Water quality of the Blue Nile at Khartoum, Sudan, before complete filling of the Grand Ethiopian Renaissance Dam

Physico-chemical variables were monitored biweekly for the Blue Nile at Khartoum between July 2017-June 2019. The aim was to document the present status of water quality at Khartoum before complete filling of the Grand Ethiopian Renaissance Dam (GERD). Physico-chemical parameters within acceptable limits recommended by WHO for drinking water included pH (7.2-10.8), temperature (13.7-30.4 degrees C), conductivity (137-281 mu S cm(-1)), total dissolved solids (75-141 mg l(-1)), total residue (5-3194 mg l(-1)), alkalinity (93-176 mg CaCO3 l(-1)), dissolved oxygen (3.5-10.9 mg l(-1)), nitrite-nitrogen (更多