Mafekitori ekugadzira makemikari anopfuura mazana maviri munyika yese - kusanganisira akawanda muTexas kuGulf Coast - achadikanwa kuderedza kusvibiswa kwemhepo ine chepfu kunogona kukonzera kenza kuvanhu vanogara pedyo pasi pemutemo mutsva weEnvironmental Protection Agency wakaziviswa neChipiri.
Nzvimbo idzi dzinoshandisa makemikari ane njodzi kugadzira mapurasitiki, pendi, machira ekugadzira, mishonga yezvipembenene nezvimwe zvigadzirwa zvemafuta. Rondedzero yeEPA inoratidza kuti inosvika 80, kana 40% yadzo, dziri muTexas, kunyanya mumaguta ari kumahombekombe egungwa akadai seBaytown, Channelview, Corpus Christi, Deer Park, La Porte, Pasadena nePort Arthur.
Mutemo mutsva uyu unotarisa pakuderedza makemikari matanhatu: ethylene oxide, chloroprene, benzene, 1,3-butadiene, ethylene dichloride uye vinyl chloride. Ose anozivikanwa nekuwedzera njodzi yekenza uye kukonzera kukuvara kwetsinga, mwoyo uye masoja ekudzivirira muviri mushure mekugara kwenguva refu.
Sekureva kweEPA, mutemo mutsva uyu uchaderedza matani anopfuura 6,000 emhepo ine chepfu inosvibisa gore rega rega uye uchaderedza huwandu hwevanhu vane njodzi yakakura yekenza ne96% munyika yese.
Mutemo mutsva uyu uchadawo nzvimbo dzekuisa michina yekutarisa mhepo inoyerera nefenzi inoyera huwandu hwekemikari chaiyo panzvimbo yekugadzira zvinhu.
Tinogona kupa masensa egasi ane maparameter akawanda anogona kutarisa magasi akasiyana-siyana
Harold Wimmer, mutungamiriri uye CEO weAmerican Lung Association, vakataura mumashoko avo kuti mamonitor ekuona mhepo "achabatsira kuchengetedza nharaunda dziri pedyo nekuvapa ruzivo rwakanyatsojeka nezvemhando yemhepo yavanofema."
Ongororo dzinoratidza kuti nharaunda dzine mavara akasiyana-siyana dzine mukana mukuru wekusvibiswa nemakemikari anogadzira zvinhu.
Cynthia Palmer, nyanzvi yepamusoro yemakemikari epetrochemicals nesangano risingabatsiri reMoms Clean Air Force, akataura mumashoko akanyorwa kuti mutemo mutsva uyu "ndine hanya zvikuru. Shamwari yangu yepamwoyo yakakurira pedyo nenzvimbo pfumbamwe dzekugadzira makemikari muTexas dzichafukidzwa mukugadzirwa kwemitemo mitsva iyi. Akafa nekenza vana vake pavakanga vari kuchikoro chevana vadiki."
Palmer akati mutemo mutsva uyu idanho rakakosha rekusimudzira kururamisirwa kwezvakatipoteredza.
Chiziviso cheChipiri chakauya mwedzi mushure mekunge EPA yabvumidza mutemo wekuderedza kuburitswa kwe ethylene oxide kubva munzvimbo dzekutengesa dzinouraya utachiona. MuLaredo, vagari vanoti zvirimwa zvakadaro zvakakonzera kuwedzera kwehuwandu hwekenza muguta.
Hector Rivero, mutungamiriri uye CEO weTexas Chemistry Council, akataura mu email kuti mutemo mutsva weEPA uchava nemhedzisiro huru pakugadzirwa kwe ethylene oxide, iyo yaakati yakakosha kuzvigadzirwa zvakaita semotokari dzemagetsi nemachipisi emakomputa, pamwe nekuuraya utachiona muzvigadzirwa zvekurapa.
Rivero akati kanzuru, iyo inomiririra nzvimbo dzinopfuura mazana maviri muindasitiri yekugadzira makemikari, ichatevedzera mitemo mitsva, asi anotenda kuti nzira iyo EPA yakaongorora nayo njodzi dzehutano dze ethylene oxide yakanga isina kunaka nesainzi.
"Kuvimba kweEPA nedata rekare reutsi hwemhepo kwakatungamira kumutemo wekupedzisira wakavakirwa panjodzi dzakakwidzwa uye mabhenefiti ekufungidzira," akadaro Rivero.
Mutemo mutsva uyu unotanga kushanda nguva pfupi yadarika mushure mekuburitswa muFederal Register. Kudzikiswa kukuru kwenjodzi yekenza kuchabva mukuderedza kuburitswa kwe ethylene oxide ne chloroprene. Zvivako zvinofanirwa kuzadzisa zvinodiwa zvekuderedza ethylene oxide mukati memakore maviri mushure mekunge mutemo uyu watanga kushanda uye zvinofanirwa kuzadzisa zvinodiwa zve chloroprene mukati memazuva makumi mapfumbamwe mushure mezuva rekutanga kushanda.
Victoria Cann, mutauriri wesangano rezvekuchengetedzwa kwezvakatipoteredza rehurumende, Texas Commission on Environmental Quality, vakati mumashoko avo sangano iri richaita ongororo yekuongorora kutevedzera zvinodiwa nemutemo mutsva sechikamu chechirongwa chavo chekutevedzera mitemo nekusimbisa mutemo.
Mutemo uyu unotarisa michina iri munzvimbo dzekugadzira makemikari inoburitsa kusvibiswa kwemhepo senge masisitimu ekuchinjana kupisa (midziyo inodziisa kana kutonhodza mvura), uye maitiro akaita sekuburitsa nekuburitsa magasi anoburitsa mumhepo.
Kupisa moto kunowanzoitika panguva yemakambani matsva, kuvharwa kwemagetsi uye kutadza kushanda zvakanaka. MuTexas, makambani akashuma kuti akaburitsa huwandu hwemakirogiramu miriyoni imwe chete ekusvibiswa kwakawandisa panguva yechando chaNdira. Vatsigiri vezvakatipoteredza vakati zviitiko izvozvo inzira dzekuchengetera kuchengetedzwa kwezvakatipoteredza dzinobvumira zvivakwa kusvibisa pasina chirango kana faindi pasi pemamwe mamiriro akaita sepanguva yemamiriro ekunze akaipisisa kana njodzi dzemakemikari.
Mutemo uyu unoda kuti nzvimbo dziite mamwe maripoti ekutevedzera mitemo uye ongororo yekushanda kwemutemo mushure mezviitiko zvakadaro.
Nguva yekutumira: Kubvumbi-11-2024