Ecotoxicological effects at contaminated sites

Fent, Karl

doi:10.1016/j.tox.2004.06.060

Cited by 154 publications

(83 citation statements)

References 81 publications

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“…Contaminants from industry, agriculture, urban runoff, and other sources have found their way into these environments, affecting all levels of biological organization, from the individual to the entire ecosystem (1)(2)(3). Consequently, fish species assemblages have shifted (4), and major fish population declines have occurred (5,6).…”

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confidence: 99%

Maternal transfer of xenobiotics and effects on larval striped bass in the San Francisco Estuary

Ostrach

Low-Marchelli

Eder

et al. 2008

Proc. Natl. Acad. Sci. U.S.A.

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Aquatic ecosystems around the world face serious threats from anthropogenic contaminants. Results from 8 years of field and laboratory investigations indicate that sublethal contaminant exposure is occurring in the early life stages of striped bass in the San Francisco Estuary, a population in continual decline since its initial collapse during the 1970s. Biologically significant levels of polychlorinated biphenyls, polybrominated diphenyl ethers, and current-use/legacy pesticides were found in all egg samples from river-collected fish. Developmental changes previously unseen with standard methods were detected with a technique using the principles of unbiased stereology. Abnormal yolk utilization, brain and liver development, and overall growth were observed in larvae from river-collected fish. Histopathological analyses confirmed and identified developmental alterations. Using this methodology enabled us to present a conclusive line of evidence for the maternal transfer of xenobiotics and their adverse effects on larval striped bass in this estuary.Morone saxatilis ͉ contaminants ͉ biomarkers ͉ histopathology ͉ unbiased stereology

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confidence: 99%

Maternal transfer of xenobiotics and effects on larval striped bass in the San Francisco Estuary

Ostrach

Low-Marchelli

Eder

et al. 2008

Proc. Natl. Acad. Sci. U.S.A.

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“…It was found within the generic standard (0.1mg/l). However, continuous discharge of chromium in low concentration has been reported to be toxic to aquatic life and can disrupt the aquatic food chain (Fent 2004). …”

Section: Resultsmentioning

confidence: 99%

Water Quality Assessment of Sirsiya River

Shah¹,

Pant

2013

Nepal Journal of Science and Technology

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The parameters such as temperature, PH, TSS, TDS, ammonia, phenol, cyanide, sulfide, oil and grease, chloride, DO, COD and BOD were taken to assess the water quality of Sirsiya river, central southern Nepal. Water samples were collected from upstream to downstream from the point receiving industrial effluent to Sirsiya river. It receives wastewater burden of more than 250 industries along Bara/Parsa industrial corridor. All the parameters except oil and grease were found within the generic standard. The study revealed that the physic-chemical characteristic of the river water was changing as a result of the discharge of untreated effluents from different industries. This may impact on water quality of Sirsiya river and also pose human health problems.

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“…Awareness concerning the importance of the soil functions' recovery after the occurrence of a disturbance has risen since the 90's. Analyses only on chemical basis do not provide evidence for toxicological consequences in biota (Fent, 2004), as chemical tests do not reflect the effect of pollutants on organisms and the interactions among contaminants, matrix and biota (ISO/DIS 17402, 2006). They provide weak information about the bioavailability or toxicity of contaminants and are insufficient to offer an insight into the potential ecological risk.…”

Section: Introductionmentioning

confidence: 99%

Amendment application in a multi-contaminated mine soil: effects on soil enzymatic activities and ecotoxicological characteristics

Manzano

Esteban

Peñalosa

et al. 2013

Environ Sci Pollut Res

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Esta es la versión de autor del artículo publicado en: This is an author produced version of a paper published in: El acceso a la versión del editor puede requerir la suscripción del recurso Access to the published version may require subscription AbstractSeveral amendments were tested on soils obtained from an arsenopyrite mine, further planted with Arrhenatherum elatius and Festuca curvifolia, in order to assess their ability to improve soil's ecotoxicological characteristics. The properties used to assess the effects were: soil enzymatic activities (dehydrogenase, β-glucosidase, acid phosphatase, urease, protease and cellulase), terrestrial bioassays (Eisenia fetida mortality and avoidance behavior), and aquatic bioassays using a soil leachate (Daphnia magna immobilisation and Vibrio fischeri bioluminescence inhibition).The treatment with FeSO4 1% w/w was able to reduce extractable As in soil, but increased the extractable Cu, Mn and Zn concentrations, as a consequence of the decrease in soil pH, in relation to the unamended soil, from 5.0 to 3.4, respectively. As a consequence, this treatment had a detrimental effect in some of the soil enzymatic activities (e.g. dehydrogenase, acid phosphatase, urease and cellulase), did not allow plant growth, induced E. fetida mortality in the highest concentration tested (100% w/w), and its soil leachate was very toxic towards D. magna and V. fischeri. The combined application of FeSO4 1% w/w with other treatments (e.g. CaCO3 1% w/w and paper mill 1% w/w) allowed a decrease in extractable As and metals, and a soil pH 3 value closer to neutrality. As a consequence, dehydrogenase activity, plant growth and some of the bioassays identified those as better soil treatments to this type of multicontaminated soil.

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Ecotoxicological effects at contaminated sites

Cited by 154 publications

References 81 publications

Maternal transfer of xenobiotics and effects on larval striped bass in the San Francisco Estuary

Maternal transfer of xenobiotics and effects on larval striped bass in the San Francisco Estuary

Water Quality Assessment of Sirsiya River

Amendment application in a multi-contaminated mine soil: effects on soil enzymatic activities and ecotoxicological characteristics

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