Old sofas may harbour banned flame retardants, which have been implicated in causing cancer.KATE FREDRIKSEN / SHUTTERSTOCK
'Chemicals designed to slow household firescontinue to be found in worrying quantities in US homes, long after some of them have been banned because of suspected links to cancer and other conditions.
The most controversial chemicals — used to fire-proof sofas and foam baby products such as high-chair seats — are now on the way out, but a new generation with sometimes unknown health effects has taken their place, warn researchers.'
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