Re: Be-7 detections in ambient air samples -Reply

[LIPTONW@dteenergy.com]

See NCRP 50, "Environmental Radiation Measurements," Table 2-4 - "Cosmogenic 
radionuclides." 
 
The opinions expressed are strictly mine. 
It's not about dose, it's about trust. 
 
Bill Lipton 
liptonw@dteenergy.com 
 
You wrote: 
 
>> Bill Lohner <Bill.Lohner@epa.state.oh.us> 03/05/99 11:10am >>> 
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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