EPA yakaburitsa mutemo wakarongwa pasi peToxic Substances Control Act (TSCA) unorambidza kushandiswa kwakawanda kwe dichloromethane (inozivikanwawo se dichloromethane kana DCM). Dichloromethane ikemikari ine mashandisirwo akasiyana-siyana emaindasitiri nemabhizimisi. Ichi chinhu chinonyungudutsa chinoshandiswa mumaindasitiri akasiyana-siyana. Chinoshandiswawo kugadzira mamwe makemikari, kusanganisira mamwe mafiriji. Maindasitiri akanganiswa anosanganisira:
Zvichienderana nesimba rayo pasi peChikamu 6(a) cheTSCA, EPA yakaona kuti dichloromethane inokonzera njodzi isina musoro kuhutano kana nharaunda. Mukupindura, EPA yakaburitsa mutemo wakarongwa musi wa3 Chivabvu 2023: (1) kurambidza kugadzirwa, kugadzirwa, uye kugoverwa kwemethylene chloride kuti ishandiswe nevatengi, uye (2) kurambidza kushandiswa kwakawanda kwemethylene chloride mumaindasitiri. Mutemo wakarongwa weEPA waizobvumira FAA, NASA neDhipatimendi reDziviriro, pamwe nevamwe vagadziri vemafiriji, kuramba vachishandisa methylene chloride. Pamashandisirwo aya asara, mutemo wakarongwa waizoisa mitemo yakasimba munzvimbo yebasa kuti ideredze kusangana nevashandi.
EPA inofungidzira kuti mutemo uyu uchakanganisa kushandiswa kwemethylene chloride pagore muUnited States. Zvinokurudzirwa kumisa kugadzirwa, kugadziriswa, kugoverwa uye kushandiswa kwedichloromethane mukati memwedzi gumi nemishanu. Sezvakaitika paEPA yazvino uno, nguva pfupi yekubuda kwemethylene chloride inogona kunge isina kukwana kusangana nezvinodiwa nemamwe maindasitiri, saka panogona kunge paine zvimwe zvinetso zvekutevedzera mutemo. . Zvirinani, mutemo uyu unogona kuva nemigumisiro yakakura kumatambudziko ekugadzira uye ekutengesa sezvo makambani achiongorora kushandiswa kwemethylene chloride uye kutsvaga dzimwe nzira dzakakodzera.
EPA ichagamuchira mashoko pamusoro pemutemo wakarongwa musi wa3 Chikunguru, 2023. Maindasitiri akakanganiswa anofanira kufunga nezvekugona kwavo kutevedzera mitemo iyi, kusanganisira kukanganisa kwekutengeserana kwemakambani nezvimwe zvinhu zvisina kufambiswa zvakanaka.
Chiziviso: Nekuda kwehunhu hwekuvandudzwa uku, ruzivo rwuri pano runogona kusashanda mumamiriro ese ezvinhu, uye harufanirwe kushandiswa pasina zano repamutemo rakanangana nemamiriro ako chaiwo.
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