|May 21, 2004,
as reported by just-food.com: Thousands of free-range
eggs have been recalled by Belgian supermarket chain Delhaize.
The eggs were removed from shelves after initial testing
showed abnormally high levels of cancer-causing chemicals.
The eggs tested were found to contain between two-and-a-half
and five times the normal level of PCBs, environmental
contaminants that have been linked to cancer, reported
Belgian food safety agency Afsca is investigating possible
causes of the contamination. PCBs are found in many
foods in low concentrations and are not thought to be
harmful to humans in small doses.