Concentration is usually the biggest concern- "the dose makes the poison", so to speak.
Unfortunately, the "forever" moniker is earned because these chemicals don't readily break down. Bio-accumulation is inevitable, which makes it that much harder to determine what a "safe" level of exposure is.
Even so, I don't think the jury is out yet on what the effects of exposure to many of them even are, though several seem to influence hormone levels at least.
Unfortunately, the "forever" moniker is earned because these chemicals don't readily break down. Bio-accumulation is inevitable, which makes it that much harder to determine what a "safe" level of exposure is.
Even so, I don't think the jury is out yet on what the effects of exposure to many of them even are, though several seem to influence hormone levels at least.