More than 2,400 birds were killed in two chemical leaks off the south coast in February and April. The RSPCA say it's one of the worst marine pollution incidents in decades and was caused by boats discharging a substance called polyisobutene, also known as PIB, in the sea.
To date 18 species of birds have been affected, the majority being guillemots and most washed up in Dorset. The death toll exceeds that of the Napoli incident off the coast of Devon in 2007.
Adam Grogan from the RSPCA said: “The dumping at sea of this lethal chemical must be stopped.
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