I just don't get the conclusion of all of the biosolids articles. They all point to upstream sources as problems then claim we should do something about them only in biosolids. Our wastewater reflects what we allow in our houses and bodies.

Why doesn't it ever go like this: "Micro plastics are bad. Our wastewater is telling us that we are creating micro plastics in our homes from the products we buy and use. Let's stop producing products that force people to make micro plastics."

My guess - the cost of wastewater treatment falls on all of us. We pay for it all, and it isn't cheap. The most effective option is source control, so let's make cradle to grave responsibility for the megacorp producers and watch how fast harmful products get yanked.