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Description
Oil and grease come from machinery, equipment and boats.
Why
does it cause pollution?
When oil and grease get into water, they stick to
things like fish and macro-invertebrates, like dragonfly larvae, and
micro-invertebrates like copepods and diatoms.
The oil and grease are toxic, or poisonous, to these organisms. These organisms form the base of the food chain, so small oil
and grease spills can harm local food chains.
What
land uses are the source of this type of pollution in the B-T Basin?
Causes
in the Barataria and Terrebonne Basins are unknown. In some
other places they might be caused by boat
dumping or urban
runoff.
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