Distribution of chlorinated pesticides and individual polychlorinated biphenyls in biotic and abiotic compartments of the Rio de la Plata, Argentina

Colombo, Juan Carlos; Khalil, Michel; Arnac, Michel; Horth, Alcide C.; Catoggio, J.A.

doi:10.1021/es00074a006

Cited by 93 publications

(54 citation statements)

References 32 publications

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“…The release of hydrophobic organochlorines from sediments disturbed by dredging and ship transit could have contributed to the high values of this place. As well as Janiot et al, this study pointed HCH as dominant in the dissolved phase which was widely detected, in concentrations ranging between 0.9 and 61 ng/L (Colombo et al, 1990). In the same work, an hexachloro component of technical Chlordane was also detected at several stations in relatively high levels (0.4-28 ng/L).…”

Section: De La Plata Riversupporting

confidence: 75%

“…In 2001, pesticides monitoring in the Reconquista and Luján Rivers showed levels around 2.8±3.9 ng/g, being the trans-Chlordane the most abundant (Cataldo el a., 2001). As previously shown in sediments sampled from De la Plata River (Colombo et al, 1990), the abundance of DDD and DDE, relative to the parent compound, indicated that DDT was being readily metabolized in the sediments. As expected by anthropogenic pressure, the highest loadings of pollutants occurred in areas located closer to the urbanized area, decreasing toward the more remote sites.…”

Section: Sedimentssupporting

confidence: 67%

See 1 more Smart Citation

Pesticides Reaching the Environment as a Consequence of Inappropriate Agricultural Practices in Argentina

Arias¹,

Buzzi²,

Pereira³

et al. 2011

Pesticides - Formulations, Effects, Fate

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Section: De La Plata Riversupporting

confidence: 75%

Section: Sedimentssupporting

confidence: 67%

Pesticides Reaching the Environment as a Consequence of Inappropriate Agricultural Practices in Argentina

Arias¹,

Buzzi²,

Pereira³

et al. 2011

Pesticides - Formulations, Effects, Fate

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“…Mussels showed the lowest values (3.72-4.81) whereas the highest were measured in red mullet (3.69-5.99) and crabs (3.77-5.76). In general, BCFs determined in natural ecosystems are reported to be from 0.5 to 2 orders of magnitude higher than those calculated in the laboratory (Thomann and Connolly 1984; Oliver and Niimi 1988; Colombo et al 1990). This indicates that consideration of only chemical uptake from water exposure underestimates fish residues and suggests that the concentration of PCBs is also derived from food chain uptake.…”

Section: Bioconcentration Patternsmentioning

confidence: 76%

“…Compilations of data show that Kow provides a first approximation to bioconcentration (Mackay 1982), defined as the concentration of a given chemical, at equilibrium, in an organism on a wet weight or lipid weight basis, divided by the concentration of the chemical in the water of the organisms's habitat. However, the application of this simple model in field studies (Oliver and Niimi 1988;Swackhamer and Hites 1988;Colombo et al 1990) indicates that more data is required for its validation and for a better understanding of the bioaccumulation process.…”

mentioning

confidence: 99%

Bioaccumulation patterns of hydrocarbons and polychlorinated biphenyls in bivalves, crustaceans, and fishes

Porte

Albaigés

1994

Arch. Environ. Contam. Toxicol.

127

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Hydrocarbons and polychlorinated biphenyls (PCBs) were determined in tissues of marine organisms (mussels, crabs, benthic, and pelagic fishes) from six sites along the Catalan Coast (Western Mediterranean). Both aliphatic and aromatic hydrocarbons as well as seven PCB congeners (PCB-28, 52, 101, 118, 138, 153, 180) were quantified and differences in concentrations interpreted in terms of geographical distribution, trophic level, and biological cycle of the organisms. The bioaccumulation patterns of the different chemicals varied substantially. Hydrocarbons were metabolized along the food web, contrarily to PCBs, which exhibited a higher bioaccumulation in fishes. Considering 36 peaks of the GC-ECD profiles, encompassing 40 PCB congeners, from tri- to octa-chlorinated isomers, a relative enrichment was observed in the higher chlorinated ones from: mussels < mullets < tuna < crabs. The slopes of the correlation plots between the bioconcentration factor (log BCF) and the octanol-water partition coefficient (log K(ow)) for the different PCB congeners reflected the feeding behavior of the organisms, mussels exhibiting a preferential uptake by direct partitioning from water, and mullets and crabs with a certain uptake from sediments. Increasing metabolic degradation following a similar trend among species was also observed for aromatic hydrocarbons and PCB congeners containing meta and para vicinal H-atoms. Accordingly, mussels and benthic fishes were the best indicators of coastal pollution in the water column and sediments, respectively, although the above features should not be overlooked in the interpretation of biomonitoring data.

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“…The ration between p,pЈ-DDE and p,pЈ-DDD is determined by the environmental factors. Higher proportion of p,pЈ-DDD to p,pЈ-DDE in sediment is probably due to the presence of anaerobic conditions (Colombo et al 1990;Ramesh et al 1991).…”

Section: Organochlorines In Sedimentsmentioning

confidence: 98%

Residues of Organochlorines in Sediments and Tilapia Collected from Inland Water Systems of Hong Kong

Zhou

Cheung

Wong

1999

Arch. Environ. Contam. Toxicol.

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The levels and patterns of organochlorines including DDTs, HCHs, and PCBs were investigated in sediments and tilapia (Tilapia mossambica) collected from inland water systems [Tai Wai (S1), Fo Tan (S2), Siu Lek Yuen (S3), Tai Po (S4), and Tai Wo (S5)] in the New Territories of Hong Kong. Sediment and tilapia samples were also collected from two fish ponds for comparison. The ranges of DDTs, HCHs, and PCBs in river sediments were 2.82-8.63 ng/g (DW), 0.05-2.07 ng/g (DW), and 43-461 ng/g (DW), respectively. All these values were significantly higher (p < 0.05) than the pond sediments. Low chlorinated congeners (especially mono-, tri-, and tetrachlorobiphenyls) were enriched in sediment samples accounting for 70-80% of total PCBs. The ranges of DDTs, HCHs, and PCBs in tilapia muscle collected from Fo Tan and Tai Wai were 28.2-40.1 ng/g (DW), 2.04-3.76 ng/g (DW) and 267-310 ng/g (DW), respectively. These values were also significantly higher (p < 0.05) than those collected from the fish ponds. Higher chlorinated PCBs (tetra-, penta-, hexa-, and heptachlorobiphenyls) were commonly found in tilapia accounting for almost 60% of the total PCBs. The effect of lipid contents in organochlorines accumulation was not significant (p < 0.05) in general.

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Distribution of chlorinated pesticides and individual polychlorinated biphenyls in biotic and abiotic compartments of the Rio de la Plata, Argentina

Cited by 93 publications

References 32 publications

Pesticides Reaching the Environment as a Consequence of Inappropriate Agricultural Practices in Argentina

Pesticides Reaching the Environment as a Consequence of Inappropriate Agricultural Practices in Argentina

Bioaccumulation patterns of hydrocarbons and polychlorinated biphenyls in bivalves, crustaceans, and fishes

Residues of Organochlorines in Sediments and Tilapia Collected from Inland Water Systems of Hong Kong

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