Cuyahoga Falls, Ohio—Wadde nga enkola ezifuga mu nsi yonna zikyagenda mu maaso n’okuleetawo ebiziyiza amakolero ga silikoni, waliwo ebifo ebitonotono ebitangaavu ku bbanga, okusinziira ku Alexandra Rinehart, yinginiya avunaanyizibwa ku kulungamya eby’amaguzi mu Shin-Etsu Silicones of America Inc.
Rinehart yayanjudde ebipya ku mateeka g'ensi yonna agafuga silikoni ng'ayita mu Silicones Environmental, Health and Safety Center mu lukungaana lwa Silikoni mu nsi yonna, olwatudde mu April 10-11 mu kibuga Cuyahoga Falls, Ohio.
Ekibiina kya SEHSC, ekibiina kya American Chemistry Council, kigendereddwamu okutumbula enkozesa ennungi eya silicones nga bayita mu kulabirira ebintu n’okunoonyereza ku bulamu n’obukuumi bw’obutonde, bwe yagambye .
"Simply put, twagala okuwa abalungamya ssaayansi asinga okwekenneenya bannaabwe eriwo okusalawo okutuufu okulungamya ku bintu byaffe," Rinehart bwe yategeezezza.
Ekibiina kino kikolebwa abakola silikoni mu North America n’abayingiza ebintu mu ggwanga omuli Dow Corning Corp., Elkem silicones, evonik a.G., Milliken & Co., ebikozesebwa mu kuzannya mu kiseera ekitono ebikutte inc., shin-etsu ne wacker chemie a.
As a group, SEHSC advocates that countries conduct their own assessment of octamethylcyclotetrasiloxane (D4), using risk-based weight-of-evidence approaches. Risk-based methodology uses previous analysis to prioritize assessment based on risk. A weight-of-evidence approach takes into account a wider range of evidence, as opposed to a strength-of-evidence approach, which uses evidence with a narrower focus.
Ekibiina era kiwagira okusalawo okwesigamiziddwa ku bulabe olw’okukebera eddagala ly’eggwanga, n’okukkiriza embeera y’ekitongole kya U.s. ng’ekitongole ekikulu ekifuga okukebera eddagala mu U.s., Rinehart bwe yagamba.
U.S. Ebiragiro .
Mu U.s. ku mutendera gwa federo, SEHSC yamaliriza endagaano y’okukkiriza mu September 2017 nga ekwatagana ne EPA okukola ebikwata ku kulondoola okw’ensi entuufu okusobola okufuna D4 obutonde bw’ensi mu mazzi oluvannyuma lw’okufulumya amazzi okuva mu bifo ebirongoosa amazzi amakyafu, Rinehart bwe yategeezezza .
"Ebirungo ebituufu eby'obutonde ebipimiddwa mu sampuli ezikung'aanyiziddwa mu nteekateeka eno bijja kwanguyiza EPA okwekenneenya akabi k'obutonde bw'ensi ku D4," bwe yagambye.
Okulondoola kwakolebwa mu bifo ebirongoosa amazzi amakyafu mu munisipaali n’amakolero nga bifulumya amazzi ku mazzi ag’okungulu, era okwekenneenya akabi ak’obutonde akeekenneenya, okwekenneenya obutonde bw’ensi kwazuula nti okukwatibwa D4 obutonde bw’ensi tekulina bulabe butaliimu nsa era tewali bukwakkulizo bwa kulungamya bwetaagisa, bwe yagambye.
"EPA eraga nti ejja kukozesa data eno ennywevu okukola okwekenneenya kwayo okw'akabi k'obutonde bwa D4," bwe yagambye. "Ebikwata ku nsonga eno ey'ensi entuufu bijja kuyamba okukakasa nti ekitongole kijja kwesigama ku data entuufu ey'okulaga okusinga okukola modeling ya d{3}}".
By state, Washington mu kusooka yali ewandiise D4 ku bigambibwa nti endocrine factors, naye yaggyibwa ku lukalala olw’obuzito bw’obujulizi, Rinehart bwe yategeezezza.
"Kyali buwanguzi bunene nnyo eri okubunyisa silikoni nga kikwataganye ne kaweefube wa ACC," bwe yagambye.
In Oregon and Vermont, D4 is listed as "persistent, biocumulative and toxic"—or PBT— because of applying criteria without consideration of exposure, she said. Similarly, Maine has D4 and decamethylcyclopentasiloxane (D5) both listed as PBT, because of lack of consideration of exposure. Dodecamethylcyclohexasiloxane (D6) was delisted because of Tewali nsala za kitongole ekirina obuyinza. mu Minnesota, D5 ne D6 ziwandiikiddwa nga PBT olw’okuteekebwa ku nkalala ezesigamiziddwa ku bulabe.
Rinehart said regulatory determinations made in the U.S. under the reformed Toxic Substances Control Act (now the Lautenberg Chemical Safety for the 21st Century Act), which gives EPA the authority to require reporting, record-keeping and testing requirements and restrictions relating to chemical substances, should be used preferentially by U.S. states for chemical of concern lists.
Global okumenya .
Mu Bulaaya, emirimu gibadde gya bbugumu nga bwe kiri ennaku zino, yagambye nti. waliwo okuziyiza D4, D5 ne D6 mu bintu ebirabirira omuntu, obutakolebwa, okuteekebwa ku katale oba okukozesebwa butereevu mu bintu eby’okunaaba oluvannyuma lwa January 2020. okuziyiza kukwata ku bintu ebirina okukuŋŋaanya D4, D5 oba D6 mu kitundu ekisukkiridde ekya 0{{10} 1 ku buli 100.
