[catman67]

That's why I always go back to the old data, when regulatory levels were more risk-based. We are just as safe using older regulatory levels.

The newer ones are politically driven or generated to justify regulatory programs (if you are already safe, there is no more work to do).

[FreedomPoster]

Someone noted to me in one of these threads that in his experience, setting of PELs seems driven by the available measurement technologies moreso than actual documented human/animal effects.