[ RadSafe ] Thorium mineral ALI

[Kai Kaletsch]

Friends,

I am looking for a default inhalation ALI value to use for natural Thorium 
in equilibrium with its progeny as it occurs in ores. One could calculate a 
value from the values published in ICRP 61, but I was hoping someone had 
looked at more realistic size distributions that would occur in earth moving 
type applications.

Thanks in advance,
Kai


Kai Kaletsch
Environmental Instruments Canada Inc.