Environmental and Social Management Framework for Tanzania ...

IMPACTS DURING OPERATION AND MAINTENCE
1. Impacts on Soil
Chemicals and detergents used in the laboratories during operation may be
disposed on soil, thereby contaminating the soil. This is likely to take place in
areas where there are no appropriate waste disposal systems and facilities.
2. Impacts on Surface Water
Water contamination may occur from laboratory waste, detergents and chemicals
used in the laboratories during operation. Water contamination from waste,
detergents and chemicals may cover large areas and may be long term.
3. Air Contamination
Air contamination may also take place from TB infected material along the
patients’ or TB specimen areas of movement. Chances of air contamination from
TB infectious waste material or persons may be high, long term and may cover
large areas where infected people or materials will be found.
4. Health and Safety
TB, infections are likely to occur where people are exposed to infectious material
or persons. These infections may occur:
• in places where infected persons live together with others in crowded
situations;
• in hospitals and laboratories where TB patients seek medical attention and
give out specimens for examination;
• during transportation of specimens form the sample collection to delivery
points;
• during sample culturing and examination in labs; and
• during handling and disposal of laboratory waste.
Impacts on safety on workers may arise from accidents in the laboratory and
risks of fire. Health impacts could be major, long term and fatal, and may cover
wide areas due to peoples’ mobility.
IMPACTS DURING DECOMMISSIONING
Decommissioning entails closure of the facilities and services. Consideration of
impacts of decommissioning is important so that on closure of these facilities, due
consideration is given to mitigate impacts from abandoned structures and
equipment. Appropriate consideration should also be given to staff that may be made
redundant. Decommissioning impacts are likely to be minor, localised and short
term.
1. Surface water
Quarry mining voids, if left open, would lead to pools of stagnant water. Ground
levelling and backfilling of quarry mining sites is likely to affect natural drainage flow
pattern and general flow of surface water and runoff. These activities are also likely
to cause water siltation.
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