Table 1 Exposure and Population Statistics for Counties in Southeastern Michigan Study Area
| Â | Genesee County | Huron County | Lapeer County | Sanilac County | Shiawassee County | Tuscola County | Six Counties Combined | Remainder of Michigan |
|---|---|---|---|---|---|---|---|---|
Number of Groundwater Samples Analyzed | 2,768 | 2,068 | 2,419 | 729 | 822 | 445 | 9,251 | 23,691 |
% of Population Drinking Groundwater | 50% | 84% | 82% | 95% | 100% | 100% | 68% | 44% |
Population-weighted Mean Arsenic Concentration (μg/L) | 10.42 | 12.21 | 19.26 | 9.97 | 6.66 | 8.08 | 11.00 | 2.98 |
Population-weighted Median Arsenic Concentration (μg/L) | 8.48 | 3.50 | 11.98 | 4.61 | 3.91 | 3.32 | 7.58 | 1.27 |
Population Size | 430,459 | 34,951 | 74,768 | 39,928 | 69,770 | 55,498 | 705,383 | 8,589,914 |
White Race (%) | 78% | 99% | 98% | 98% | 98% | 97% | 86% | 74% |
Residing in a Rural Area (%) | 21% | 90% | 86% | 100% | 66% | 88% | 44% | 30% |
Lived in Same County 5 Years Earlier (%) | 90% | 89% | 78% | 82% | 84% | 85% | 87% | 83% |
Population (above age 25) with at Least a Bachelor's Degree | 13% | 9% | 9% | 8% | 10% | 8% | 11% | 17% |
Persons Below Poverty Level (%) | 16% | 15% | 8% | 14% | 11% | 13% | 14% | 13% |
Median Household Income | $31,030 | $21,852 | $35,874 | $23,107 | $30,283 | $27,374 | $30,332 | $31,020 |