Growth of C. riparius larvae (%
of control, n = 5) after 96 h of exposure to medium
dosed by SR (n = 5) equilibrated with sediment originating
from different locations (n = 25). Colors indicate
land use: C = control, AS = artificial sediment, N = nature, A = agriculture,
M = mixed, U = urban, and W = WWTP. The black line represents the
average control growth, the black lines within the boxes represent
the median growth per location, the black asterix within the boxes
represents the mean growth per location, dots indicate outliers, a
red asterix indicates significant (p < 0.05) differences
in growth compared to the control.