Table 3.
Concentrations of a benzodiazepine (oxazepam) in water, damselfly tissue and fish tissue after seven days of exposure (±1 s.e.), bioconcentration factor (BCF) for exposed damselfly and fish tissue, and bioaccumulation factor (BAF) for exposed and unexposed fish eating exposed prey. LOQ, below limit of quantification.
| measure | N | oxazepam | BCF | BAF |
|---|---|---|---|---|
| water (µg l−1) | 37 | 2.1 ± 0.04 | — | — |
| damselfly tissue (µg kg−1) | 18 | 5.8 ± 2.0 | 3 | — |
| unexposed fish, unexposed prey (µg kg−1) | 9 | LOQ | LOQ | LOQ |
| unexposed fish, exposed prey (µg kg−1) | 10 | 0.6 ± 0.1 | — | 0.3 |
| exposed fish, unexposed prey (µg kg−1) | 6 | 25.7 ± 1.5 | 12 | — |
| exposed fish, exposed prey (µg kg−1) | 9 | 27.6 ± 2.0 | — | 13 |