On
22 June 2000 Drs Lloyd and Lucas, the two international experts appointed
by Rössing
Uranium Ltd and the branch executive of the Mineworkers Union of Namibia
(MUN), announced in Windhoek the results of the Verification Study
on the effects of long-term, low dose radiation exposure.
The
purpose of the study was to confirm or refute the study findings
on radiation exposure of Dr Reinhard Zaire, the retained expert of
the MUN. Dr Zaire's findings suggested that there was a high incidence
of chromosomal aberrations among Rössing employees due to long-term, low dose radiation exposure.
The experts refuted Dr Zaire's findings and stated in the report: "The
overall conclusion is that the frequency of chromosomal damage in the
miners did not exceed that in the control subjects. This verification
study has therefore not confirmed the earlier report of Dr Zaire and
his colleagues."
In
responding to questions at the end of the presentation, the experts
emphasised that there were always risks associated with radiation
exposure. Although the levels of radiation at Rössing were extremely
low, employees must always follow the established standard procedures.
Commenting
on the results Rössing Management said: "The results confirmed
that our health, safety and environment monitoring systems are working
and do not miss anything. This does not mean that we must in any way
be complacent. On the contrary our aim in all areas of the operation
is to strive to operate to the best standards in the industry."
Chairman
of the local branch of the MUN, Erich Beukes, said: " The Union,
as a responsible leader of the workers, is concerned about the health
of its members. It is internationally recognised that there are occupational
related diseases in a workplace and the Company should now identify
and focus on these diseases."
The Ministry
of Health and Social Services approved a study protocol in compliance
with Namibian requirements for a study of this type. The honourable
Minister of Health and Social Services, Dr Libertine Amathila, and
Under-Secretary Dr Nestor Shivute were present at the announcement
of the results.
In order to
satisfy the research requirements of the Government of the United States,
an Institutional Review Board (IRB) was established to oversee the
implementation of the study, which was conducted over a period of two
years.
To
implement the study, blood samples were obtained from two groups,
namely the study group and the control group. The study group consisted
of ten Rössing employees with the highest accumulated radiation
dose, and the control group of ten individuals from communities at
the coast with no connection to Rössing. All participants were
screened for suitability to participate in the study according to
the selection criteria prescribed by the two experts and agreed by
the Rössing
and the MUN.
The two experts
are leaders in the field of radiation research and experts in the
same FISH technique that Dr Zaire applied in his studies. Dr David Lloyd
is of the National Radiological Protection Board (NRPB) based in
the United Kingdom and Dr Joe Lucas, one of the four scientists who developed
the FISH method at the Lawrence Livermore National Laboratory (LLNL)
in the United States of America. The use of their two independent
laboratories was to ensure the reliability of the research findings.
Rössing
and the MUN believe that the well-being of all employees is a key priority
to the success of the company and that any possible impact of any aspect
of the operation on employees' health must be fully investigated. This
study was therefore commissioned in support of this position.
The next step
for the two experts will be to get the report published in scientific
journals. Prior to publishing, scientific peer review will take place.
Dr Zaire, who
also attended the announcement of the study results in Windhoek, indicated
that he and his scientific colleagues would only be in a position to
comment on the results once these have been published in open literature.
Editor's
Note:
The Institutional Review Board (IRB), established in June 1998, consisted of
the following members:
Name
Title |
|
Institution |
Mr Asser Kapere |
|
Regional Governor (job title as at June '98) |
Clr Sam Nuuyoma |
|
Mayor of Swakopmund (job title as at June '98) |
Dr Wotan Swiegers |
|
General Practitioner |
Dr Norbert Forster |
|
Ministry of Health & Social Services |
Mr Elias Manga |
|
>Headmaster Swakopmund Secondary School |
Mr Herman Kinghorn |
|
Legal Practitioner |
Mrs Leonie Rencs |
|
Teachers' Resource Centre |
Mrs Beverly Figaji |
|
UNAIDS Counselling Support Project |
Mr
Pieter Hamman |
|
Former Analytical Chemist |
Mrs Elsje Winckler |
|
Medical Laboratory Services, Swakopmund |
Issued
on behalf of Rössing and MUN by:
Alwyn Lubbe
Communication Officer - Rössing Mine
Tel. 064 - 520 2382
Fax: 064 - 522 032
Other
contacts:
Erich Beukes
Chairman of the Rössing Branch Executive Committee
(BEC) of the MUN
Tel. 064 - 5202569
Cell: 081 122 5263