Mabotolo apulasitiki ofewa amaviika mazana a mankhwala m'madzi akumwa

Kafukufuku waposachedwapa wadzutsa machenjezo okhudza thanzi labwino la madzi akumwa kuchokera m'mabotolo apulasitiki, ndipo asayansi akudandaula kuti mankhwala omwe amalowa mumadzimadzi angakhale ndi zotsatira zosadziwika pa thanzi la munthu.Kafukufuku watsopano amafufuza zochitika za mabotolo ogwiritsidwanso ntchito, kuwulula mazana a mankhwala omwe amawatulutsa m'madzi ndi chifukwa chake kuwadutsa mu chotsuka mbale kungakhale lingaliro loipa.
Kafukufukuyu, wochitidwa ndi ofufuza a ku yunivesite ya Copenhagen, adaganizira za mitundu ya mabotolo ofewa ofewa omwe amagwiritsidwa ntchito pamasewera.
Mabotolo onse atsopano komanso ogwiritsidwa ntchito kwambiri a zakumwa anadzazidwa ndi madzi apampopi nthawi zonse ndipo anasiya kukhala kwa maola 24 asanayambe komanso atatha kudutsa chotsuka chotsuka chotsuka chotsuka. Pogwiritsa ntchito ma spectrometry a mass spectrometry ndi chromatography yamadzimadzi, asayansi adasanthula zinthu zomwe zili mumadzimadzi asanayambe komanso atatha kutsuka makina komanso pambuyo pa ma rinses asanu ndi madzi apampopi.
"Inali chinthu cha sopo pamwamba chomwe chinatulutsa kwambiri pambuyo potsuka makina," anatero wolemba wolemba wamkulu Selina Tisler. "Zambiri za mankhwala a m'botolo la madzi palokha akadalipo pambuyo pa kuchapa ndi makina owonjezera. Zinthu zoopsa kwambiri zomwe tinazipeza zidapangidwadi botolo lamadzi litayikidwa mu chotsukira mbale - mwina chifukwa chakuti kutsuka kumawononga pulasitiki, zomwe Zimawonjezera kutulutsa."
Asayansi anapeza zinthu zoposa 400 zosiyanasiyana m’madzi kuchokera ku zipangizo zapulasitiki, ndipo zinthu zoposa 3,500 zochokera ku sopo wochapira mbale.Zambiri mwa zimenezi ndi zinthu zosadziwika zimene ofufuza sanazizindikire, ndipo ngakhale mwa zimene zingadziŵike, pafupifupi 70 peresenti ya poizoni wawo sadziŵika.
"Tinadabwa ndi kuchuluka kwa mankhwala opezeka m'madzi pambuyo pa maola 24 mu botolo," anatero wolemba kafukufuku Jan H. Christensen. "Muli zinthu zambirimbiri m'madzi - kuphatikiza zinthu zomwe sizinapezekepo m'mapulasitiki, komanso zinthu zomwe zingawononge thanzi." Pambuyo potsuka mbale, pali zinthu zambirimbiri."
Zinthu zomwe asayansi adazipeza moyesera zikuphatikizapo photoinitiators, mamolekyu omwe amadziwika kuti ali ndi zotsatira zoopsa pa zamoyo, zomwe zingathe kukhala carcinogens ndi endocrine disruptors.Anapezanso zofewa za pulasitiki, antioxidants ndi nkhungu zotulutsa nkhungu zomwe zimagwiritsidwa ntchito popanga pulasitiki, komanso diethyltoluidine (DEET), yomwe imagwira ntchito kwambiri poletsa udzudzu.
Asayansi amakhulupirira kuti ndi zinthu zochepa chabe zomwe zapezedwa zomwe zinawonjezeredwa mwadala ku mabotolo panthawi yopangira kupanga.Zambiri mwa izo zikhoza kupangidwa panthawi yogwiritsira ntchito kapena kupanga, pamene chinthu chimodzi chikhoza kusinthidwa kukhala china, monga chofewa cha pulasitiki chomwe amakayikira kuti chidzasinthidwa kukhala DEET pamene chikuwonongeka.
Tissler anati: “Koma ngakhale ndi zinthu zodziŵika zimene opanga amaziwonjezera dala, ndi kawopsedwe kakang’ono kokha kamene kafufuzidwa,” anatero Tissler.” Chotero, monga wogula, simudziŵa ngati pali wina aliyense amene angawononge thanzi lanu.”
Kafukufukuyu akuwonjezera kafukufuku wochuluka wa momwe anthu amagwiritsira ntchito mankhwala ochuluka kwambiri pogwiritsa ntchito mankhwala apulasitiki, ndikuwonetsanso zambiri zomwe sizikudziwika m'munda.
Christensen anati: “Tikuda nkhaŵa kwambiri ndi kuchepa kwa mankhwala ophera tizilombo m’madzi akumwa.” Koma tikathira madzi m’chidebe kuti timwe, ife tokha sitizengereza kuwonjezera zinthu zambirimbiri kapena masauzande a zinthu m’madzimo.