This video segment adapted from LOKE Films and the Arctic Monitoring and Assessment Programme describes how people in the Arctic are exposed to high levels of toxic contaminants, such as mercury and PCBs. Learn how these persistent organic pollutants travel through the food chain and pose serious health risks to humans who consume contaminated animals. Examine how different populations are affected, and how people who eat traditional foods high on the marine food chain (such as polar bear, seal, and some types of whale) are most at risk.