Metaldehyde is a widely used molluscicide with UK surface water concentrations typically 0.2–0.6 μg·L− 1
A gastropod embryo development test suggests 21d hatchingNOEC and hatchingLOEC values of 36 and 116 mg.L− 1 for metaldehyde
21d exposure with metaldehyde (34-36 mg.L− 1) ± PBO (0.47-0.56 mg.L− 1) reduced embryo hatching success from 100% to 47%