The last time I needed an x-ray for a broken bone, I asked the x-ray tech for a lead vest to protect my torso and groin area.
He told me that it was pointless because I would be exposed to more background radiation throughout the course of my normal life. He did not understand that ionizing radiation damage is cumulative and that there is no safe limit for exposure. Annoyed with my request, he gave me the vest anyway.
Is there a safe limit for exposure to PFAs? I would readily concede that the risk to an individual is probably negligible, but like in the case of x-rays, population-level risks probably do exist for even the smallest exposure.
That said, I would also support eliminating all sources of PFAs, just like we tried to do with CFCs and asbestos.
He told me that it was pointless because I would be exposed to more background radiation throughout the course of my normal life. He did not understand that ionizing radiation damage is cumulative and that there is no safe limit for exposure. Annoyed with my request, he gave me the vest anyway.
Is there a safe limit for exposure to PFAs? I would readily concede that the risk to an individual is probably negligible, but like in the case of x-rays, population-level risks probably do exist for even the smallest exposure.
That said, I would also support eliminating all sources of PFAs, just like we tried to do with CFCs and asbestos.