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News from Macdonald Lab

Tracy Tipping
Our state fire marshal recently determined that a normally locked gate in a chain-link fence surrounding the roof of our lab should be left unlocked as a fire exit. This brought about a discussion of possible radiation hazard to the public since previously, the public did not have access to the roof of our lab. Some quick calculations and dosimetery determined that the maximum dose to the public under normal operating conditions would be approximately 0.3 mSv per year (well within the allowable 1.0 mSv annual dose to the public). However, a university official insisted that we err on the side of caution and install special hardware on the gate to allow exit from within the fenced area without a key while keeping the area off limits to the public.

This is not an earth-shattering event, but just a reminder that our HP activities have consequences in other areas as well. For those of you that do a combination of HP activities along with other safety and health activities, you are probably already aware of this fact. But for those of us that work exclusively within the HP realm, we sometimes should step back and look at the "big picture" while doing our HP activities. You may find that a "simple" HP activity may be causing a tremendous hardship on another EH&S professional. Looking at the big picture and making adjustments may help avoid such conflicts.