Nyanzvi kubva kumayunivhesiti maviri - Iowa neWashington - vakasarudza kuongorora kuti chikafu chakakangwa chinokanganisa sei vakadzi vanopfuura makumi mashanu. Vakaongorora mararamiro nemamiriro ehutano evakadzi zviuru zana vane makore makumi mashanu kusvika pamakumi manomwe nepfumbamwe, kucherechedzwa kwakagara kwemakore akati wandei. Munguva iyi, vakadzi makumi matatu nemumwe vakafa. Vanopfuura zviuru mazana masere nevasere vavo vakafa nematambudziko emoyo, vamwe zviuru zvitanhatu negomarara. Zvakazoitika kuti njodzi yekufa kwekutanga yaibatanidzwa nekudyiwa kwemazuva ese kwezvikafu zvakakangwa: mbatatisi, huku, hove. Kunyangwe mumwe anoshandira zuva akawedzera mukana wekufa nguva isati yakwana ne50-100 muzana.
Vakadzi vadiki havana kubatanidzwa mumuenzaniso. Asi zvirokwazvo, chikafu chakakangwa chinovakanganisa nenzira yakafanana. Izvo hazvisi pasina chikonzero kuti chirwere chemwoyo chinoramba chiri chimwe chezvikonzero zvikuru zvekufa kwekutanga.
“Pakukangwa, kunyanya muoiri isingashandiswe kekutanga, macarcinogenic polycyclic hydrocarbons anogadzirwa muchigadzirwa. Uye kushandiswa kwenguva refu kwezvigadzirwa zvakadaro kunogona kukonzera mamota akaipa, "anowedzera oncologist-endocrinologist Maria Kosheleva.
"Kuchinja mabikirwo aunoita ndeimwe yenzira dziri nyore dzekuwedzera hupenyu hwako," nyanzvi dzinopedzisa, izvo zvandisingatombodi kuita nharo nazvo.