NgoSeptemba 28, 2023, i-Arhente yoKhuseleko lweNdalo yase-US (EPA) yagqibezela umgaqo we-PFAS wokunika ingxelo, owaphuhliswa ngabasemagunyeni base-US kwithuba elingaphezu kweminyaka emibini ukuqhubela phambili iSicwangciso sokuSebenza ukulwa nongcoliseko lwePFAS, ukukhusela impilo yoluntu, nokukhuthaza ubulungisa kokusingqongileyo. Linyathelo elibalulekileyo kumgaqo-nkqubo we-EPA we-PFAS, Ngelo xesha, eyona datha inkulu ye-perfluoroalkyl kunye ne-perfluoroalkyl substances (PFAS) eyenziwe yaza yasetyenziswa e-United States iya kunikwa i-EPA, amaqabane ayo, kunye noluntu.
Umxholo othile
I-Arhente yoKhuseleko lokusiNgqongileyo yase-US (EPA) ipapashe ingxelo yokugqibela kunye nemithetho yokugcina irekhodi ye-perfluoroalkyl kunye ne-perfluoroalkyl substances (PFAS) phantsi kweCandelo le-8 (a) (7) loMthetho woLawulo lwe-Toxic Substances (TSCA). Lo mgaqo ufuna ukuba abavelisi okanye abarhwebi be-PFAS okanye i-PFAS equlethe izinto eziveliswayo (kubandakanywa nokungeniswa kwamanye amazwe) kuwo nawuphi na unyaka ukususela ngo-2011 kufuneka babonelele nge-EPA ngolwazi malunga nokusetyenziswa kwabo, imveliso, ukulahlwa, ukuvezwa, kunye nobungozi phakathi kweenyanga ze-18-24 emva kokuba umthetho uqala ukusebenza. , kunye neerekhodi ezifanelekileyo kufuneka zigcinwe iminyaka emi-5. Izinto ze-PFAS ezisetyenziswa njengezitshabalalisi, ukutya, izongezo zokutya, iziyobisi, izinto zokuthambisa, okanye izixhobo zonyango azikhutshelwanga kwesi sibophelelo sengxelo.
Iintlobo ze-1 zePFAS ezibandakanyekayo
Izinto ze-PFAS ludidi lwezinto zekhemikhali ezineenkcazo ezithile zesakhiwo. Nangona i-EPA ibonelela ngoluhlu lwezinto ze-PFAS ezifuna izibophelelo zesaziso, uluhlu alubanzi, oku kuthetha ukuba umthetho awubandakanyi uluhlu oluthile lwezinto ezichongiweyo. Endaweni yoko, ibonelela kuphela ngeekhompawundi ezihlangabezana nazo naziphi na kwezi zakhiwo zilandelayo, ezifuna izibophelelo zokunika ingxelo zePFAS:
R - (CF2) - CF (R ′) R ″, apho i-CF2 kunye ne-CF zombini ziyikhabhoni ehluthekileyo;
R-CF2OCF2-R ', apho i-R kunye ne-R' ingaba ngu-F, O, okanye i-carbon saturated;
I-CF3C (CF3) R'R, apho i-R 'kunye no-R' inokuba ngu-F okanye i-saturated carbon.
2 Izilumkiso
Ngokutsho kwamacandelo 15 kunye ne-16 ye-US Toxic Substances Control Act (TSCA), ukungaphumeleli ukungenisa ulwazi ngokuhambelana neemfuno zokulawula kuya kuthathwa njengesenzo esingekho mthethweni, ngokuxhomekeke kwizohlwayo zoluntu, kwaye kunokukhokelela ekutshutshisweni kolwaphulo-mthetho.
I-BTF icebisa ukuba amashishini athe abandakanyeka kwimisebenzi yorhwebo kunye ne-United States ukusukela ngo-2011 kufuneka alandele ngokuqhubekayo iirekhodi zorhwebo zeekhemikhali okanye izinto, aqinisekise ukuba ngaba iimveliso ziqulethe izinto ze-PFAS ezihlangabezana nenkcazo yolwakhiwo, kwaye zizalisekise kwangethuba izibophelelo zabo zokunika ingxelo ukuphepha ukungabikho. imingcipheko yokuthotyelwa.
I-BTF ikhumbuza amashishini afanelekileyo ukuba abeke iliso elibukhali imeko yohlaziyo lwemithetho yePFAS, kunye nokulungiselela imveliso kunye nezinto ezintsha ezintsha ngokufanelekileyo ukuqinisekisa ukuba iimveliso ziyahambelana. Sineqela lobuchwephesha lobuchwephesha ukulandelela uphuhliso lwamva nje kwimigangatho yolawulo kwaye sikuncede ekuphuhliseni esona sicwangciso sovavanyo sifanelekileyo. Nceda uzive ukhululekile ukuqhagamshelana nathi.
Ixesha lokuposa: Dec-28-2023