Endagaano ya Stockholm ndagaano ya nsi yonna ey’obutonde bw’ensi egenderera okumalawo oba okukugira okukola obucaafu obutasalako obutonde, era omukago gwa Bulaaya gwalonda D4 nga POP mu 2017, naye teyakkirizibwa, Rinehart bwe yategeezezza.
"Era tukkiriza nti D4 ejja kuddamu okusunsulwa nga POP mu 2018, era tujja kwongera okulondoola n'okulwanirira kino," bwe yagambye. "Ekifo ky'amakolero ga silikoni kiri bwe kityo nti okukebera obuzito bw'obujulizi obusinziira ku bulabe bwa D4 n'okulowooza okusaanidde ku butonde bw'ensi kulaga nti D4 si pop era tekiraga bukwakkulizo bwonna ku kulungamya{{8}"
Ekitongole kya Bulaaya ekikola ku by’eddagala mu Bulaaya kyalangirira okwebuuza ku bintu eby’amaanyi ennyo omuli D4, D5 ne D6, Rinehart yagambye nti. okuva mu March 2018, bammemba ba EU bateesezza eddagala lyonna essatu nga SVHCs. singa ekiteeso ekyo kiwagirwa amawanga agali mu mukago gwa EU, okusalawo kwa SVHC okusembayo kuyinza okukolebwa nga bukyali nga June2018.
EU era yateesa ku bukwakkulizo obw’enjawulo obwa D4, D5 ne D6 mu bintu ebiva ku kwerabirira n’enkozesa endala ez’abakozesa n’ez’ekikugu, gamba ng’okuyonja dry, waxes ne polishes, okunaaba n’okuyonja ebintu. ekifo kya SEHSC kiri nti obukwakkulizo obw’enjawulo obw’okwongerako buba nga tebunnatuuka era nga tebulina bwenkanya, era amateeka agaliwo kati galina okuteekebwa mu bujjuvu nga tegannaba kufulumizibwa nga mpya gafulumiziddwa, she sayed.} era nga tegannaba kuteekebwa mu nkola mu bujjuvu nga mpya zifulumiziddwa, she saids she said{6}}.
Nga "ray of sunshine and hope," Australian activity is "mu butuufu okutambula obulungi ennyo," bwe yagamba. ng'akozesa okwekenneenya okwesigamiziddwa ku bulabe kwa siloxanes, Australia yafundikira akabi akatuufu eri obulamu bw'omu mazzi okuva mu kweyambisa eddagala ku bisuubirwa mu mazzi ag'okungulu tegayinza kuba makulu{. Australia teteese kuteesa kwonna ku kulungamya ku bintu bino.
Mu Japan, D4 yaweebwa olukalala lw’okufuga ebiragalalagala eby’eddagala mu mutendera gw’eddagala erirondoola kubanga ebikwata ku butwa bw’obutonde ebimu tebyaliyo. Ekika kino kitegeeza eddagala eririwo erikakasibwa nti likwatagana era nga likola ebiramu, era nga lyetaaga abakola ebintu n’abayingiza ebintu mu ggwanga okumaliriza lipoota ku ssente z’okukozesa n’amawulire amalala awamu n’ebiragiro ebiyinza okutangira obucaafu, Rinehart bwe yategeezezza.
D5 ejja kusigala ng’eddukanyizibwa wansi wa CSCL wansi w’omutendera gw’eddagala erya bulijjo, era D6 yassibwa mu mutendera gw’eddagala erirondoola . Olunaku olutandika okukola ku kugabanya mu bika lusuubirwa okuba ekiseera mu April. okunoonyereza okupima ebirungo bya D4, D5 ne D6 mu Tokyo Bay bigenda mu maaso wansi w’enteekateeka ya Silicones ey’okukola eby’okwegomba eby’okukola eby’okwegomba eby’okukola eby’okwegomba eby’okukola eby’okwegomba eby’okukola eby’okwegomba kwa silikaani.
Mu China, minisitule y’obutonde n’obutonde bw’ensi yaggyawo D4 ku lukalala lw’ebbago ly’eddagala erikulembeddwa, era okwekenneenya akabi kwa D4 kujja kutandika essaawa yonna mu April. okwekenneenya okwesigamiziddwa ku bulabe kujja kukolebwa enjuyi ssatu: amakolero ga silicones mu nsi yonna, amakolero ga China Silicones ne gavumenti ya China, bwe yagambye .
Singa amateeka agakwata ku D4, D5 ne D6 gagenda mu maaso ku bintu ebiri wansi nga silicone rubber, "Wayinza okubaawo ebimu ku bivaamu eby'amaanyi ennyo," Rinehart bwe yagamba. "Wayinza okubaawo obukwakkulizo bw'ebintu mu EU, era ekyo kyandibadde kikuŋŋaanyiziddwa mpolampola nga toyagala kusukka muwendo ogugere, oboolyawo okusukka 0. 1 ku buli 100 mu nkola zo mu nkola zo {6} oba nga kibeera kitono nga as a as as. 1 ku buli 100 mu nkola zo mu nkola zo {6} oba nga kiyinza okuba nga kitono. 1 ku buli kikumi mu nkola zo mu nkola zo {6} oba nga kiyinza okuba nga kitono. 1 ku buli 100 mu nkola zo ez'okutondebwa nga {6} oba nga kiyinza okuba nga kitono. 1 ku buli kikumi mu nkola zo ez'okutondebwa nga {6} oba nga kiyinza okuba nga kitono. 1 ku buli kikumi mu nkola zo ez'okutondebwa kw'ebintu.
"D4 ne D5 bikulu nnyo, ebitundu ebikulu eri silicone polymers, kale ekyo kiyinza okuba ekizibu ekituufu. y'ensonga lwaki tukolagana nnyo n'abalungamya okulwanyisa ekyo."