Musi waGunyana 28, 2023, US Environmental Protection Agency (EPA) yakapedzisa mutemo wekuzivisa PFAS, wakagadziridzwa nevakuru veUS kweanopfuura makore maviri kusimudzira Chirongwa cheAction kurwisa kusvibiswa kwePFAS, kuchengetedza hutano hweveruzhinji, uye kukurudzira kururamisira kwezvakatipoteredza. Icho chiitiko chakakosha muEPA's strategic roadmap yePFAS, Panguva iyoyo, iyo yakakura kwazvo dhatabhesi yeperfluoroalkyl uye perfluoroalkyl zvinhu (PFAS) yakagadzirwa uye inoshandiswa muUnited States ichapihwa EPA, vanobatana nayo, uye veruzhinji.
Zvakananga
Iyo US Environmental Protection Agency (EPA) yakaburitsa iyo yekupedzisira yekushuma uye mitemo yekuchengetedza rekodhi yeperfluoroalkyl uye perfluoroalkyl zvinhu (PFAS) pasi peChikamu 8 (a) (7) cheToxic Substances Control Act (TSCA). Mutemo uyu unoda kuti vagadziri kana vatengesi vePFAS kana PFAS vane zvinhu zvinogadzirwa (kusanganisira kunze kwenyika) mune chero gore kubva 2011 vanofanirwa kupa EPA ruzivo nezve mashandisiro avo, kugadzira, kurasa, kufumurwa, uye njodzi mukati memwedzi gumi nemasere kusvika makumi maviri nemana mushure mekunge mutemo watanga kushanda. , uye marekodhi akakodzera anofanirwa kuchengetwa kwemakore mashanu. PFAS zvinhu zvinoshandiswa semishonga yezvipembenene, chikafu, zvekuwedzera chikafu, zvinodhaka, zvizorwa, kana zvigadzirwa zvekurapa hazvibvumidzwe kubva pane ichi chisungo chekuzivisa.
1 Mhando dzePFAS dzinobatanidzwa
PFAS zvinhu ikirasi yemakemikari zvinhu zvine tsananguro yezvimiro. Kunyangwe iyo EPA ichipa runyorwa rwePFAS zvinhu zvinoda zvisungo zvekuzivisa, rondedzero yacho haina kuzara, zvichireva kuti mutemo haubatanidzi rondedzero chaiyo yezvinhu zvakaonekwa. Pane kudaro, inongopa makomisheni anosangana nechero anotevera zvimiro, izvo zvinoda PFAS yekuzivisa zvisungo:
R - (CF2) - CF (R ′) R ″, uko CF2 neCF zvese zviri kabhoni yakazadza;
R-CF2OCF2-R ', apo R uye R' inogona kuva F, O, kana saturated carbon;
CF3C (CF3) R'R, apo R 'uye R' inogona kuva F kana saturated carbon.
2 Kungwarira
Zvinoenderana nechikamu 15 ne16 cheUS Toxic Substances Control Act (TSCA), kutadza kuendesa ruzivo zvinoenderana nezvinodiwa nemutemo kuchaonekwa sechiito chisiri pamutemo, pasi pezvirango zvehurumende, uye zvinogona kukonzera mhosva.
BTF inokurudzira kuti mabhizinesi akaita zviitiko zvekutengeserana neUnited States kubvira 2011 anofanirwa kutsvaga zvinyorwa zvekutengesa zvemakemikari kana zvinhu, kusimbisa kana zvigadzirwa zvacho zvine PFAS zvinhu zvinosangana netsananguro yezvimiro, uye nekuzadzisa zvisungo zvavo zvekuzivisa nenguva. njodzi dzekuteerera.
BTF inoyeuchidza mabhizinesi akakodzera kuti anyatso tarisisa mamiriro ekudzokorora emitemo yePFAS, uye kuronga kugadzirwa uye hunyanzvi hwezvinhu zvine musoro kuti ive nechokwadi chekuti zvigadzirwa zviri kutevedzera. Isu tine timu yehunyanzvi tekinoroji yekutevera zvichangobva kuitika mumayero ekutonga uye kukubatsira mukugadzira iyo yakanyanya kukodzera chirongwa chekuyedza. Ndapota inzwa wakasununguka kutibata nesu.
Nguva yekutumira: Zvita-28-2023
