Microplastics are unavoidable in the cities, as well as Chlorine and Fluorine to purify the water. The tap water is most definitely contaminated with trace amounts of other chemicals in the purification process of grey water.
These foreign chemicals may be negligible in the short term of a few years, but if you're cooking, cleaning, showering, drinking, and breathing in the vapors of this water for your entire life, there are unavoidably going to be some effects.
