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National Eutrophication Monitoring Programme

What eutrophication is :

"Eutrophication is the process of excessive nutrient enrichment of waters that typically results in problems associated with macrophyte, algal or cyanobacterial growth" - NEMP implementation manual.

The state of eutrophication in South Africa :

Many South African impoundments exhibit high nutrient enrichment with consequent eutrophication related problems. Eutrophication monitoring information is available for more than 80 impoundments in South Africa. However, many impoundments do not have regular eutrophication monitoring programmes, and the main aim of the NEMP is to fulfil this requirement.

While not an environmental resource management programme in itself, the NEMP provides information for supporting a strategy to control eutrophication in South Africa (Walmsley, 2003).

NEMP products

The NEMP provides periodic assessments of eutrophication in South Africa:



Programme Manager : Mr Elijah Mogakabe
NEMP Scientist : Ms Noloyiso Mbiza
NEMP Scientist : Mr Sazi Mthembu


The success of the NEMP is not only dependent on the efforts of Resource Quality Monitoring sub-directorate, but the support of many other groups and individuals. The Resource Quality Information sub-directorate does scheduling, consolidation of sample reception, database development, data administration and data visualisation. The Analytical Services sub-directorate conducts all analyses for the samples arriving at RQIS. Many Water Control Officers, Regional offices and other local stakeholders assist with the vast number of samples not collected by RQIS technical staff.


The NEMP originates from the former Trophic Status Project, which aimed at monitoring seven catchments, selected because of their high nutrient export load. Implementation of NEMP began in 2002 and it monitors sites throughout South Africa, providing reports on trophic status and related problems, including algal growth, cyanobacterial blooms and excessive water plant growth.

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Last update of this page 2019-07-22 12:26