Bottled water May be one of the most abused food products. There is almost no attempt to prevent exposure to sunlight and heat on the retail end.
“There is almost no attempt to prevent exposure to sunlight and heat on the retail end.”
And the effect of heat on the plastic bottle and what it might be “adding” to the water contained therein.
Take a look at this:
http://pubs.acs.org/doi/abs/10.1021/es061511+