Table 1. Concentrations of fibrates and their metabolites in source water and drinking water samples in China.
| DWTPa | Sample typeb | Concentration (ng/L) and Residual ratio (%)c |
||||
|---|---|---|---|---|---|---|
| BFe | GFf | FFg | CAh | FAi | ||
| A | SW | ndd | 0.18 | nd | 0.42 | nd |
| DW | nd | 0.08 | nd | 0.35 | nd | |
| RR | — | 47.4 | — | 83.5 | — | |
| B | SW | nd | 0.16 | 0.05 | 0.21 | nd |
| DW | nd | 0.07 | nd | 0.07 | nd | |
| RR | — | 42.8 | 0 | 35.5 | — | |
| C | SW | 0.61 | 0.13 | 0.06 | 0.47 | nd |
| DW | 0.32 | 0.11 | nd | 0.34 | nd | |
| RR | 52.5 | 84.2 | 0 | 71.5 | — | |
| D | SW | 0.40 | 0.18 | 0.04 | 0.44 | nd |
| DW | 0.37 | 0.08 | nd | 0.34 | nd | |
| RR | 91.7 | 42.5 | 0 | 71.5 | — | |
| E | SW | nd | nd | 0.08 | nd | nd |
| DW | nd | nd | nd | nd | nd | |
| RR | — | — | 0 | — | — | |
| F | SW | 0.86 | 1.53 | 0.05 | 0.90 | 0.32 |
| DW | 0.62 | 0.56 | nd | 0.80 | 0.25 | |
| RR | 72.2 | 36.8 | 0 | 89.2 | 78.1 | |
| G | SW | 0.43 | 0.07 | nd | 0.31 | nd |
| DW | 0.30 | 0.06 | nd | 0.24 | nd | |
| RR | 70.6 | 86.8 | — | 75.1 | — | |
| H | SW | 0.68 | 0.29 | 0.07 | 0.66 | nd |
| DW | 0.56 | 0.14 | nd | 0.42 | nd | |
| RR | 82.4 | 48.3 | 0 | 63.1 | — | |
| I | SW | 0.58 | 0.49 | nd | 0.49 | nd |
| DW | 0.43 | 0.26 | nd | 0.36 | nd | |
| RR | 73.0 | 52.5 | — | 72.8 | — | |
| J | SW | nd | nd | nd | 0.37 | nd |
| DW | nd | nd | nd | 0.21 | nd | |
| RR | — | — | — | 56.8 | — | |
aDWTP, drinking water treatment plant; bSW, source water; DW, drinking water; cRR, residual ratio in drinking water after water treatment; dnd, not detected (less than the detection limit); eBF, bezafibrate; fGF, gemfibrozil; gFF, fenofibrate; hCA, clofibric acid; iFA, fenofibric acid.