NgoMashi 18, 2024, i-US Environmental Protection Agency (EPA) yamemezela ukuthi isiwuqedile umthetho wokulawulwa kwezinhlekelele ngaphansi kwenqubo ebuyekeziwe ekhona yokubuyekezwa kwamakhemikhali ku-Toxic Substances Control Act (TSCA), ivimbela ukwakhiwa, ukungenisa, ukucubungula, ukusatshalaliswa kanye nokusetshenziswa kwe-asbestos ye-chrysotile ku-: diaphragms embonini ye-chlor-alkali; ama-gaskets weshidi ekukhiqizeni amakhemikhali; amabhuleki embonini kawoyela; amabhuleki ezimoto angemuva kwemakethe kanye nama-linings; eminye imikhiqizo yokushayisana kwezimoto; namanye ama-gaskets, njll.
I-Asbestos, eyaziwa njenge-carcinogen, sekuyisikhathi eside ibeka usongo olukhulu empilweni yomphakathi, ixhunyaniswa nomdlavuza onjengomdlavuza wamaphaphu, umdlavuza wesibeletho, nomdlavuza we-laryngeal. Ukusetshenziswa kwayo kuvinjelwe emazweni angaphezu kwama-50 emhlabeni jikelele. Nakuba kunezinhlobo ezahlukene ze-asbestos, ukusetshenziswa kwe-asbestos e-chrysotile kuhileleke ngokuyinhloko e-US okwamanje. Lokhu kuvinjelwa kuphawula ukuqaliswa kokuqala okuphelele kwesichibiyelo se-TSCA sowezi-2016.
Ukuvinjelwa kuzoqala ukusebenza kusukela ezinsukwini ezingama-60 ngemuva kokushicilelwa komthetho kuRejista Yenhlangano. I-EPA ibeke isikhathi soshintsho esiphusile, futhi ukuqaliswa kokuvinjelwa kuzokwenziwa ngezigaba:
1. Imboni ye-Chlor-alkali: Izodinga okungenani iminyaka emihlanu ukuqeda kancane kancane ukusetshenziswa kwama-diaphragm e-asbestos. Kusenezitshalo eziyisishiyagalombili ze-chlor-alkali e-US ezisebenzisa i-asbestos diaphragm, ehlangene ekhiqiza ingxenye eyodwa kwezintathu ye-chlorine kazwelonke. Lezi zikhungo zizoshintshela kubuchwepheshe be-non-asbestos diaphragm noma i-non-asbestos membrane technology, ngomthetho wokugcina oqinisekisa ukuthi eziyisithupha kuzo ziqeda lolu shintsho phakathi neminyaka emihlanu, futhi ezimbili ezisele zizolandela okufanayo.
2. Amashidi ane-asbestos gaskets ekukhiqizeni amakhemikhali: Lawa avinjelwe phakathi neminyaka emibili ngemva kokusebenza komthetho, ngokuvamile okuyizinsuku ezingu-60 ngemva kokushicilelwa.
3. Phakathi neminyaka emibili ngemva kokuba umthetho wokugcina ususebenza, iningi lamashidi aqukethe i-asbestos azovinjelwa, kanye nenkathi yenguquko yeminyaka emihlanu yalawo asetshenziswa ekukhiqizeni i-titanium dioxide kanye nokucubungula impahla yenuzi. Ama-gaskets afakiwe angase aqhubeke nokusetshenziswa.
4. Amabhuleki amabhuleki embonini kawoyela, amabhuleki ezimotweni zangemuva kwezimakethe kanye namalayini, eminye imikhiqizo yokushayisana kwezimoto kanye namanye ama-gaskets: Lokhu kuzovalwa phakathi nezinyanga eziyisithupha ngemva kokusebenza komthetho. Imikhiqizo efakiwe ingase iqhubeke nokusetshenziswa.
5. Umnyango Wezamandla wase-US iSavannah River Site: Ukusetshenziswa kwamashidi aqukethe i-asbestos kuzovunyelwa kuze kube ngu-2037 ukuze kuqinisekiswe ukulahlwa okuphephile kwezinto zenuzi akonakala ngesikhathi kuvikela abasebenzi ekuchayekeni ezintweni ezikhipha imisebe.
I-EPA idinga abanikazi noma ama-opharetha ukuthi athobele umkhawulo okhona wamahora ayisishiyagalombili wokuchayeka kumakhemikhali (ECEL) wamafayili angu-0.005 (f)/cubic centimeter (cc), oqala ezinyangeni eziyisithupha ngemva kokusebenza komthetho wokugcina. Futhi idinga izinyathelo zokuphepha endaweni yokusebenza ukuze kuvikelwe abasebenzi ekuchayekeni kwe-asbestos phakathi nanoma yiziphi izikhathi zokuphela konyaka ezingaphezulu kweminyaka emibili.
Ngokuhlukana, i-EPA iphinda ihlole ezinye izinhlobo zemicu ye-asbestos engxenyeni 2 yokuhlolwa kwengozi ye-asbestos. I-EPA izokhipha ingxenye 2 yokuhlolwa kwengozi okusalungiswa maduze futhi izoshicilela ukuhlolwa kokugcina kwengozi ekupheleni kuka-2024.
Uma udinga noma yiluphi usizo noma unemibuzo, sicela uxhumane nathi nge-service@cirs-group.com.
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