PUBLIC HEALTH ENGLAND / SCIENCE PHOTO LIBRARY PUBLIC HEALTH ENGLAND / SCIENCE PHOTO LIBRARY
Radiation levels in food. Researcher mixing food samples in a food processor to make a homogenous (uniform) sample. The food is then freeze-dried to form a powder for analysis. Diet samples are taken to monitor the dietary intakes of nutrients and contaminants for large groups of the population. Radioactive contamination may arise from nearby nuclear power stations or natural sources, which can cause serious health problems.
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