Heavy metal contamination of river and dam water is a worrying problem in South Africa. Though lead levels in the Hartebeespoort and Vaal dams have declined, cadmium levels have risen slightly over recent years.
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action or later. Please see Debugging in WordPress for more information. (This message was added in version 6.7.0.) in /home/coderaco/domains/codera.co.za/public_html/wp-includes/functions.php on line 6121Heavy metal contamination of river and dam water is a worrying problem in South Africa. Though lead levels in the Hartebeespoort and Vaal dams have declined, cadmium levels have risen slightly over recent years.