ABSTRACT

After a recent nuclear accident (Chernobyl), it became

evident that there was a serious need for reliable mea-

surements of radionuclides in a variety of foodstuffs.

This chapter of the handbook summarizes information

on measurements of radionuclides in food. There is a

compilation of guidelines for collecting, preparing, and

analyzing basic food for radionuclides of interest. Since the 1960s the focus of a number of interna-

tional organizations, e.g., FAO, UNSCEAR, WHO,

and WMO, has been on methods of radiochemical

analysis. In response to a request from the Member

States, the Fallout Radioactivity Monitoring in the

Environment and Food (MEF) Program was establi-

shed by the IAEA, and an excellent guidebook called

Measurement of Radionuclides in Food and the Environ-

ment (1) was prepared. Together with other documents

(2-5), this guidebook was used as background material

for the guidelines. This chapter does not contain detailed instructions

for the measurement of the respective radionuclides in

individual foodstuffs because they are very extensive,

but we give references. It is also recognized that the

reliability of these recommended methods depends

largely on the laboratory techniques. Such a labora-

tory requires special counters and methods for radio-

activity measurements. To obtain reliable results the

measurements must be based on standards and cali-

brations provided either by the central specialized

laboratory, or on interlaboratory comparisons.