Kodi ndi zotetezeka ku pulasitiki ya microwave - ngakhale popanda BPA kapena phthalates?
Tikukhala m'dziko lodzala ndi mankhwala. Iwo ali mmadzi athu, mpweya wathu, nthaka yathu - ndipo, motero, iwo ali mu matupi athu.
Zina mwa mankhwala oopsya kwambiri mu ntchito ya tsiku ndi tsiku zili mu pulasitiki, zakuthupi zomwe zimapanga moyo wambiri wamakono. Kodi timadzivulaza bwanji ku mankhwala omwe amapanga pulasitiki, ndipo ndi otetezeka bwanji?
Monga ngati kuwonjezera ku nkhaŵa, akatswiri ena amaopa kuti tikawotchera chakudya mu pulasitiki mu microwave, timakulitsa kwambiri kuwonetsetsa kwathu ku mankhwala omwe angakhale ovulaza m'maplasitiki ena.
Kodi ndizotetezeka ku pulasitiki ya microwave?
Kodi Pulasitiki ndi chiyani?
Palibe pulasitiki imodzi: Mawuwo amatha kufotokoza zonse kuchokera ku polyvinyl chloride (chigawo chomwe chili ndi mapaipi oyera a PVC) kuti acrylic agwiritse ntchito kwa Bakelite kamodzi kawiri kawiri. Mapulasitiki angapangidwe ndi zinthu zakuthupi kapena zopangidwa ndi mankhwala.
Kuopsa kwa pulasitiki yapadera ndi ntchito ya zomwe zili mmenemo, komanso momwe zilili zolimba. Popeza mapulasitiki ambiri salowerera madzi, amakhala osasunthika komanso amadzimadzi.
Zowonjezera ziwiri, komabe, zimaoneka pakati pa zida zowopsya monga zoopsa zaumunthu zowopsa: bisiphenol-A, kapena BPA, ndi mapulaneti. BPA ndizowonjezera zowonjezera, zopangira plastiki (monga CD ndi mabotolo a madzi).
Kuphatikizanso, kumagwiritsidwa ntchito m'mapulastiki kuti apangitse kukhala ofatsa ndi olephereka (kuganiza za rubber duckies). Zonsezi ndi BPA zimakhulupirira ndi asayansi ambiri kuti amatha kusokoneza matendawo - nthawi zina amatchedwa hormone disruptors.
Mahomoni omwe BPA ndi mauthenga omwe amawoneka kuti akusokoneza ndi estrogen. Zakhala zikugwirizana ndi kunenepa kwambiri mufukufuku wina. Ndipo ma fetusi amwamuna omwe amadziwika kuti ali oterewa amatha kukhala ndi zilema zoberekera kuphatikizapo hypoplasia (urethra).
Lipoti lina linapeza kuti amayi akamakhala ndi ma ARV ambiri, nthawi zambiri amatha kuchita masewera olimbitsa thupi ndi anyamata, monga magalimoto ndi kusewera, "malinga ndi Sayansi.
BPA ndi Phthalates mu Food
Ngakhale BPA ndi mauthenga amapezekanso paliponse - BPA imakhala yambiri yolembetsa ndalama zowonjezera - kutengeka kwaumunthu kumaganiziridwa kuti kumachitika mwa chakudya. Zowonjezera zonse zapulasitiki zili m'zitsulo zamagetsi, mapulasitiki ena ndi pulasitiki.
Koma kodi mapulastikiwa ndi owopsa motani tsiku ndi tsiku? Sikuti aliyense amavomereza pankhaniyi.
Chifukwa chakuti mapulastiki ambiri apangidwa kuti akhale okhazikika, sizingakhale kuti kukhudzana kulikonse ndi chakudya kapena zakumwa kumabweretsa kuwonjezeka kwakukulu kwa BPA kapena kupweteka. Kukonza Nyumba Zabwino kunayesedwa zakudya zambiri kuti zikhale ndi zopangira pulasitiki, zapeza kuti pafupifupi imodzi mwa izo inali ndi zinthu zina zamaplasitiki, ngakhale kutentha kwa microwave.
"Mwachizoloŵezi, chakudya chilichonse chimene mumagula mu chidebe cha pulasitiki chomwe chimayikidwa kuti chiyike mu microwave chayesedwa ndikuvomerezedwa kuti chiteteze ntchito," George Pauli, wotsogolera wa Sayansi ndi Policy ku chipatala cha FDA's Food and Safety and Applied Zakudya zabwino, adauza WebMD.
Mwina mwatsatanetsatane, webusaiti ya American Plastics Council imati, "Bisphenol A ndi imodzi mwa zipangizo zowonongeka kwambiri zomwe zikugwiritsidwa ntchito masiku ano. Kulemera kwa umboni wa sayansi kumatsimikizira kuti chitetezo cha BPA chimapereka umboni wotsimikizika kuti palibe chifukwa cha nkhawa zaumunthu kuchoka ku BPA. "
Choncho kodi ndi zotetezeka ku pulasitiki ya microwave?
Malinga ndi Rolf Halden, wotsogolera malo a Center for Environmental Security ku Biodesign Institute ku Arizona State University, ndalama za BPA ndi zamatsenga zomwe zimayambitsa chakudya zimadalira mtundu wa pulasitiki womwe umayikidwa mu microwave, nthawi yomwe imakhala yotentha komanso mkhalidwe wa chidebecho.
Zakale zapulasitiki zowonongeka, ndi zomwe zimatenthedwa kwa nthawi yaitali, zimakhala zoopsa kwambiri, Halden adauza Wall Street Journal.
Halden ananenanso kuti mafuta olemera mu kirimu ndi batala sayenera kutenthedwa m'mapulasitiki. "Zakudya zamatenda zimadya kwambiri mankhwala awa oopsa mukamawotcha," adatero.
Mmene Mungapeŵere BPA ndi Mafitali mu Pulasitiki
Njira yoyamba yopewera matendawa ndi BPA ndi kugwiritsa ntchito zida zopanda zakudyazi: Galasi, chitsulo ndi zitsulo zina ndizokhalitsa, ndipo ngati galasi ikhoza kukhala microwave.
Anthu ena - kuphatikizapo asayansi ochita kafukufuku - peŵani kuyanjana ndi ndalama zolembera ndalama, chifukwa zina mwazipangizozi zimapangidwa ndi njira zosindikizira zowonjezera ndipo zimakhala ndi mabungwe akuluakulu a BPA.
Mapulasitiki omwe ali ndi chizindikiro "7" amakhala ndi ma BPA, ndipo mapulastiki omwe amawerengedwa ndi nambala "3" amakhala okhudzidwa kwambiri. Koma chifukwa zizindikirozi sizigwiritsidwa ntchito posonyeza zowonjezera mu pulasitiki, sizikhoza kudalira kwenikweni. (Palibe kugwirizana, mwachitsanzo, ngati "mapulastiki" asanu ali ndi BPA.)
Ngakhale kuti palibe chifukwa choti anthu ambiri azichita zinthu mopitirira muyeso kuti asatengere mapulasitiki onse, zingakhale zanzeru kwa anthu ena, makamaka ana ang'onoang'ono ndi amayi omwe ali ndi zaka zakubadwa.
Chifukwa zotsatira za mankhwala osokoneza mahomoni zimatchulidwa kwambiri pakulera fetus ndi ana aang'ono kwambiri, ndizodziwika kuti tichite zomwe tingathe kuteteza anthu omwe ali pachiopsezo ku zotsatira zovulaza zamapulasitiki.