Dust deposition assessment at a Gold Mine
Village in the West Rand: Gauteng Province of
South Africa
Accepted 21st
May 2020
M. Mpanza1 and R Moolla2
1Department of Mining Engineering and Mine Survey, University of
Johannesburg, 55 Beit St, Doornfontein, Post Office Box 17011, Johannesburg,
2028, Gauteng, South Africa. 2School of Geography, Archaeology and Environmental Studies,
University of the Witwatersrand, Private Bag X3,Braamfontein, 2050,Johannesburg,
2028, Gauteng, South Africa.
The windy season brings numerous community complaints for gold mining companies
situated in the Witwatersrand due to windblown dust from tailings storage
facilities (TSFs). For communities encroaching onto TSFs, windblown dust is
perceived as a health hazard and an environmental challenge. In a study
conducted in 2017 by the Lawyers for Human Rights, the community of a gold mine
village perceives TSF6 and other surrounding tailings storage facilities which
are partially rehabilitated to be a health and socio-economic threat. Since
2013, when a close Gold Mining Company was liquidated, this community has been
complaining about dust fallout. To validate the claims made by the community,
this study reports on the dust deposition impacts, and respiratory illnesses
risk posed by wind-blown generated dust. The study conducts an air quality
assessment using dispersion modelling of windblown dust. Surface material from
the TSFs was sampled, analysed for silica and heavy metal content using X-ray
fluorescence (XRF) and inductively coupled plasma- mass spectrometry (ICP-MS).
This study finds dust fallout, PM10, high in silica and uranium content which
could potentially pose health threats to the surrounding community. The study
further shows that dust deposition is the highest in July-October, with TSF6
posing a nuisance while TSF1 being a potential health threat owing to its
particle size distribution for the surrounding gold mine village community.
Potential receptors of the air pollution by dust in this study area include
neighbouring property owners, business owners of the nearby shopping centre, the
school and the clinic. This study further finds that sudden mine closure due to
mine liquidation results in unrehabilitated tailings storage facilities which
exacerbates dust deposition.
Key words:TSFs, windblown dust, respiratory
illnesses, community, heavy metals, PM10.
This is an open access article
published under the terms of the
Creative Commons Attribution
License, which permits unrestricted use, distribution, and
reproduction in any medium, provided the original work is
properly cited.
Cite this article as:
Mpanza M, Moolla R (2020). Dust deposition assessment at a Gold Mine Village in
the West Rand: Gauteng Province of South Africa. Acad. J. Environ. Sci.
8(6): 081-095.