Table 1.
Concentrations of cetirizine and citalopram measured in water samples and insect tissues
| Water (μg/L) |
Tissues (ng/g) |
|||||
|---|---|---|---|---|---|---|
| Experimental group | Start of exposure (Day 0) | End of exposure (Day 3) | After behavioral trials (Day 4) | Damselfly nymphs | Dragonfly nymphs | |
| Control | [Cetirizine] | < LOQ | < LOQ | < LOQ | < LOQ | < LOQ |
| [Citalopram] | < LOQ | < LOQ | < LOQ | < LOQ | < LOQ | |
| N = 6 | N = 3 | N = 3 | N = 6 | N = 17 | ||
| Cetirizine | [Cetirizine] | 12.86 ± 6.48 | 21.47 ± 2.92 | 6.64 ± 0.75 | 4.14 ± 1.22 | 4.04 ± 4.21 |
| [Citalopram] | < LOQ | < LOQ | < LOQ | < LOQ | < LOQ | |
| N = 6 | N = 3 | N = 3 | N = 6 | N = 18 | ||
| Citalopram | [Cetirizine] | < LOQ | < LOQ | < LOQ | < LOQ | < LOQ |
| [Citalopram] | 0.60 ± 0.16 | 0.81 ± 0.04 | 0.44 ± 0.07 | 1.34 ± 0.33 | 1.76 ± 1.01 | |
| N = 6 | N = 3 | N = 3 | N = 6 | N = 12 | ||
| Mixture | [Cetirizine] | 12.33 ± 4.76 | 15.21 ± 5.17 | 7.88 ± 0.73 | 3.49 ± 0.70 | 3.97 ± 3.33 |
| [Citalopram] | 0.64 ± 0.24 | 0.81 ± 0.19 | 0.54 ± 0.07 | 1.16 ± 0.23 | 1.29 ± 0.82 | |
| N = 6 | N = 3 | N = 3 | N = 6 | N = 18 | ||
Water was sampled from exposure tanks at the start and end of the exposure period and from the test arenas following the behavioral trials. Damselfly tissues were sampled at the end of the exposure period, and each sample required the pooling of 3–4 damselfly individuals. Dragonfly tissues were sampled from individuals after their behavioral trials.