Plastics are they safe?

I've recently being reading stuff about plastics and food. I am growing tomatoes and melons in large plastic containers. I store rainwater in large plastic that get warm in the sun.
 I have started growing vegetables in raised beds and ceramic pots. There is some way to go on this.

It would appear there are substances in plastics that mimic endocrine actions. they are called endocrine disruptors

Link Bisphenol A