In the US that might exclude the NY to DC sector, but towards New Haven, and
in Japan and other countries - there are many adults exposed to 30-40 mG
averages while they are on the train. Commuting on such a line 5 days a
week could result in exposures comparable to many utility workers.
Perhaps one problem with such a suggestion - is that such exposures are not
in either of the categories we usually discuss - occupational or
residential.
With little interest in the US in new epi, perhaps our colleagues in Japan
or Europe might be persuaded to undertake some feasibility study - perhaps
of female breast cancer among rail commuters. Such a study would not suffer
from the rare disease problems which continue to be troublesome in looking
at leukemia or brain cancer among workers. Preliminary calculations which I
made for SW Connecticut suggested that the fraction of the population which
were rail riders was adequate to detect a breast cancer effect if it were
present.
Thurman Wenzl
Usual disclaimers - these are my own thoughts.
And thanks to Lou Slesin for his continued excellent work.