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Re: Be-7 detections in ambient air samples





It depends upon what you mean by elevated levels of Be-7, but certainly Be-7
would not be unusual to find on an air sample.  Check NCRP 94 for much of the
information you are looking for, Be-7 is listed in the index.

Dave Simpson
Univeristy of Nebraska - Lincoln
dsimpson1@unl.edu







Bill Lohner <Bill.Lohner@epa.state.oh.us> on 03/05/99 10:10:52 AM

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During routine gamma analyis of high volume particulate air samples (originally
looking for Co-60 and Cs-134), our laboratory has detected somewhat elevated
readings for Be-7.

The only natural source we've been able to fing would be from upper atmosphere
interactions with N and O.  Does anyone have any information regarding the
presence of Be-7 in ambient air samples, such as possible sources, "normal
concentrations", etc.?

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