Litsi tsa tlhahiso ea lik'hemik'hale tse fetang 200 naheng ka bophara - ho kenyeletsoa le tse ngata Texas haufi le Lebōpo la Kou - li tla hlokoa ho fokotsa mesi e chefo e ka bakang mofetše ho batho ba lulang haufi tlas'a molao o mocha oa Setsi sa Tšireletso ea Tikoloho o phatlalalitsoeng ka Labobeli.
Libaka tsena li sebelisa lik'hemik'hale tse kotsi ho etsa polasetiki, lipente, masela a maiketsetso, chefo e bolaeang likokoanyana le lihlahisoa tse ling tsa peterole. Lethathamo la EPA le bontša hore hoo e ka bang 80, kapa 40% ea tsona, li fumaneha Texas, haholo-holo metseng e lebopong la leoatle joalo ka Baytown, Channelview, Corpus Christi, Deer Park, La Porte, Pasadena le Port Arthur.
Molao o mocha o shebane le ho fokotsa lik'hemik'hale tse tšeletseng: ethylene oxide, chloroprene, benzene, 1,3-butadiene, ethylene dichloride le vinyl chloride. Kaofela li tsebahala ka ho eketsa kotsi ea mofetše le ho baka tšenyo tsamaisong ea methapo, ea pelo le ea 'mele ea ho itšireletsa mafung ka mor'a ho pepesehela lithethefatsi nako e telele.
Ho ea ka EPA, molao o mocha o tla fokotsa lithane tse fetang 6,000 tsa litšilafalo tsa moea tse chefo selemo le selemo le ho fokotsa palo ea batho ba nang le kotsi e phahameng ea kankere ka 96% naheng ka bophara.
Molao o mocha o tla boela o hloke dibaka tsa ho kenya disebediswa tsa ho lekola moya tse lekanyang mahloriso a k'hemik'hale e itseng moleng wa thepa wa sebaka sa tlhahiso.
Re ka fana ka li-sensor tsa khase tsa li-parameter tse ngata tse ka lekola mefuta e fapaneng ea likhase
Harold Wimmer, mopresidente le CEO oa Mokhatlo oa Matšoafo oa Amerika, o itse polelong hore li-monitor tsa ho lemoha moea "li tla thusa ho sireletsa metse e haufi ka ho e fa tlhahisoleseling e nepahetseng haholoanyane mabapi le boleng ba moea oo ba o hemang."
Lithuto li bontša hore lichaba tsa mebala li na le monyetla o moholo oa ho pepesehela tšilafalo e tsoang lifemeng tsa tlhahiso ea lik'hemik'hale.
Cynthia Palmer, mohlahlobi e moholo oa lik'hemik'hale tsa peterole mokhatlong o sa etseng phaello oa tikoloho oa Moms Clean Air Force, o boletse polelong e ngotsoeng hore molao o mocha "ke oa botho haholo ho 'na. Motsoalle oa ka oa hlooho ea khomo o hōletse haufi le libaka tse robong tsa tlhahiso ea lik'hemik'hale Texas tse tla akaretsoa ho etsoe melao ena e mecha. O hlokahetse ka kankere ha bana ba hae ba le sekolong sa bana ba banyenyane."
Palmer o itse molao o mocha ke kgato ya bohlokwa bakeng sa toka ya tikoloho.
Tsebiso ea Labobeli e tla khoeli kamora hore EPA e lumelle molao oa ho fokotsa mesi e tsoang litsing tsa khoebo tsa ho bolaea likokoana-hloko. Laredo, baahi ba re limela tse joalo li kentse letsoho sekgahla se phahameng sa kankere motseng.
Hector Rivero, mopresidente le CEO oa Lekhotla la Lik'hemistri la Texas, o itse lengolo-tsoibila hore molao o mocha oa EPA o tla ba le tšusumetso e kholo tlhahisong ea ethylene oxide, eo a itseng e bohlokoa bakeng sa lihlahisoa tse kang likoloi tsa motlakase le li-chip tsa lik'homphieutha, hammoho le ho bolaea likokoana-hloko lihlahisoa tsa bongaka.
Rivero o itse lekhotla, le emelang libaka tse fetang 200 indastering ea tlhahiso ea lik'hemik'hale, le tla latela melaoana e mecha, empa o lumela hore tsela eo EPA e lekotseng likotsi tsa bophelo bo botle tsa ethylene oxide e ne e e-na le liphoso tsa saense.
“Ho itshetleha ha EPA hodima data ya dikhase tse siilweng ke nako ho lebisitse molaong wa ho qetela o thehilweng hodima dikotsi tse hodimo le melemo e sa lebellwang,” ho boletse Rivero.
Molao o mocha o qala ho sebetsa nakoana kamora hore o phatlalatsoe ho Federal Register. Phokotso e kholo ka ho fetisisa kotsing ea mofetše e tla ba ka lebaka la ho fokotsa mesi e tsoang ea ethylene oxide le chloroprene. Libaka li tlameha ho fihlela litlhoko tsa ho fokotsa ethylene oxide nakong ea lilemo tse peli kamora hore molao o sebetse 'me li tlameha ho fihlela litlhoko tsa chloroprene matsatsing a 90 kamora letsatsi la ho qala ho sebetsa.
Victoria Cann, 'muelli oa lefapha la tikoloho la mmuso, Khomishene ea Texas ea Boleng ba Tikoloho, o itse polelong hore mokhatlo o tla etsa lipatlisiso ho lekola ho latela litlhoko tsa molao o mocha e le karolo ea lenaneo la oona la ho latela melao le ho e phethahatsa.
Molao ona o shebane le disebediswa tse dibakeng tsa tlhahiso ya dikhemikhale tse lokollang tshilafatso ya moya jwalo ka ditsamaiso tsa phapanyetsano ya mocheso (disebediswa tse futhumatsang kapa tse phodisang metsi), le ditshebetso tse kang ho ntsha moya le ho bulela moya tse lokollang dikhase moyeng.
Ho phatloha ha motlakase hangata ho etsahala nakong ea likhoebo tse qalang, ho koaloa ha thepa le ho se sebetse hantle. Texas, lik'hamphani li tlalehile hore li lokolla tšilafalo e feteletseng ea liponto tse limilione tse 1 nakong ea serame sa Pherekhong. Babuelli ba tikoloho ba bitsitse liketsahalo tseo likheo tsa ts'ebetsong ea tikoloho tse lumellang libaka ho silafatsa ntle le kotlo kapa likotlo tlas'a maemo a itseng joalo ka nakong ea boemo ba leholimo bo feteletseng kapa likoluoa tsa lik'hemik'hale.
Molao o hloka hore dibaka di etse tlaleho e eketsehileng ya ho latela melao le ditekolo tsa tshebetso kamora diketsahalo tse jwalo.
Nako ea poso: Mmesa-11-2024