- Styrene can be ‘reasonably anticipated to be a human carcinogen’
- Conclusion reached by 10 leading medical experts in the U.S.
- They stress further research is needed before chemical is regulated
- American Chemistry Council says styrene has passed most stringent safety tests to be used in food and drink packaging
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A chemical used in foam cups and disposable food containers may cause cancer, scientists have warned.
Styrene can be ‘reasonably anticipated to be a human carcinogen’, the National Research Council in the U.S. said yesterday.
The conclusion was reached by a team of 10 experts in toxicology, chemistry and medicine.
Styrene – the chemical used in foam cups and disposable food containers – can be ‘reasonably anticipated to be a human carcinogen’, the National Research Council in the U.S. said yesterday
‘[However] ‘I think it’s important to keep in mind that this is a hazard
assessment,’ Dr Jane Henney, who chaired the research council’s
committee of experts, told Newsday.Â
The declaration means there is ‘scientific evidence
suggesting that styrene causes cancer, but there may be alternative explanations, such as chance, bias or confounding factors’, explained Dr Henney, who led the U.S.
Food and Drug Administration during the Clinton era.
‘Our report says this chemical could be a problem, but a full
risk-assessment on dose, exposure, quantification and further
characterization of the risk would need to be done before one would
think about regulation in this area,’ she added.
Dr Henney also stressed that the term ‘reasonably anticipated to be a human carcinogen’, was far from emphatic – unlike, say, factors such as tobacco.Â
And that the Council’s latest ruling was in the line of that three years ago, when concerns were raised about the possible links between styrene and cancer.Â
But industry experts say regulatory agencies have deemed polystyrene safe for use in contact with food and drink
The National Research Council is a major policy body and
division of the National Academies, which includes the Institute of
Medicine, the National Academy of Science and the National Academy of
Engineering.
The American Chemistry Council has previously defended styrene, saying: ‘Polystyrene plastic has been used in foodservice products – foam coffee cups, salad bar takeout containers, cutlery – for more than five decades.
‘Polystyrene has been reviewed by regulatory agencies that have deemed it safe for use in contact with food.
‘For example, polystyrene meets the stringent standards of the U.S. Food and Drug Administration and the European Commission/European Food Safety Authority for use in packaging to store and serve food.’
Earlier this month British scientists
warned that more than 170 dangerous chemicals – including styrene – are legally used in the
production of food packaging.
The Food Packaging Forum warned the toxic substances, which were
found to cause cancer and inflict changes on genes, could end up in the
food they contain.
But the Food Standards Agency moved to
reassure consumers, explaining all food packaging falls within European
standards and the presence of the chemicals are of no concern if they
are used within the ‘limits or restrictions’ set for their use.
The study, published in the journal Food Additives and Contaminants, discovered around 175 chemicals with varying affects.
They
found the substances interfered with sperm production, caused genital
malformations and disrupted hormone production in the body.
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