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Few will have heard of PCBs - polychlorinated biphenyls. The chemicals were banned in the late 70s amid fears about their toxicity. Recent estimates suggest that Europe produced anything between 299,000 and 585,000 tonnes of PCBs. The US produced even more...Scientists say more must be done to eliminate the chemicals, which have a devastating impact on marine life and can end up in the food chain.Click on the link below to read the full story.
