Research Article
Study on the Relationship between Manganese Concentrations in Rural Drinking Water and Incidence and Mortality Caused by Cancer in Huai’an City
Table 3
The comparison of superscale ratio of Mn in drinking water.
| Variable | Superscale | Qualified | | | | % | | % |
| Counties | | | | | | | Chuzhou county | 46 | 80.70 | 11 | 19.30 | 3.86 | 0.15 | Jinhu county | 46 | 77.97 | 13 | 22.03 | Xuyi county | 27 | 64.29 | 15 | 35.71 | Periods | | | | | | | High flow period | 45 | 53.57 | 39 | 46.43 | 45.62 | 0.00 | Low flow period | 74 | 100.00 | 0 | 0.00 | Sources | | | | | | | Surface water | 41 | 87.23 | 6 | 12.77 | 10.66 | 0.01 | Shallow groundwater | 44 | 80.00 | 11 | 20.00 | Deep groundwater | 34 | 60.71 | 22 | 39.29 | All | 119 | 75.32 | 39 | 24.68 |
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