“Whatever happened, the damage is done. We can’t do anything about it.'
Hide AdSpeaking at an EFRAC hearing, he said capital dredging, which is being done to pave the way for South Bank Quay, should be paused until an independently verified map of all the locations containing pyridine can be drawn up.
Dr Caldwell said the chemical is extremely difficult to detect in water, but it can remain stable in an oxygen-free environment like sediment buried in the river bed for years. “We were very much caught by surprise, we were not expecting it to be as toxic,” he said. “We were seeing crabs dying within a matter of hours.”
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