Reply #10: Found a Swedish study

[KT2000]

that examined the chemical bis chloromethyl ether (BCME)
This is a very toxic chemical that is created when chloride ions mix with formaldehyde in the air. It has one of the shortest latency periods for cancer. It is a problem and must be controlled in textile factories and fertilizer factories. Europe allow zero exposure for workers and the US allows one part per billion.
The researcher noted that the chemical can form and disappear and form again. It is difficult to read it in the environment for that reason. She warns of the potential for exposure to that chemical from many daily sources.

I posit that many women get lung cancer from this exposure. Formaldehyde is everywhere in the home and they are usually the ones using chlorine products in the home.

BCME causes small cell lung cancer.
Women usually get small cell lung cancer.

Just an idea.