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DOC of the filtered water, concentration of organic carbon extracted using SPE and the efficiency of the extraction procedure
| DOC filtered water (mg C L−1) | DOC concentration of extracts (mg C L−1) | Extraction efficiency (%) | |
|---|---|---|---|
| Upstream | 3.39 | 1.50 ± 0.04 | 42.11 ± 0.5 |
| Sewage outfall | 3.19 | 1.29 ± 0.05 | 40.49 ± 1.7 |
| Downstream | 3.45 | 1.40 ± 0.06 | 40.34 ± 0.8 |
| Blank | N/A | 0.18 ± 0.02 | N/A |
