> Urban stormwater runoff typically requires treatment for the removal of suspended solids and nutrients [...] However, regulations are lagging behind when it c

> Urban stormwater runoff typically requires treatment for the removal of suspended solids and nutrients [...] However, regulations are lagging behind when it comes to microplastics and tyre wear particles. The question is less about how big of a deal it is, and kpre about whether suspended plastic bits should be allowed to stay when other particles are required to be removed.