It’s reasonable for people to take either approach: are microplastics more like asbestos or are they more like cellulose in terms of harm?
The answer being unclear means it makes sense to treat them, from a regulatory standpoint, closer to asbestos. It also makes sense to treat them as an unknowable and not regulate, because any alternative might be worse.
But it does point to there being a dearth in research and answers, and we should solve that as quickly as possible and maybe limit our exposure when viable, known to be non-toxic alternatives exist.
The answer being unclear means it makes sense to treat them, from a regulatory standpoint, closer to asbestos. It also makes sense to treat them as an unknowable and not regulate, because any alternative might be worse.
But it does point to there being a dearth in research and answers, and we should solve that as quickly as possible and maybe limit our exposure when viable, known to be non-toxic alternatives exist.