Hacker News new | ask | show | jobs
by judge2020 1020 days ago
This already happens in high-risk areas with the likes of the FDA requiring approval for drugs, since they are more likely to be immediately and/or grossly harmful as a direct result. We don't have evidence that many of these chemicals or even microplastics are directly responsible for any long-term physiological effects (but we know for certain that they exist and are being ingested and distributed throughout the body), so it's not like people are dropping dead from (mis)use of forever chemicals.
1 comments

Huh? There are tons of evidence that PFAS and microplastics are toxic.
Can you reference some papers that directly link it to toxicity or health problems?
The first link is "High exposure to perfluorinated compounds in drinking water and thyroid disease" but the conclusion in the abstract is

> In total, 16,150 individuals had ever been exposed. The hazard ratios did not indicate any excess risk of hyperthyroidism among those with contaminated water. For hypothyroidism, the risk of being prescribed medication was significantly increased among women with exposure during the mid part of the study period (but not men). However, the association with period of exposure was non-monotonic, so the significance is considered to be a chance finding. Our research was limited by the relatively simple exposure assessment.

The second one as well

> No association between serum PFAS and fecal zonulin was found. In conclusion, the present study found no consistent evidence to support PFAS exposure as a risk factor for IBD.

…every time…