Abstract
An investigation of the gamma emitting radionuclides present in selected farm produce of Oka, Quebec, was conducted. In the three categories of foodstuffs, such as cheese, apple and maple sugar, obtained from the immediate vicinity of niobium mill tailings piles, distinguishable radioactivity from natural sources and worldwide fallout was evident. Except for lead-214 and radium-226, the tailings spectrum showed a typical pattern of natural background value. With the exception of lead-212, uranium-235, thallium-208 and actinium- 228, all radionuclides in farm produce were near or below levels of detection. There was no significant difference in the radiation level of food samples grown in control areas.
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