Measuring and Estimating the Bioconcentration Factor of Chemicals in Fish

Veith, Gilman D.; DeFoe, David L.; Bergstedt, Barbara V.

doi:10.1139/f79-146

Cited by 745 publications

(344 citation statements)

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“…In particular, it would appear that the bioconcentration factors, which generally correlate well with the partition coefficients (4,8), could vary between different aquatic systems by several orders of magnitude. Specifically, the observed variation of log PAP, of PCP will affect fugacity calculations (9) and may also explain the disagreement between the experimental bioconcentration factor and that calculated from the partition coefficient of the un-ionized PCP moiety (8,10).…”

Section: Resultsmentioning

confidence: 99%

Apparent octanol/water partition coefficients of pentachlorophenol as a function of pH

Kaiser¹,

Valdmanis²

1982

Can. J. Chem.

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ILZE VALDMANIS. Can. J. Chem. 60,2104Chem. 60, (1982. The apparent 1-octanol/water partition coefficient (log PAP,) of pentachlorophenol (PCP) varies in non-linear function with pH of the aqueous solution. In the range of pH 1.2 to 13.5 extreme values of log PAP, 4.84 at pH 1.2 and log PA,, 1.3 at pH 10.5 were observed. In the alkaline regime, log PAP, increases strongly with the ionic strength. The ion-corrected partition coefficient of PCP was found to be log P 5.05 in good agreement with literature values. KLAUS L. E. KAISER et ILZE VALDMANIS. Can. J. Chem. 60,2104Chem. 60, (1982. Le coefficient de partage apparent entre octanol-lleau, log Pap,, du pentachlorophtnol (PCP) varie d'une f a~o n non-lidaire avec le pH de la solution aqueuse. Dans I'intervalle de pH de 1,2 13,5, les valeurs extrEmes sont log Pap, = 4,84 a un pH de 1,2 et de log Pap, = 1,3 a un pH de 10,5. En regime alcalin, le log Pap, augmente fortement avec la force ionique. Pour le PCP, on a trouvt que le coefficient de partage corrige pour les ions est le log P 5,05 qui est en bon accord avec les valeurs publiees dans le litttrature.[Traduit par le journal]Partition coefficients (log P) of organic solutes in gas chromatography on a 3% Dexsil-300 column at 175'C with an the l-octanol/water system are very useful electron capture detector. Other solvents were of pesticide grade, acetic anhydride (ANALAR, double distilled), sulfuric physicochemical parameters for the correlation acid (ARISTAR). and Drediction of the solutes' biological activities (1). The fungicidal properties of pen~chlorophenol Standards and procedure (PCP) and its resistance to degradation make it an Octan01-Saturated water and water-saturated octanol were prepared by stimng mixtures of 200 mL octanol with 10 mL important wood preservative (2)' it water and of 200 mL water with 2 mL octanol, respectively, for is frequently found to be present in industrial waste 1 h at high speed, centrifugating each mixture for 1.5 h at 2300 water effluents and has been observed as contami-rpm and removing the excess octanol, respectively water, with nant of water, sediment, and biota of many lakes a Pasteur pipette. and rivers (2, 3). -PCP, the effective or apparent partition cbefficient standards for the recovery tests: 10 mL volumes of 20.0 mglmL (log PA,,) 1 is pH dependent. Therefore, it is of PCP (C) and 0.2 mglmL PCP (D) were also prepared.The pH of 2 L of octanol-saturated water was determined with interest determine log P *~~ for the wide range a pH meter and adjusted to the desired value with H,SO, or DH as found in the waste effluents and I-eceivinn NaOH solution. To each four of eight 200 mL aliauots in 250 mL waters. This paper reports on such measurements for PCP in 1-octanollwater over a range of pH 1.2 to 13.5. ExperimentalMarerials Pentachlorophenol (Aldrich, Gold Label, lot if081587 KC) was twice recrystallized from ethanollwater. 1-Octanol (MCB, Reagent Grade) was fractionated over a 0.6 m glass column; the distillate of bp 194 to 195°C was collected and found free of imp...

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Section: Resultsmentioning

confidence: 99%

Apparent octanol/water partition coefficients of pentachlorophenol as a function of pH

Kaiser¹,

Valdmanis²

1982

Can. J. Chem.

