Polystyrene microplastics do not affect juvenile brown trout (Salmo trutta f. fario) or modulate effects of the pesticide methiocarb

Environmental Sciences Europe

Table 2 Nominal and measured concentrations of methiocarb in the water phase of the different treatment groups

Treatment group	Nominal concentration (µg/L)	Measured concentration at start of experiment (µg/L)	Measured concentration at end of experiment (µg/L)
Control	0	< 0.25	< 0.25
Solvent control	0	< 0.25	< 0.25
PS-MP (10⁴ particles/L)	0	< 0.25	< 0.25
Methiocarb	1000	463 ± 32	237 ± 59
Mixture PS-MP + methiocarb	1000	469 ± 133	308 ± 76

Displayed are the arithmetic mean ± standard deviation of the three aquaria. The applied limit of quantification was 0.25 µg/L methiocarb