Hi Chris
Our in-house software FM-CLaRAT2 will reproduce the CLEA1.04 values
for cadmium exactly if the averaging time is set to 74years for AC1-18
rather than the 75years we might expect. There is no such problem for
different range intervals. I have just advised the EA of the
discrepancy in exposure duration but I doubt there has been time to
look into this yet. Since the error is very small it only makes a
practical difference in benchmarking different codes. FM-CLaRAT uses
an iterative solution for integrating pathways as explained by
Mengfang.
Regards,
Jonathan
Dr Jonathan Welch
Associate Director
AECOM Environment
Tel. 0191 2246500
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