Health Canada guidelines are such that 200 ng/L (0.0002 mg/L) of PFOA is acceptable, and the City doesn't even report levels below 10 ng/L. I would wager they don't report values below that because they can't measure concentrations lower than that; certainly not down to the picogram (0.001 ng, or 0.000000001 mg/L)...
Yes, when water quality parameters are that low in concentration, most labs will reduce the concentration as <0.0001 mg/L (or “insert below threshold concentration here mg/L”) on their lab reports. In essence, the concentration was too low to correctly measure.
Love that I can come on CP, read an article and think “I dunno, sounds kind of crazy” and then there’s almost always at least one poster who is smart enough to calmly explain it away.
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Love that I can come on CP, read an article and think “I dunno, sounds kind of crazy” and then there’s almost always at least one poster who is smart enough to calmly explain it away.
Those are the ones you gotta watch out for.
They're trying to erase problems to pacify the populace.
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