Additions and Corrections 2009, Volume 43 Pages 7212–7217 Thomas L. ter Laak,* Martin A. ter Bekke, and Joop L. M. Hermens: Dissolved Organic Matter Enhances Transport of PAHs to Aquatic Organisms Some numbers in Table 1 on page 7215 were incorrectly printed. The correct form of Table 1 is as follows:
TABLE 1. Kinetic Parameters and Distribution Coefficients of Fibers, Worms, and Humic Acid water and DOC pyrene benzo[b]fluoranthene
0 DOC low DOC high DOC 0 DOC low DOC high DOC
fiber pyrene benzo[b]fluoranthene
0 DOC low DOC high DOC 0 DOC low DOC high DOC
worm pyrene benzo[b]fluoranthene
0 DOC low DOC high DOC 0 DOC low DOC high DOC
Caqa (µg L-1)
Cmb (µg L-1)
Cm/Caqc
Log KDOC (L kg-1)
0.72 (0.02) 0.72 (0.02) 0.72 (0.02) 0.043 (0.005) 0.043 (0.005) 0.043 (0.005) Ceq (mg L-1) 13.96 (0.24) 14.80 (0.22) 14.21 (0.25)
0.73 (0.06) 1.89 (0.04) 4.59 (0.04) 0.064 (0.09) 1.49 (0.08) 5.22 (0.04) ke (h-1) 0.0066 (0.0003) 0.0065 (0.0003) 0.0077 (0.0004)
Ceq (mg kg-1ww) 8.04 (0.29) 5.63 (0.29) 7.32 (0.51)
ke (h-1) 0.0058 (0.0006) 0.0076 (0.0011) 0.0094 (0.0020)
1.02 (0.12) 2.64 (0.11) 6.40 (0.26) 1.50 (0.18) 34.2 (4.5) 120 (14.4) ku (h-1) 129 (5) 133 (4) 152 (6) 78.5 (1.9) 151 (5) 220 (16) ku (L kg-1 ww h-1) 65.4 (4.5) 74.2 (11.2) 96.2 (17.4) 47.8 (1.4) 104 (3) 189 (5)
d
4.97 (0.07) 5.00 (0.04) d
6.27 (0.03) 6.34 (0.04)
Log BCF (L kg-1) 5.60 (0.02) 5.45 (0.02) 5.56 (0.03)
a Caq (the freely dissolved aqueous concentration) is calculated from the concentration in the silicone dosing sheet (eq 1). Cm (the medium concentration) is determined by extracting the medium. c Cm/Caq ) 1 + KDOC DOC. d KDOC values (sorption coefficients to dissolved organic carbon) are not shown for the 0 DOC treatments since the nature of the low DOC present in this system is unknown. Ceq is the equilibrium concentration, ke is the elimination rate constant, and ku is the uptake rate constant of the worm and fiber. The BCF (bioconcentration factor) was calculated with lipid corrected equilibrium concentrations in the worms and Caq. Standard deviations (KDOC and Cm/Caq) or standard errors (Cm, Caq, Ceq, ke, ku, log BCF) are given between brackets. b
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