i highly doubt it would be anything that could be measured. regardless, think of all the plastic exposure we get on a daily, if not hourly, basis.
if really concerned, there are varying grades of plastic, several that are "food grade". forget the specific acronyms, but you can find them w an o/l search. peace.
all houses in florida use PVC.....except i believe their hot water lines....i was a water well driller in Florida for many years....we used PVC casing for all residential wells and even many city wells.....not to mention all the plumbing from the well to the house....
PVC is only bad i belive if you burn it, the smoke from it can be toxic....so no making bongs or steam rollers with it.....