Yes the I agree the state of the world is more important than the state of your fish tank 8O
Not enough residuals to cause alarm in your system in any case.
I found the recent article appropriate for me, but I would like to offer some additional advice I tried to reverse this situation.
I have a 140 gallon mixed reef for 5-6 years. It is well set up and easy to maintain in the past and I took husbandry for granted as the tank continued to grow...
It is manufactured with PFOA that is now listed as a possible carcinogen by the US EPA.
The greens Version:
http://www.ewg.org/reports/pfcworld/
And the mans version:
http://www.pfoa-facts.com/