Gukora impapuro zitanga alkali sulfide, soda ya caustic nizindi alkalis mugihe cyo guteka no guteka.Ibikoresho bya sufuru nka H2S, methyl mercaptan, dimethyl mercaptan, hamwe nizindi myuka yangirika nabyo biva mugihe cyo guhumeka, kandi gaze ya chlorine nayo ikorwa mugihe cyo guhumeka.Agace k’uruganda gakoresha metero kare 120.000 zometseho amashanyarazi, gakoreshwa cyane cyane mukurwanya ruswa yo hanze yinzu hejuru yinzu.
Ibicuruzwa bishya byakorewe ubushakashatsi no guteza imbere uruganda rwacu - urupapuro rwometseho amashanyarazi rukoreshwa cyane mubyuma bya metallurgie, salinisation, ifumbire, gucapa no gusiga amarangi, inganda zikora imiti, ubukerarugendo, amashanyarazi, guta, chlor-alkali, ibyuma bidafite ferro nizindi nganda.Byakoreshejwe cyane mubikorwa byitumanaho ryiza cyane ninganda za gisirikare.
Turemeza ko imyaka iramba irenze imyaka icumi kumashanyarazi.