Harmful receipt chemicals spark concern

Major supermarket chains Coles and Woolworths say their paper receipts are BPA-free. (Sam Mooy/AAP PHOTOS) (AAP)

Retailers are increasingly switching to digital receipts and other alternatives to avoid harmful chemicals commonly used in receipt paper.

Bisphenol A, or BPA as it's more commonly known, has already been phased out of baby bottles in Australia for its potential impacts on fertility, heightened cancer risk and other health concerns linked to endocrine-disrupting chemicals.