A recent study has evidenced that at 47.8 per cent household waste is the leading cause of pollution in Nyabarongo River.
The study showed that household waste mainly composed of rubbish, garbage and sewage enter Nyabarongo River through the ravine Nyabugogo swamp that connects to it. .
Further, the study also established that the absence of soil erosion control accounts for 24.4 per cent of the factors that pollute the river.
At a rate of 10 per cent, industrial waste is ranked 3rd in polluting Nyabugogo swamp
The industrial effluents and by-products are discharged in the water bodies by a number of industries in the Kigali City wetland system including a textile industry, the iron industry which manufactures iron sheets, paint factories and the Kabuye sugar factory among others, the report noted.
