The use of sigmoidal dose response curves in soil ecotoxicological research

Haanstra, L.; Doelman, P.; Voshaar, J.H. Oude

doi:10.1007/bf02143194

Cited by 409 publications

(245 citation statements)

References 8 publications

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“…EC10 and EC50 values and corresponding 95% confidence intervals for effects on reproduction were estimated with the log-logistic model of Haanstra et al (1985), applying the modification described by Van Brummelen et al (1996).…”

Section: Discussionmentioning

confidence: 99%

Determining the bioavailability and toxicity of lead contamination to earthworms requires using a combination of physicochemical and biological methods

Luo

Verweij

Gestel

2014

Environmental Pollution

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a b s t r a c tThis study aimed at assessing the bioavailability and toxicity of lead to Eisenia andrei in shooting range soils representing different land uses (forest, grassland, bullet plot). Soils contained 47e2398 mg Pb/kg dry weight (dw), but also had different pH-CaCl 2 (3.2e6.8) and organic matter contents (3.8e13%). Therefore artificial soils with different pH and organic matter contents and two natural soils were included as control soils. Earthworms were exposed for 28 days and toxicity and uptake of Pb were related to total, water and 0.01 M CaCl 2 extractable and porewater Pb concentrations as well as to soil characteristics. Pb uptake in the earthworms linearly increased with increasing soil concentrations. At >2000 mg Pb/kg dw and pH 3.3e3.5, high earthworm mortality with significant weight loss and complete inhibition of reproduction were recorded. At <1000 mg/kg dw, earthworm reproduction was more related to differences in pH and other soil characteristics than to Pb.

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Section: Discussionmentioning

confidence: 99%

Determining the bioavailability and toxicity of lead contamination to earthworms requires using a combination of physicochemical and biological methods

Luo

Verweij

Gestel

2014

Environmental Pollution

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“…The average exposure concentration of the test compound in the sediment at which 50% reduction in number of emerged midges occurred compared to the solvent control (LC 50 ) was calculated according to Haanstra et al (1985). The following logistic curve was fitted through the concentrationeresponse data using the average of the measured concentrations at the beginning, Jonassen, 2003;Jonassen et al, 2003. half-way through and at the end of the experiment as the average exposure concentration:…”

Section: Discussionmentioning

confidence: 99%

“…For each test concentration, the day at which 50% emergence occurred (EMt 50 ) was calculated by fitting a logistic curve through the cumulative emergence plot using the data of the five replicates, also according to Haanstra et al (1985). This was done for males and females separately because of the differences in emergence time between both sexes.…”

Section: Discussionmentioning

confidence: 99%

Life cycle responses of the midge Chironomus riparius to polycyclic aromatic compound exposure

Paumen

Borgman

Kraak

et al. 2008

Environmental Pollution

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General rightsIt is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons). Disclaimer/Complaints regulationsIf you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. Emergence of Chironomus riparius is a sensitive endpoint to detect life cycle effects of PACs. AbstractDuring acute exposure, polycyclic aromatic compounds (PACs) act mainly by narcosis, but during chronic exposure the same compounds may exert sublethal life cycle effects. The aim of this study was therefore to evaluate the chronic effects of sediment spiked PACs on the emergence of the midge Chironomus riparius. Three isomer pairs were selected, and 28-day LC 50 values and 50% emergence times (EMt 50 ) were determined. Concentrationeresponse relationships were observed for phenanthrene, acridine, phenanthridine and acridone. Anthracene and phenanthridone had no effect on total emergence, but did cause a delay in emergence. Calculated porewater LC 50 values correlated well with logK ow values, suggesting narcosis as mode of action. In contrast, effect concentrations for delay in emergence (EMt 50 ) deviated from narcosis, suggesting a specific mode of action during chronic exposure. It is concluded that emergence is a powerful endpoint to detect life cycle effects of PACs on a key sediment inhabiting invertebrate. Ó 2007 Elsevier Ltd. All rights reserved.Keywords: Chironomus riparius; Polycyclic aromatic compounds; Emergence IntroductionPolycyclic aromatic compounds (PACs) are ubiquitous contaminants, present in the environment mainly as a result of anthropogenic activities (industry, oil drilling and vehicle emissions). Smaller amounts of PACs are generated in natural processes, like volcanism and forest fires (Neilson, 1998). Because of their hydrophobicity, PACs tend to accumulate in sediments and soils, which act not only as a sink, but also as a source of PACs for benthic organisms (Wilcke, 2000;Van Metre and Mahler, 2005). In sediment cores from 38 urban and reference lakes across the United States, total sediment SPAH concentrations (SPAH ¼ sum of 13 homocyclic PACs used for the consensus-based sediment quality guidelines in the USA) ranged from 0.5 to 10 mg/kg (Van Metre and Mahler, 2005).Populations of benthic invertebrates are exposed to a variety of PACs in the sediment, but little is known about their chronic effects, since research has mainly focused on acute exposure (Bleeker et al., 1998; Neilson, 199...

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“…EC 50 values for the effect of carbendazim treatment on decomposition were calculated by applying the probit analysis (SPSS 7.5). EC 10 and EC 50 values for the effect of carbendazim treatment on bait-lamina consumption were calculated using a logistic model according to Haanstra et al (1985). Differences between tests (TME pre-test, TME ring-test and field-validation study) and between sampling times were tested for significance by ANOVA, and EC 50 values for different tests were compared applying a Generalized Likelihood Ratio test (Sokal and Rohlf, 1969).…”

Section: Statistical Evaluation Of Datamentioning

confidence: 99%

Ring-testing and Field-validation of a Terrestrial Model Ecosystem(TME) – An Instrument for Testing Potentially Harmful Substances: Effects of Carbendazim on Organic Matter Breakdown and Soil Fauna Feeding Activity

et al. 2004

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Abstract. Organic matter (OM) decomposition and soil fauna feeding activity were integrated as functional endpoints into ecotoxicological tests with intact-soil-core Terrestrial Model Ecosystems (TMEs). Cellulose filter paper served as standardized OM and was either inserted into the top soil or placed on the soil surface for a period of up to 16 weeks. Faunal feeding activity was assessed by the bait-lamina method. The fungicide carbendazim, applied at six dosages ranging from 0.36 kg/ha to 87.5 kg a.i./ha, served as a model chemical. To validate the results from the TME test, a field study was run in parallel. In TMEs the cellulose paper inserted into the soil was decomposed faster than under field conditions. The carbendaziminduced effects on OM decomposition in TMEs and in the field were comparable and followed a clear doseresponse relationship. The calculated EC 50 values after 8 weeks of incubation were 9.5, 7.1 and 2.1 kg carbendazim/ha for grassland TMEs, grassland field and arable TMEs, respectively. The feeding activity of the soil fauna showed a large variability. The EC 50 values for the effect of carbendazim on bait-lamina consumption ranged between 2.0 and 56 kg a.i./ha. Effects on decomposition were correlated with effects on enchytraeids and earthworms but not with effects on bait-lamina consumption.

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The use of sigmoidal dose response curves in soil ecotoxicological research

Cited by 409 publications

References 8 publications

Determining the bioavailability and toxicity of lead contamination to earthworms requires using a combination of physicochemical and biological methods

Determining the bioavailability and toxicity of lead contamination to earthworms requires using a combination of physicochemical and biological methods

Life cycle responses of the midge Chironomus riparius to polycyclic aromatic compound exposure

Ring-testing and Field-validation of a Terrestrial Model Ecosystem(TME) – An Instrument for Testing Potentially Harmful Substances: Effects of Carbendazim on Organic Matter Breakdown and Soil Fauna Feeding Activity

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