Apropos of the breakdown of plastics, I posted recently about my son and his horror of tap water. He has been trying for years to get me to have a water distilling machine like his (think steam and hot kitchen). He recently sent me a photo of the sludge that is left after distilling. He pointed out a whitish substance that has recently appeared in it. My son-in-law,who is involved in medical research, on being shown it said "Oh, that'll be the micro-plastics in the water supply. My head is still in the sand.