Autoimmune Diseases / 2014 / Article / Fig 2

Research Article

Mercury, Autoimmunity, and Environmental Factors on Cheyenne River Sioux Tribal Lands

Figure 2

Map of arsenic sampling conducted by USEPA and CRST DENR. Concentrations of arsenic in sediment exceeding 100 ppm are marked with a burst pattern. Exposure-relevant sites are labeled with activities frequently conducted in those areas.

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