzwa gore rapfuura.
Dichloromethane inoshandiswa nenzira dzakasiyana siyana, kusanganisira kushandiswa kwevatengi senge aerosol degreasers uye mabhurashi ekuchenesa pendi uye machira, zvekutengesa zvekutengesa zvakaita seanonamira uye sealants, uye maindasitiri ekushandisa mukugadzira mamwe makemikari. Semuyenzaniso, dichloromethane inoshandiswa sekemikari yepakati mukugadzirwa kwemahydrofluorocarbons (HFCs)32, ayo anoshandiswa mumafiriji akasanganiswa kutsiva zvinhu zvine mukana wepamusoro wekupisa kwepasi.
Vanhu vanosvika makumi masere nevashanu vafa neacute methylene chloride exposure kubvira 1980, kunyanya vashandi vekondirakiti yekuvandudza dzimba vaive vakadzidziswa zvizere uye vakashongedzerwa nemidziyo yekuzvidzivirira, sekureva kweEnvironment Protection Agency.
Kuongororwa kwengozi kweiyo agency kune dichloromethane kwakakonzerwa nenjodzi dzine chekuita nevashandi, nyanzvi dzisiri-vashandisi (vashandi vari padyo asi vasina kuratidzwa zvakananga kumakemikari), vatengi, uye avo vari padyo nenzvimbo yekushandiswa kwemutengi. The Environmental Protection Agency yakaona njodzi dzekuipa kwehutano hwevanhu, kusanganisira neurotoxicity, chiropa uye cancer mhedzisiro kubva mukufemerwa, uye kuratidzwa kweganda kune methylene chloride.
Mitemo yekutarisa njodzi inotariswa ichakurumidza kuderedza kugadzirwa, kugadzirisa uye kugovera methylene chloride kune ese anoshandiswa nevatengi uye akawanda maindasitiri uye ekutengesa mashandisirwo, mazhinji ayo anozoitwa zvizere mukati memwedzi gumi nemashanu. Kune akawanda ekushandiswa kwemethylene chloride iyo EPA inoda kurambidza, ongororo yayo yakaratidza kuti mutengo uye inoshanda dzimwe nzira kune methylene chloride zvigadzirwa zvinowanzo kuwanikwa.
“Sayenzi iri seri kwemethylene chloride yakajeka uye kufumurwa kunogona kukonzera migumisiro yakakomba yeutano uye kunyange rufu, chiri chokwadi nokuda kwemhuri dzakawanda dzakarasikirwa navadikani vavo kuchepfu yakakomba,” akadaro Mutariri weEPA Michael S. Regan. mune imwe agency press release. "Ndosaka EPA iri kutora matanho nekupa zano rekuchengetedza hutano hwevashandi nekuunza kudzora kwakasimba kwenzvimbo yebasa izvo zvinorambidza kushandiswa kwakawanda kwekemikari iyi uye kuderedza kuratidzwa mune mamwe ese. Bata. Kurambidzwa kwenhoroondo iyi kunoratidza kufambira mberi kukuru kwatakaita mukushandiswa kwezvitsva zvinodzivirira kuchengetedzwa kwemakemikari uye kutorwa kwematanho akareba ekuchengetedza hutano hweveruzhinji zviri nani."
"Nezvekugadzira maindasitiri, kugadzirwa kwemaindasitiri, uye kushandiswa kwemubatanidzwa izvo EPA isina kuronga kurambidza, EPA iri kupa chirongwa chekuchengetedza kemikari panzvimbo yebasa ine miganho yekudzivirira kuchengetedza vashandi zviri nani," akadaro mukutaura. “EPA yakagamuchira mashoko emuindasitiri anoratidza kuti zvimwe zvivakwa zvinogona kutotevedzera zvinodiwa nemethylene chloride exposure limits. Mutemo wakarongwa weEPA unotsigira nhamburiko dziri kuramba dzichiitwa dzekudzikisa hutsi.
Pamusoro pezvo, EPA inoratidza kuti kumwe kushandiswa kwedichloromethane kunodiwa neNASA, DOD neFAA kunoramba kuchidzorwa zvakasimba munzvimbo yebasa, sezvo kuratidzwa kunogona kudzikiswa zvakakwana mumamiriro ezvinhu akaoma zvikuru kuderedza njodzi kuvashandi zvakanyanya sezvinobvira.
"Zvirambidzo zvakarongwa uye zvirambidzo zvichadzivirirawo nzanga kubva pakusangana nemethylene chloride," chirevo chakadaro. “Bazi reEnvironmental Protection Agency, richishandisa makore matanhatu eruzivo rwekubuda muchetura, raona nhamba shoma yenzvimbo senjodzi inogona kuitika munharaunda dzakakomberedzwa.
Maonero pamusoro pemutemo wakarongwa achagamuchirwa kuburikidza neFederal Electronic Rulemaking Portal kusvika Chikunguru 3, 2023, yekupinda nhamba EPA-HQ-OPPT-2020-0465.
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