TABLE 2.
Anion concentrations, total organic carbon, inorganic carbon, and total iron and copper contents of the different waters used in this study
| Compound (unit of measurement)a | Concn in: |
||
|---|---|---|---|
| Swiss tap water | Indian groundwater | Indian tap water | |
| Fe (μg/liter) | 99.6 | 77.8 | Below detection limit |
| Cu (μg/liter) | 7.7 | 4.8 | 7.3 |
| NO3− (mg/liter) | 3.3 | 4.6 | 52.1 |
| SO42− (mg/liter) | 44.0 | 53.3 | 91.3 |
| Cl− (mg/liter) | 10.7 | 92.9 | 81.1 |
| Br− (mg/liter) | Below detection limit | 0.1 | 0.1 |
| NO2− (mg/liter) | Below detection limit | Below detection limit | Below detection limit |
| PO43− (mg/liter) | Below detection limit | Below detection limit | Below detection limit |
| TOC (mg/liter) | 1.8 | 8.4 | 4.7 |
| IC (mg/liter) | 33.3 | 56.4 | |
a
TOC, total organic carbon; IC, inorganic carbon. The detection limit was 1 μg/liter for iron and copper, 0.4 mg/liter for nitrate, 0.8 mg/liter for sulfate and chloride, 0.1 mg/liter for bromide, and 0.2 mg/liter for nitrite and phosphate.