Pollution
causing environmental havoc
Fourteen
tons of dead mud fish have been removed in a week from the Loskop
dam, north of Middelburg, reported Beeld newspaper on Saturday
18 August 2007. At that stage there were fears that the dam might
have turned toxic within a few days.
Beeld
quotes Albert Driescher, official at the Loskop dam nature reserve
as speculating that the fish are dying from eating the sediment,
which has been polluted by heavy metals. Heavy metals in the soil
are dissolved in the water by acid mine drainage, but industrial
waste containing nickel, vanadium and magnesium contribute to
the pollution.
Elise
Tempelhoff of Beeld reports
that the Loskop dam is bubbling with methane gas, like a glass
of "bubbling Eno".
Earlier
an official of the Department of Water Affairs confirmed that
a crocodile has died in the Loskop dam, recently as a result of
aluminum poisoning.
Water pollution in the Witbank area directly contributes to the
sorry state of the Loskop dam.
Aluminum
poisoning occurs when acid mine drainage causes heavy metals to
dissolve in the water. It affects the fish, the crocodiles and
the ecology as a whole.
The National Water Act of South Africa prioritises water for basic
human needs and water for the protection of aquatic ecosystems
above water for any other use. This it does by defining the reserve
as the quality and quantity of water required to satisfy basic
human needs and to protect aquatic ecosystems. The Minister must,
when determining the Reserve for a water resource, ensure that
adequate allowance is made for each component of the Reserve.
In other words, there must be enough water (in reserve) for basic
human needs and aquatic ecosystems, before water rights can be
granted for any other type of use.
- Marika Van Der Walt