Bungwe Loona za Chitetezo cha Zachilengedwe lapereka lingaliro loletsa kugwiritsa ntchito methylene chloride, mankhwala omwe amati ndi oopsa pa thanzi komanso opha anthu, pofuna kuteteza thanzi la anthu.
Lingaliroli liletsa kugwiritsa ntchito dichloromethane pazochitika zonse za ogula komanso pazinthu zambiri zamafakitale ndi zamalonda. Dichloromethane imagwiritsidwa ntchito mu aerosol degreasers, zotsukira maburashi opaka utoto ndi zokutira, zomatira zamalonda ndi zomatira, komanso kupanga mankhwala ena m'malo opangira mankhwala.
Kuletsa kumeneku kunayambitsidwa ngati gawo la Toxic Substances Control Act, yomwe inapatsa EPA mphamvu yofuna malipoti, kusunga zolemba, ndi kuyesa, pakati pa zoletsa zina. Mu 2019, EPA inaletsa kugwiritsa ntchito dichloromethane kwa ogula poichotsa pa zochotsa utoto.
Anthu osachepera 85 afa chifukwa chogwiritsa ntchito mankhwala amenewa kuyambira mu 1980, malinga ndi EPA. Bungwe la Environmental Protection Agency linati milanduyi ikuphatikizapo antchito omwe amagwira ntchito yokonza nyumba. Bungweli linati pali anthu "ambiri" omwe akumana ndi mavuto aakulu komanso a nthawi yayitali pa thanzi lawo atagwiritsa ntchito methylene chloride. EPA yapezanso zotsatirapo zoyipa pa thanzi lawo, kuphatikizapo poizoni wa mitsempha, zotsatira za chiwindi, ndi khansa chifukwa chopuma mpweya komanso kukhudzana ndi khungu.
Bungweli linapeza kuti dichloromethane imayambitsa "chiwopsezo chosafunikira cha kuvulaza thanzi malinga ndi momwe ikugwiritsidwa ntchito" chifukwa cha zoopsa kwa ogwira ntchito omwe akhudzidwa mwachindunji kapena mwanjira ina ndi mankhwala, ogula omwe akugwiritsa ntchito mankhwalawo, ndi anthu omwe akhudzidwa ndi mankhwalawo.
"Sayansi yomwe ili kumbuyo kwa methylene chloride ndi yomveka bwino, ndipo kukhudzana ndi methylene chloride kungayambitse mavuto aakulu pa thanzi komanso imfa, zomwe ndi zoona kwa mabanja ambiri omwe ataya okondedwa awo chifukwa cha poizoni woopsa," adatero msonkhano wa woyang'anira EPA Michael S. Regan. womwe unalengeza izi. "Ndicho chifukwa chake EPA ikuchitapo kanthu popereka lingaliro loteteza thanzi la ogwira ntchito poyambitsa njira zowongolera zovuta kuntchito zomwe zingaletse kugwiritsa ntchito mankhwala ambiriwa ndikuchepetsa kukhudzana ndi methylene m'mikhalidwe ina yonse."
EPA inati cholinga cha chiletso chomwe chikuperekedwa ndikuteteza anthu ku chiopsezo ndikulola methylene chloride kugwiritsidwa ntchito pokhapokha pamalo ogwirira ntchito omwe ali ndi malamulo ambiri, zomwe zingachepetse kufalikira kwa dichloromethane. Kupanga, kukonza ndi kufalitsa dichloromethane kudzatha mkati mwa miyezi 15 ikubwerayi. Pomwe lingalirolo linaletsa mankhwalawo, kusanthula kwa EPA kunapeza kuti zinthu zina "zotsika mtengo komanso zogwira mtima zofanana ... nthawi zambiri zimapezeka."
"Kuletsa kumeneku komwe kwaperekedwa kale kukuwonetsa kupita patsogolo kwakukulu komwe tapanga pakukhazikitsa njira zatsopano zotetezera chitetezo cha mankhwala komanso kutenga njira zomwe zachedwa kwambiri kuti titeteze bwino thanzi la anthu," adatero Reagan.
Kerry Breen ndi mkonzi wa nkhani komanso mtolankhani wa CBS News. Malipoti ake amayang'ana kwambiri zochitika zaposachedwa, nkhani zatsopano komanso kugwiritsa ntchito mankhwala osokoneza bongo.