Scientists warn 90% receipts contain cancer-causing chemicals
Could receipts cause cancer? Scientists warn 90% of the papers doled out by shops ‘contain hormone-disrupting chemicals thought to be carcinogenic’
- Receipts are made of ‘thermal paper’ which nearly always contains BPA
- Experts behind the findings have warned to handle receipts as little as possible
- The chemical has already been linked to infertility, autism, obesity and diabetes
Up to 90 per cent of receipts contain cancer-causing chemicals, experts have warned.
Receipts which use ink that fade over time are made with ‘thermal paper’ which contains BPA (bisphenolA).
Studies have shown the chemical can lead to hormone-dependent cancers, and has previously been linked to infertility, autism, ADHD, obesity, type 2 diabetes, premature births and early onset of puberty.
There are already concerns about the public being exposed to BPA, which is often found in plastics.
We should avoid storing receipts in purses, wallets, or cars, according to Professor Nicolás Olea, from the University of Granada, Spain.
Experts at the University of Grenada have warned we should handle receipts as little as possible after 90 per cent of them were found to be made of cancer-causing chemicals
BPA is added to receipts to make their writing darker without using ink, and is also found in plastic water bottles and food containers.
International researchers, led by the University of Granada, analysed 112 thermal paper receipts and tickets from Brazil, Spain and France.
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‘We can recognize this kind of paper because it instantly turns black if we put it close to a heat source like, for example, a match,’ Professor Olea said.
HOW TO REDUCE YOUR BPA AND BPS RECEIPT EXPOSURE
More than 90 percent of receipts contain BPA, research in January 2018 from the Michigan-based non-profit organisation The Ecology Center found.
The researchers recommend people reduce their BPA or BPS receipt exposure by:
- Choosing electronic receipts if available
- Folding receipts so the printed side is facing inwards. The back is not typically coated in chemicals
- Keeping an envelope in their wallets to place receipts. This avoids them rubbing against money
- Not handing receipts to children
- Washing their hands after touching receipts
- Disposing of receipts in the trash over recycling to avoid contaminating recycled paper
- Cashiers should only print receipts when asked, wear gloves, wash their hands thoroughly and avoid touching their mouths
More than 90 per cent of the receipts collected in Brazil and Spain had BPA – but only half of the receipts collected in France presented BPA, the findings, published in Environmental Research, showed.
The French government has taken action to the reduction of the use of that chemical compound in thermal paper since 2014.
The researchers warn that we should be careful about handling the receipts.
‘For example, tickets should not get in contact with food – for instance, meat or fish – while unpacking it in the kitchen,’ Professor Olea said.
‘Moreover, we should not crumple the tickets to throw them in the trash, play with them, write notes on them, or store them in cars, purses or handbags.
‘In short, we should manipulate this kind of tickets as little as possible.
‘They are easily identified by the customer since they are those receipts that, after some time, lose what they have printed on them and, when you are going to return the trousers you bought, the cashiers tell you that they cannot see anything.
‘Very often, the only thing you find is a fine white powder that comes off when taking them out of the handbag or purse. BPA is, precisely, that white powder that sticks to your fingers.’
Scientists have sought alternatives to gradually replace BPA in an array of items.
BPS was designed as a replacement after mounting concerns over the plastic compound’s effect on human health.
France has used BPS as a replacement in its receipts.
However, scientists aren’t on board with this chemical either, believing that BPS is also a hormone disruptor.
‘Unfortunately, BPS is also an endocrine disruptor, and its environmental persistence is greater than that of BPA, so it’s not a valid option,’ Professor Oleo said.
The researchers suggested people ‘reject’ paper receipts until public health measures are taken, noting that the Spanish government promised to remove BPA from its receipts by 2020.
Similar findings were published by Michigan-based non-profit organisation The Ecology Center in January 2018.
The team analysed 207 paper receipts from a variety of businesses collected between January and April 2017, including nationwide grocery and homeware stores, gas stations, theaters, libraries and small independent businesses.
Past research reveals cashiers and waiting staff can handle as many as 30 receipts an hour, and after a shift, have significantly higher BPA and BPS levels in their blood and urine than the average person.
‘The protection of hundreds of thousands of young people working as cashiers in supermarkets and other stores is not as strictly implemented as it should,’ Professor Oleo added.
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