Pa Seputembara 28, 2023, bungwe la US Environmental Protection Agency (EPA) lidamaliza lamulo loti lipoti la PFAS, lomwe lidapangidwa ndi akuluakulu aku US kwazaka zopitilira ziwiri kuti apititse patsogolo Ndondomeko Yantchito yolimbana ndi kuipitsidwa kwa PFAS, kuteteza thanzi la anthu, ndikulimbikitsa chilungamo cha chilengedwe. Ndilofunikira panjira ya EPA ya PFAS, Panthawiyo, nkhokwe yayikulu kwambiri ya perfluoroalkyl ndi perfluoroalkyl substances (PFAS) yopangidwa ndikugwiritsidwa ntchito ku United States idzaperekedwa kwa EPA, anzawo, komanso anthu.
Zachindunji
Bungwe la US Environmental Protection Agency (EPA) lafalitsa malamulo omaliza operekera malipoti ndi kusunga zolemba za perfluoroalkyl ndi perfluoroalkyl substances (PFAS) pansi pa Gawo 8 (a) (7) la Toxic Substances Control Act (TSCA). Lamuloli limafuna kuti opanga kapena ogulitsa kunja kwa PFAS kapena PFAS yomwe ili ndi zinthu zopangidwa (kuphatikiza zotumizidwa kunja) mchaka chilichonse kuyambira 2011 ayenera kupereka EPA chidziwitso pakugwiritsa ntchito kwawo, kupanga, kutaya, kuwonekera, ndi zoopsa mkati mwa miyezi 18-24 lamuloli litayamba kugwira ntchito. , ndipo zolemba zoyenera ziyenera kusungidwa kwa zaka 5. Zinthu za PFAS zomwe zimagwiritsidwa ntchito ngati mankhwala ophera tizilombo, chakudya, zowonjezera zakudya, mankhwala, zodzoladzola, kapena zida zachipatala sizili ndi udindo wonena izi.
Mitundu ya 1 ya PFAS yomwe ikukhudzidwa
Zinthu za PFAS ndi gulu lazinthu zamankhwala zokhala ndi matanthauzidwe apadera. Ngakhale EPA imapereka mndandanda wazinthu za PFAS zomwe zimafunikira zidziwitso, mndandandawo siwokwanira, kutanthauza kuti lamuloli silimaphatikizapo mndandanda wazinthu zomwe zadziwika. M'malo mwake, zimangopereka mankhwala omwe amakwaniritsa chilichonse mwazinthu zotsatirazi, zomwe zimafuna kuti PFAS ipereke malipoti:
R - (CF2) - CF (R ′) R ″, pamene CF2 ndi CF onse ali carbon saturated;
R-CF2OCF2-R ', kumene R ndi R' angakhale F, O, kapena saturated carbon;
CF3C (CF3) R'R, pomwe R 'ndi R' akhoza kukhala F kapena mpweya wodzaza.
2 Kusamala
Malinga ndi ndime 15 ndi 16 ya lamulo la US Toxic Substances Control Act (TSCA), kulephera kupereka uthenga motsatira malamulowo kudzaonedwa ngati mchitidwe wosaloledwa, malinga ndi zilango za anthu, ndipo zitha kuchititsa kuti aimbidwe mlandu.
BTF ikuwonetsa kuti mabizinesi omwe achita zamalonda ndi United States kuyambira 2011 akuyenera kutsatira mosamalitsa mbiri yazamalonda yamankhwala kapena zinthu, kutsimikizira ngati zinthuzo zili ndi zinthu za PFAS zomwe zimakwaniritsa tanthauzo lake, ndikukwaniritsa nthawi yake yopereka malipoti kuti apewe zovuta kutsatira.
BTF imakumbutsa mabizinesi oyenerera kuti aziyang'anira mosamala momwe malamulo a PFAS akuwunikiridwa, komanso kukonza zopanga ndi zatsopano zakuthupi kuti zitsimikizire kuti zogulitsa zikutsatira. Tili ndi gulu laukadaulo loti lizitsata zomwe zachitika posachedwa pamiyezo yoyang'anira ndikukuthandizani kupanga dongosolo loyezetsa loyenera kwambiri. Chonde khalani omasuka kulankhula nafe.
Nthawi yotumiza: Dec-28-2023
