Hot liquid releases more BPA in PC bottles - study

30 January 2008 11:56  [Source: ICIS news]

LONDON (ICIS news)--Hot liquids significantly increase the amount of harmful chemical bisphenol A released from polycarbonate (PC) plastic bottles, according to a study released on Wednesday.

 

University of Cincinnati scientists found that BPA was released 55 times more rapidly when PC drinking bottles were exposed to hot water - regardless of whether the bottles were new or used.

 

“Previous studies have shown that if you repeatedly scrub, dish-wash and boil polycarbonate baby bottles, they release BPA. That tells us that BPA can migrate from various polycarbonate plastics,” said study author Scott Bletcher.

 

Widely used in products such as reusable water bottles, food can linings, water pipes and dental sealants, BPA has been shown to affect reproduction and brain development in animal studies.

 

Belcher’s team analysed used polycarbonate water bottles from a local climbing gym and purchased new bottles of the same brand from an outdoor retail supplier.

 

The study found that prior to boiling water exposure, the rate of release from individual bottles ranged from 0.2 to 0.8 nanograms/hour. This increased to a range of 8-32 nanograms/hour after exposure.

 

By: Mark Watts
+44 20 8652 3214

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