Predicted bioconcentration factors and soil sorption coefficients of pesticides and other chemicals

Kenaga, Eugene E.

doi:10.1016/0147-6513(80)90005-6

Cited by 251 publications

(97 citation statements)

References 1 publication

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“…This was well supported by some studies previously reported in some aquatic species (Kenaga 1980). It was also reported to be apparently not bioaccumulated from sediment by bottom feeders such as clams and oysters from Lake Pontchartrain, USA (Byrne & DeLeon 1986).…”

Section: Resultssupporting

confidence: 77%

Beryllium Levels in the Mangrove Snail Nerita lineata and Surface Sediments from Peninsular Malaysia Mangrove Area

Chee¹,

Cheng²

2015

JSM

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Section: Resultssupporting

confidence: 77%

Beryllium Levels in the Mangrove Snail Nerita lineata and Surface Sediments from Peninsular Malaysia Mangrove Area

Chee¹,

Cheng²

2015

JSM

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“…The increase or decrease in the extent of sorption of a certain compound to the two soil materials is almost linearly proportional to the amount of organic carbon on the soil (Table 1). In fact, the values of K D (Table 5) can be reasonably predicted (within a factor of 2) using the solubility data (Table 2) and solubility-based relationships similar to those developed by Kenaga (1980) and Hassett and others (1983). However, based on the reported solubility (Table 2), the differences in the extent of sorption of DMP and DEP to the soil materials are expected to be higher than what in fact has been observed in this study.…”

Section: Cases and Solutionsmentioning

confidence: 88%

Effects of fundamental differences between batch and miscible displacement techniques on sorption distribution coefficient

Maraqa

2001

Env Geol

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A circulation-through-column (CTC) technique was developed and employed to evaluate the in¯uence of fundamental differences between batch and miscible displacement (MD) techniques on the value of the sorption distribution coef®cient (K). Batch, MD, and CTC experiments were conducted to determine sorption equilibrium parameters for dimethylphthalate (DMP), diethylphthalate (DEP), and dipropylphthalate (DPP) using two natural soil samples with 0.36 and 1.48% organic carbon. Batch sorption isotherms of DMP and DEP were linear while that of DPP was nonlinear. Batchdetermined K values for the compounds were 30 to 170% higher than the corresponding values obtained from breakthrough curves (BTCs) generated through MD experiments. Similarities between values of K derived from batch and CTC techniques suggest that underestimation of K determined from BTCs is not due to fundamental differences between batch and MD techniques. The extent of deviation between the K values determined by batch and MD experiments was inversely related to the value of K. This was well explained by a ®xed percent reduction in the retardation coef®cient determined from solute BTCs, suggesting a possible leftward shift of these curves.

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“…This may have been due to the fact that any fensulfothion which became bound to the cells was rapidly reduced to the sulfide. Our experimental bioconcentration factor for fensulfothion sulfide of 7· 2-28' 8, however, is about what is expected from water solubility data (Kenaga 1980). This accumulation effect was not unique to fensulfothion sulfide as the structurally similar compound HOL 4438 was also bound by K. pneumoniae cells.…”

Section: Discussionmentioning

confidence: 71%

Conversion of Fensulfothion by Klebsiella pneumoniae to Fensulfothion Sulfide and Its Accumulation.

MacRae¹

1982

Aust. Jnl. Of Bio. Sci.

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In a detailed study it was shown that washed cell suspensions of K. pneumoniae reduced the organophosphorus pesticide fensulfothion to fensulfothion sulfide. Temperature and pH optima for this conversion plus sensitivity to sulfydryl-reacting agents strongly suggested enzyme involvement. The reaction was also quite sensitive to molecular oxygen, only proceeding under conditions of low oxygen tension. Once formed, the fensulfothion sulfide was rapidly bound by living and heat-killed cells. A combination of lysozyme treatment and differential centrifugation showed 90 % of the sulfide to be concentrated in the cell membrane fraction of exposed cells.

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Predicted bioconcentration factors and soil sorption coefficients of pesticides and other chemicals

Cited by 251 publications

References 1 publication

Beryllium Levels in the Mangrove Snail Nerita lineata and Surface Sediments from Peninsular Malaysia Mangrove Area

Beryllium Levels in the Mangrove Snail Nerita lineata and Surface Sediments from Peninsular Malaysia Mangrove Area

Effects of fundamental differences between batch and miscible displacement techniques on sorption distribution coefficient

Conversion of Fensulfothion by Klebsiella pneumoniae to Fensulfothion Sulfide and Its Accumulation.

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