This research examined how pollution from a large nickel-copper smelter affects wild food (berries, mushrooms, fish and game) that local people collect and eat in the border regions between Norway, Finland and Russia. While most wild food was found to be safe for consumption, some mushrooms contained elevated levels of toxic metals, especially when collected close to the smelter. Impacts on everyday life: • People gathering wild mushrooms should avoid collecting them very close to the smelter • Most wild berries, fish and game from the region are safe to eat in moderate amounts • Local residents should be aware that different types of wild food accumulate different levels of toxic elements • Regular monitoring of wild food safety helps protect public health in industrial regions • Understanding contamination patterns helps people make informed choices about where to gather wild food