1) Not all Pfas are equal. Individually, many chemicals were below safe limits. But if you weight each one by its specific toxicity and add that up *combined* risk was in the red for far more samples.
Ran this weighted test on remote lochs in @theferret.scot: www.theferret.scot/orkney-highl...
Concerning levels of 'forever chemicals' were found in water bodies across Scotland, including lochs in Orkney, the Highlands and Outer Hebrides.
