http://www.fpp.co.uk/Letters/Auschwitz/ ... 90204.html
So if half a million human beings were murdered in mortuary 1 of Krema 2 this building would have experienced at very least two tonnes [of cyanide via Zyklon-B]. What if anything that implies for concentration levels I have no idea.
This means there were no homicidal gassings as alleged as there is no corresponding cyanide residue which would be there.... if the story was true.
for more see:
The Rudolf Report
Expert Report on Chemical and Technical Aspects
of the ‘Gas Chambers’ of Auschwitz
part C. - Chemical Analysis of Brick and Mortar Samples, sec.4 of:
'Critique of Claims Made by Robert Jan Van Pelt':