Researchers say toxic chemicals pose a pollution risk as oil and gas companies are allowed to leave pipelines to rot
Decaying oil and gas pipelines left to fall apart in the North Sea could release large volumes of poisons such as mercury, radioactive lead and polonium-210, notorious for its part in the poisoning of Russian defector Alexander Litvinenko, scientists are warning.
Mercury, an extremely toxic element, occurs naturally in oil and gas. It sticks to the inside of pipelines and builds up over time, being released into the sea when the pipeline corrodes.
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