Agriculture plays a major role in water contamination. Farming results in the release of large quantities of organic matter, agrochemicals, sediments, and drug residues. The use of fertilizers and excreta at farms cause nitrates and phosphates to enter bodies of water, leading to eutrophication.
How did water get contaminated?
Examples of human activities which may contaminate groundwater include agricultural and residential activities which involve fertilizers, pesticides and animal wastes, leaking fuel storage tanks, landfills and dumps, road salt, runoff from streets and parking lots, septic systems, disposal of sludge from municipal and …
What countries have poor sanitation?
Ethiopia, Uganda, Kenya and Tanzania, have by far the largest number of people in the region with no access to basic sanitation services, while countries like Eritrea, South Sudan and Ethiopia have the largest proportions and numbers of people practising open defecation.
What is the problem with water in Africa?
Introduction. Sub-Saharan Africa suffers from chronically overburdened water systems under increasing stress from fast-growing urban areas. Weak governments, corruption, mismanagement of resources, poor long-term investment, and a lack of environmental research and urban infrastructure only exacerbate the problem.
Why is Africa’s water important?
Water is a precious yet non-renewable resource. Yet in Africa, the same water can be a source of life and death. Water is not only the most basic of need but also at the centre of sustainable development and essential for poverty eradication. Water is intimately linked to health, agriculture, energy and biodiversity.
What bacteria is in water in Africa?
Bacterial contamination of drinking water is a major public health problem in rural areas of sub-Saharan Africa. Unimproved water sources are a major reservoir of Escherichia coli (E. coli) causing severe diarrhoea in humans.