Kunyamula katundu m'ndege kumaphatikizapo zoletsa zonyamula katundu kuti zitsimikizire chitetezo cha ndege komanso kutsatira malamulo apadziko lonse lapansi. Zinthu zazikulu zoletsedwa ndi izi:
Katundu wowopsa: Zophulika, zinthu zoyaka (monga mafuta, mowa wopitilira 70%), mpweya woponderezedwa, zinthu zowononga, mankhwala oopsa, ndi zinthu zotulutsa ma radio ndizoletsedwa padziko lonse lapansi.
Zida ndi zinthu zoopsa: Mfuti, zipolopolo, mipeni yoyendetsedwa, ndi zofananira ndizoletsedwa kuyenda pandege.
Mabatire a Lithium: Awa ayenera kunyamulidwa-pachikwama chokha ndipo sangatumizedwe ndi katundu chifukwa cha ngozi zamoto.
Zamadzimadzi ndi mowa: Zakumwa zokhala ndi mowa wochepera 24% sizikhala ndi malire a kuchuluka kwake, pomwe zapakati pa 24% ndi 70% zimangokhala malita 5 pamunthu; ndende yopitilira 70% ndiyoletsedwa. Zakumwa zina monga zonunkhiritsa zimayikidwa pa 500ml pachidebe chilichonse.
Kuphatikiza apo, zinthu zoletsedwa monga ufa wosamata, zinthu zowonongeka zomwe zimafunikira kuwongolera kutentha, ndi zinthu zachinyengo zimatha kukumana ndi malire a ndege. Onetsetsani nthawi zonse ndi zonyamulira za ndondomeko zatsatanetsatane musanatumize.