Not just California in a couple of city’s, look at the south and south east states on the map, major pollution across the states. Not counting cancer causing pollution but microplastics can build in your arteries and hearts like atherosclerosis.
https://www.usatoday.com/story/news/investigations/2024/03/21/pfas-forever-chemicals-drinking-water-epa/72972769007/?fbclid=IwAR1tSESEO9xCgBW0iMAUYfXeZCAGKEtJthPEt1cES38SfeB7ODVeUCf-z3g_aem_AaKptyF_vG6Aorl5tNWYoVbU32aWHzzjRBWB8hvCs3qOAYGFdyScqKnXGfwQI7PElwk9XZ58mvQtuRnlAYQY1sKr#:~:text=The%20man%2Dmade%20chemicals%20have,according%20to%20USA%20TODAY’s%20analysis