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“…The accumulation of HBCD in different organisms such as invertebrates, fish, birds and mammals (including humans), and its biomagnification in food chains have been reported Law et al, 2006;Covaci et al ., 2006). BCFs of 18,100 in Pimephales promelas (fathead minnows) (Veith et al, 1979) and 19,200 in O. mykiss (Drottar et al, 2001) have been measured. Stereoisomer-specific bioaccumulation has been observed in HBCD.…”

Section: Bioaccumulationmentioning

confidence: 98%

Hexabromocyclododecane and Hexachlorocyclohexane: How Lessons Learnt Have Led to Improved Regulation

Onogbosele

Scrimshaw

2014

Critical Reviews in Environmental Science and Technology

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“…The results presented 06p6 in this part concern three selected molecules of pesticides with varying degrees of solubility. Solubility (S w in mg·L −1 ) and different K ow (octanol-water partitioning coefficient) values are used as indicators for estimating bioaccumulation in animals and plants and in predicting the toxic effects of substances (Veith et al, 1979;Briggs, 1981;Calamari and Vighi, 1990).…”

Section: > Concentration-discharge Relationships: Hysteresis Patternsmentioning

confidence: 99%

The role of storm flows in concentration of pesticides associated with particulate and dissolved fractions as a threat to aquatic ecosystems - Case study: the agricultural watershed of Save river (Southwest of France)

Taghavi

Merlina

Probst

2011

Knowl. Managt. Aquatic Ecosyst.

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Key-words: pesticide, TSM, DOC, hysteresis patterns, flood flowMeasurement of the fluxes of pesticides was carried out for a year, ending in March 2009, in the Save catchment, in the vicinity of Toulouse. The hydrograph separation technique was used to evaluate the respective contribution of stormflow and baseflow in transport of 12 pesticide molecules. Transport of over 59% of pesticides and their controlling factors such as total suspended matter (TSM), particulate organic carbon (POC) and dissolved organic carbon (DOC) occurred during storm periods. Hysteresis patterns could be observed in the concentration-discharge relationships only for some molecules between rising and falling periods of the storm hydrograph. Clockwise hysteresis was noticed for low to moderately soluble pesticide molecules and for particulate fractions, which explains the role of surface runoff in pesticide displacement. In contrast, anticlockwise hysteresis was registered for soluble molecules and dissolved fractions, explaining the role of subsurface flows and soil leaching processes. The important role of TSM, POC and DOC in pesticide transport was clearly established. We also came to the conclusion that the role of stormy periods in pesticide movement and their controlling factors worked as a threat to aquatic ecosystems. And there was a positive relation between riverine TSM, POC, DOC and pesticides according to pesticide properties. RÉSUMÉLe rôle des crues sur la concentration en pesticides associés aux fractions particulaires et dissoutes, une menace pour les écosystèmes aquatiques Cas d'étude : le bassin versant agricole de la rivière Save (sud-ouest de la France) Mots-clés :pesticide, MES, COD, hystérésis, crue transportés durant les périodes de crue. Des hystérésis peuvent être observées sur les relations concentrations-débits, uniquement pour quelques molécules, entre la montée et la descente de crue. Des hystérésis dextres (sens des aiguilles d'une montre) sont observées pour les molécules peu ou modérément solubles et pour les fractions particulaires montrant le rôle du ruissellement de surface dans le transfert des pesticides. Au contraire, des hystérésis senestres (sens inverse) sont observées pour les molécules solubles et les fractions dissoutes montrant le rôle des écoulements hypodermiques et du lessivage des sols. On a pu établir clairement le rôle important des MES, du COP et du COD dans le transport des pesticides. Les résultats obtenus nous montrent aussi le rôle joué par les épisodes de crue sur les transferts de pesticides et de leurs facteurs de contrôle, représen-tant un risque potentiel important de contamination des eaux et une menace pour les écosystèmes aquatiques. Des relations positives sont mises en évidence entre les teneurs en MES, COD ou COP et les concentrations en pesticides selon les propriétés physico-chimiques des différents pesticides.

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Measuring and Estimating the Bioconcentration Factor of Chemicals in Fish

Cited by 745 publications

References 0 publications

Apparent octanol/water partition coefficients of pentachlorophenol as a function of pH

Apparent octanol/water partition coefficients of pentachlorophenol as a function of pH

Hexabromocyclododecane and Hexachlorocyclohexane: How Lessons Learnt Have Led to Improved Regulation

The role of storm flows in concentration of pesticides associated with particulate and dissolved fractions as a threat to aquatic ecosystems - Case study: the agricultural watershed of Save river (Southwest of France)

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