My bottles of conditioner are labelled “will bind to radioactive particles”, and “will not bind to radioactive particles.”
But yes, let’s take showers with water that is likely contaminated. Smart, real smart.
Actually, It is exactly right. The water right after a blast will not be contaminated. During the first 24 hours to 10 days it is extremely important to stay inside. It is a half life thing, The majority of radioactive particle dissipate quickly, The next marker is seven months.
That was going to be my next point, LOL! It's gotta be a spoof .... if not someone's incredibly stupid for having written that.