Impact of heterophylly on the sensitivity of Myriophyllum aquaticum biotests

Environmental Sciences Europe

Table 1 Concentrations measured 1 h after application of the test substances (μg L ⁻¹ )

	2,4-D (μg a.i./L)	Atrazine (μg a.i./L)
Nominal concentration	2,000	640
Measured concentration (0-day adaptation test)	2,099	523
Measured concentration (7-day adaptation test)	2,099	596
Measured concentration (28-day adaptation test)	2,107	589

The highest concentrations are shown for the three biotest adaptation times to submergence (0, 7, 28 days).