Page 233 - Partition & Adsorption of Organic Contaminants in Environmental Systems

Concentrations of Pesticides and Chlorinated Compounds in Soil (C s) and Barley Plants (C pt) after 1-Week Plant Uptake
a e pt 1.0 0.19 0.35 0.27 0.20 0.19 0.11
C som/K som),

= (ppm) C d pt 1.02 (2.53) 0.70 (1.33) 1.93 (3.54) 1.14 (1.24) 2.19 (2.21) 2.54 (2.77) 0.70 (0.88) (1982b). (1983), dieldrin from Felsot and Wilson (1980), and (7.14).
Soil-Interstitial-Water Concentrations (C w (ppm) C e (ppm) w 10 -1 1.6 ¥ 24 (28) 10 -2 3.8 ¥ 19 (21) 10 -2 1.2 ¥ 32 (34) 10 -2 1.2 ¥ 59 (59) 10 -3 3.4 ¥ 53 (54) 10 -3 1.6 ¥ 61 (62) 10 -4 2.7 ¥ 60 (62) (1986) and hexachlorobenzene and DDT from Chiou et al.

1990) and Calculated SOM-Normalized Concentrations (C som) a ,

(ppm) C d som 0.84 (0.98) 0.65 (0.75) 1.13 (1.18) 2.07 (2.08) 1.86 (1.88) 2.15 (2.16) 2.10 (2.16) for 1,2,3,5-tetrachlorobenzene, hexachlorobenzene, and 2,4,6,2¢,4¢-PCB estimated from Eq.

C d s Numbers outside the parentheses are for the parent compounds; numbers within the parentheses are sums of parents and metabolites.

som
logK c 2.17 2.70 3.42 3.69 4.19 4.57 5.34 (1990) except for dieldrin from Brook et al. for atrazine from Kenaga and Goring, (1980), 1,2,4-trichlorobenzene from Chiou et al.

ow
logK b 2.71 3.98 4.65 4.55 5.50 5.92 6.36 (2001). (1970); the log K som
and Quasiequilibrium Factors (a pt) Data from Chiou et al. The SOM content is 3.5% by weight. Calculated only for the parent compounds.

8.2. 1,2,4-Trichlorobenzene 1,2,3,5-Tetrachlorobenzene Hexachlorobenzene Values cited by Trapp et al. DDT from Shin et al.
TABLE (Trapp et al., Compound Atrazine Dieldrin 2,4,6,2¢,4¢-PCB DDT Source: a b c The log K som d e

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