NgoSepthemba 28, 2023, i-US Environmental Protection Agency (EPA) yamemezela umthetho omusha obalulekile ngaphansi koMthetho Wokulawulwa Kwezinto Eziwubuthi (TSCA), odinga abakhiqizi bezinto ze-per- kanye ne-polyfluoroalkyl (PFAS) ukuthi banikeze idatha eyengeziwe yokulawula okungcono. Ama-PFAS ayikilasi elikhulu lama-organic fluoride azinzile kumakhemikhali aziwa ngamanzi awo nokumelana namabala, kanye nokwahlukanisa okuhle. Bathola ukusetshenziswa okubanzi emikhakheni ehlukahlukene yezimboni, okuhlanganisa ukupakishwa kokudla, izinto zikagesi, isikhumba nezingubo, izicelo zokwakha nezasendlini, izicishamlilo, nezinsiza zokwelapha. Kodwa-ke, ama-PFAS ayaphikelela futhi afuduka emvelweni, okwenza kube nzima ukuwehlisa. Abizwa nangokuthi amakhemikhali aphikelelayo futhi abe usongo olukhulu empilweni yomuntu kanye nendawo ezungezile.
Umthetho omusha udinga noma ngubani okhiqize (okubandakanya angenisiwe) ama-athikili aqukethe i-PFAS noma i-PFAS kusukela ngoJanuwari 1, 2011 ukuthi abike idatha ethile ku-EPA, okuhlanganisa ukusetshenziswa kwe-PFAS, amanani okukhiqiza, ukulahlwa, ukuchayeka, nezingozi. Kodwa-ke, i-PFAS esetshenziswa kwizibulala-zinambuzane, ukudla, izithasiselo zokudla, imithi, izimonyo noma izinsiza zezokwelapha azikhishiwe kulo mthetho. Lo mthetho uzoqala ukusebenza ngoNovemba 13, 2023.
Ngokusho kwe-40 CFR Ingxenye 705 ekhishwe yi-EPA, i-PFAS ichazwa njengokufaka okungenani eyodwa yalezi zakhiwo ezintathu:
(1) R–(CF2)–CF(R') R”, lapho zombili izingxenye ze-CF2 ne-CF zingamakhabhoni agcwele;
(2) R–CF2OCF2–R', lapho u-R no-R' kungaba ngu-F, O, noma amakhabhoni agcwele; futhi
(3) CF3C (CF3) R' R”, lapho u-R' no-R” kungaba ngu-F noma amakhabhoni agcwele;
I-EPA inqume ukuthi okungenani i-1462 PFAS eyaziwa ngokuthi yenziwe noma yasetshenziswa e-US kusukela ngo-2011 izoba ngaphansi komthetho wokugcina, ukuthwebula kangcono idatha ebalulekile edingwa yi-ejensi ukuvikela impilo yabantu kanye nemvelo kulawa makhemikhali.
Ngokomthetho omusha, amabhizinisi akhiqizile (okuhlanganisa nokungeniswa kwamanye amazwe) i-PFAS kusukela ngo-2011 izoba nezinyanga eziyi-18 kulandela usuku lokuqala lwalo mthetho ukubika idatha ye-PFAS ku-EPA. Amabhizinisi amancane abika kuphela ama-athikili aqukethe i-PFAS angenisiwe azoba nezinyanga ezingama-24 kusukela ngedethi yokuqala yalo mthetho ukubika i-PFAS ku-EPA. Amabhizinisi ahlulekayo ukuthobela umthetho azobhekana nezijeziso zomphakathi.
Ukwengeza, ngo-Okthoba 20, 2023, i-US EPA yaphothula umthetho wokudinga ukubika kwe-PFAS okuthuthukisiwe ku-Toxics Release Inventory (TRI).
Ukuze kulawulwe kangcono amakhemikhali aphikelelayo, i-US EPA ithuthukise ukubika nge-PFAS ku-TRI ngokususa ukukhululwa okuvumela izikhungo ukuthi zigweme ukubika ulwazi nge-PFAS lapho lawo makhemikhali esetshenziswa ezindaweni ezincane. Ngoba asetshenziswa ekugxilweni okuphansi emikhiqizweni eminingi. Lolu shintsho luvumela i-EPA ukuthi ithole idatha ye-PFAS ebanzi yokuvikelwa kwemvelo okungcono nokulondolozwa kwezempilo yomphakathi.
Umthombo ovela www.cirs-group.com
Ulwazi olubekwe ngenhla luhlinzekwa yi-www.cirs-group.com ngaphandle kwe-Cooig.com. I-Cooig.com ayenzi izethulo namawaranti mayelana nekhwalithi nokuthembeka komdayisi nemikhiqizo.
