Dr. Rohnda Patrick just did a great episode on PFAS, microplastics, and other environmental toxins in food and water. Tap water tends to have less of these PFAS/nano plastics than bottled water via degradation of the bottle. Topo Chico is especially problematic (nothing to do with the bottle).[0]
[0]: https://www.youtube.com/watch?v=HTzw_grLzjw&t=2s