Richard J Kinch wrote:
Chlorine also does not turn hair green.

Do not be a sucker for superstitions about chlorine. These ideas are
promoted by (1) people trying to sell you non-chlorine products and
(2) neurotics who find some invisible cause for every discomfort in
life.

Google [Chlorine+green+hair] = 568,000 hits.

Something's going on.