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Lethal concentration (LC 50) for Dugesia tigrina expressed as % concentration of analyzed extracts.
| Sampling Months/Sites | SADOWO | UŚCIE | WOJNOWO |
|---|---|---|---|
| 07/2019 | n.t. | n.t. | n.t. |
| 08/2019 | n.t. | 41.7% | n.t. |
| 09/2019 | n.t. | 20.9% | n.t. |
| 10/2019 | n.t. | 35.5% | n.t. |
n.t.—not toxic.
