ukudungeka — isiZulu
Ukungcola komkhathi noma ukudungeka kwamanzi emithonjeni, okubangelwa wukumunceka nokugqagqana kwemisebe yokukhanya ngenxa yezibhidi nezinhlayiya eziqinile noma eziwuketshezi ezintantayo. Ukudungeka kwamanzi ngelinye lamazinga avamise ukuhlolwa yizinkampani eziphakela amanzi, futhi amanzi adungekile ahlanzeka kalula nje ngokuthi kufakwe kuwona amakhemikhali athile angenabo ubungozi. Ukungcola komkhathi kakhulu kuyinto engalungiseki futhi kwezinye izikhathi kungabambezela ukuhamba kwamabhanoyi.