Table 7.
Summary statistics (μg/kg) of the levels iAs in different samples of drinking water
| N | 25th percentile | 50th percentile | Mean | 75th percentile | 95th percentile | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| LB | UB | LB | UB | LB | UB | LB | UB | LB | UB | ||
| Drinking water, unspecified | 1,715 | 0 | 1.0 | 0 | 2.0 | 2.0 | 2.9 | 3.5 | 3.5 | 8.2 | 8.2 |
| Tap water | 593 | 0 | 1.0 | 0 | 2.0 | 1.7 | 2.7 | 3.2 | 3.4 | 8.0 | 8.0 |
| Well water | 945 | 0 | 1.0 | 0 | 2.0 | 1.5 | 2.7 | 2.0 | 4.0 | 8.0 | 8.0 |
| Bottled water, unspecified | 522 | 0 | 0.7 | 0 | 1.0 | 0.6 | 1.2 | 0.2 | 2.9 | 4.0 | 4.9 |
| Still mineral water | 1,895 | 0 | 1.0 | 0 | 1.0 | 1.0 | 2.1 | 1.4 | 4.0 | 4.4 | 4.7 |
| Carbonated mineral water | 1,597 | 0 | 0.6 | 0 | 1.0 | 0.8 | 1.7 | 1.0 | 2.0 | 4.6 | 5.0 |