The studies show that common assumptions about mercury exposure should be reexamined, and that native people in the region are more vulnerable to harm, probably because of their greater reliance on river fish, but also perhaps because their healthcare and standard of living is not as high.
When compared to non-native individuals, children and adults living in native villages were found to have much higher mercury exposures. Among tested children, mercury levels were 2.5 times greater, on average, in native communities.
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