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South African Journal of Science

versión On-line ISSN 1996-7489
versión impresa ISSN 0038-2353

Resumen

RAMUDZULI, Marubini R.  y  HORN, André C.. Arsenic residues in soil at cattle dip tanks in the Vhembe district, Limpopo Province, South Africa. S. Afr. j. sci. [online]. 2014, vol.110, n.7-8, pp.1-7. ISSN 1996-7489.

Arsenic-based compounds have been used for cattle dipping for about half a century to combat East Coast Fever in cattle in South Africa. The government introduced a compulsory dipping programme in communal areas to eradicate the disease in 1911. Concern has been raised regarding the ecological legacy of the use of arsenic-based compounds in these areas. We investigated the incidence of arsenic residue in soil at 10 dip sites in the Vhembe district of Limpopo Province, South Africa. We found high levels of arsenic contamination at a depth of 300 mm at some sites. Control samples indicated that these high arsenic levels are the result of the application of inorganic arsenic. Variation of arsenic concentrations is attributed to duration of exposure to the chemical, soil properties and distance from the dip tank. Concerns are raised regarding the structural condition of the dip tanks, encroaching villages and possible health threats to the human population in the area.

Palabras clave : East Coast Fever; arsenic; cattle dip tanks; soil; Vhembe district.

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