You forgot rain. Maybe one day people will remember we're just sharing one small planet, the air, the water, the food supplies, ... all the shit you dump/burn ends up in your food or water eventually
That article's only citation is a review paper, and it doesn't answer my question or substantiate your claim. It only covers how much PFAS is found in rainwater, and not how it got there.
The sources cited includes https://doi.org/10.1016/j.watres.2020.116685, which is paywalled, but the snippet of the conclusion that is shown indicates that a possible major cause is industrial emissions:
> As local sources were determined to be significant, the results imply that local action can have an impact on PFAS contamination in precipitation. A three-way ANOVA model determined that functional group, chain length, and location were significant predictors of PFAS concentrations
If you can get the full text I'd be very interested in reading about it.
Sure, its probably at its highest concentrations right where its being manufactured or used heavily, but in the end its migrating just about everywhere.
> n Figure 1B, the levels of PFOS in rainwater are shown to often exceed the US EPA drinking water health advisory for PFOS, except for two studies conducted in remote regions (in Tibet and Antarctica).
I don't think there are a lot of industrial emissions in Antarctica.
But still a lot of things do, pesticides following the rain cycles is a good example. We're killing the biodiversity and ourselves with it. We already almost entirely rely on synthetically amending fields with petrol byproducts to feed ourselves, tomorrow we might have to manually pollinate crops when insects won't be enough to do the job.
PFAS are a problem, co2 is a problem, but we have dozens of other very big problems that are partially, if not entirely, obscured
> Nearly 50% of the nitrogen found in human tissues originated from the Haber–Bosch process. Thus, the Haber process [enabled] the global population to increase from 1.6 billion in 1900 to 7.7 billion by November 2018.
Future archaeologists will wonder that we first fouled our nest from edge to edge with lead in gasoline, and then there's that radioactive layer, and following immediately after the forever chemicals layer.