Research Article
Water Carcinogenicity and Prevalence of HPV Infection in Esophageal Cancer Patients in Huaihe River Basin, China
Table 2
The information of the sample point in the Huaihe River Basin of Shenqiu County, Henan province.
| Sample type | Water volume (L) | Constant volume (mL) | Collected samples |
| River water | 10 | 0.5 | A tributary of the river | Shallow well water | 10 | 0.3 | About 10-meter depth | Deep well water | 10 | 0.5 | About 40-meter depth |
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