Direct toxicity assessment — Methods, evaluation, interpretation

Gruiz, Katalin; Fekete-Kertész, Ildikó; Kunglné-Nagy, Zsuzsanna; Hajdu, Csilla; Feigl, Viktória; Vaszita, Emese; Molnár, Mónika

doi:10.1016/j.scitotenv.2016.01.007

Cited by 28 publications

(17 citation statements)

References 22 publications

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“…Testing of the whole soil samples instead of extracts is a more sensitive method to measure the toxic effect of BRs on the survival of potworms. This result is supported by previous findings on Direct Toxicity Assessment (DTA), which is of high environmental relevance because it represents all possible interactions between contaminants, ecosystem members and the matrix [53].…”

Section: Acute Mortality Testssupporting

confidence: 89%

The Effect of Bauxite Residue on the Avoidance Behavior of Enchytraeus albidus (Enchytraeidae)

Kerekes

Feigl

2018

Period. Polytech. Chem. Eng.

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The potworm Enchytraeus albidus has been used as a testorganism to assess the effects of soil polluting chemicals. The current standardized test methods do not exploit the sensitivity of avoidance behavior of the animals towards chemicals as measurement endpoint. In this paper we tested the effect of bauxite residue (BR), the waste from alumina production, on the habitat of a macrodecomposer in three different soils: an acidic sandy soil (NY), a carbonated sandy soil (OB) and a silty soil (NH). In the acute toxicity tests the testing of whole soil samples proved to be more sensitive compared to the testing of soil suspensions and soil extracts, which indicated significant mortality only at over 50 % BR in soil. EC 20 values were 9 % BR in OB, 28 % BR in NH and 34 % BR in NY in the whole soil tests of our study. In the avoidance test potworms chose the 1 % and 5 % BR treated soils instead of the control soils, but avoided the 10 % and 25 % BR concentrations. Besides the common methodology applied in avoidance tests, we offered not only control and treated soil pairs to the animals, but we also paired all the concentrations with each other. E. albidus chose 10 % BR amount in soil instead of 25 % BR in all cases. With the avoidance test we could show not only negative, but also positive effects of soil amendments: BR addition to soils at up to 5 % can result in a better habitat for potworms.

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Section: Acute Mortality Testssupporting

confidence: 89%

The Effect of Bauxite Residue on the Avoidance Behavior of Enchytraeus albidus (Enchytraeidae)

Kerekes

Feigl

2018

Period. Polytech. Chem. Eng.

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“…Both experiments were monitored by an integrated methodology (Gruiz et al, 2009) including physical, chemical, biological and direct contact ecotoxicological test methods (Gruiz et al, 2016). In this study we focus only on how the RM and RMSM amendments influence the substrate utilization of the microbial community (community level physiological profiling, CLPP) in the soil applying the BIOLOG EcoPlate method (Garland, 1997).…”

Section: Methodsmentioning

confidence: 99%

Influence of red mud on soil microbial communities: Application and comprehensive evaluation of the Biolog EcoPlate approach as a tool in soil microbiological studies

Feigl

Ujaczki

Vaszita

et al. 2017

Science of The Total Environment

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132

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Red mud can be applied as soil ameliorant to acidic, sandy and micronutrient deficient soils. There are still knowledge gaps regarding the effects of red mud on the soil microbial community. The Biolog EcoPlate technique is a promising tool for community level physiological profiling. This study presents a detailed evaluation of Biolog EcoPlate data from two case studies. In experiment "A" red mud from Ajka (Hungary) was mixed into acidic sandy soil in soil microcosms at 5-50 w/w%. In experiement "B" red mud soil mixture was mixed into low quality subsoil in a field experiment at 5-50 w/w%. According to average well color development, substrate average well color development and substrate richness 5-20% red mud increased the microbial activity of the acidic sandy soil over the short term, but the effect did not last for 10 months. Shannon diversity index showed that red mud at up to 20% did not change microbial diversity over the short term, but the diversity decreased by the 10 th month. 30-50% red mud had deteriorating effect on the soil microflora. 5-20% red mud soil mixture in the low quality subsoil had a long lasting enhancing effect on the microbial community based on all Biolog EcoPlate parameters. However, 50% red mud soil mixture caused a decrease in diversity and substrate richness. With the Biolog EcoPlate we were able to monitor the changes of the microbial community in red mud affected soils and to assess the amount of red mud and red mud soil mixture applicable for soil treatment in these cases.

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“…Whole effluent toxicity (WET), whole effluent assessment (WEA) and direct toxicity assessment (DTA) all refer to the assessment of the combined toxicity of the mixture of all micropollutants in an effluent sample to aquatic organisms using a suite of standardised aquatic toxicology assays (Gruiz et al, 2016). WET testing has become an important component of the municipal and industrial National Pollutant Discharge Elimination System (NPDES) in the U.S. (Grothe et al, 1995) and as WEA in the European Union.…”

Section: Whole Effluent Toxicitymentioning

confidence: 99%

Bioanalytical Tools in Water Quality Assessment

Neale¹,

Leusch²,

Escher³

2021

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The first edition of Bioanalytical Tools in Water Quality Assessment was released in 2012. The field has exploded since and the second edition updates and reviews the application of bioanalytical tools for water quality assessment including surveillance monitoring. The book focuses on applications to water quality assessment ranging from wastewater to drinking water, including recycled water, as well as treatment processes and advanced water treatment. Emerging applications for other environmental matrices are also included. Bioanalytical Tools in Water Quality Assessment, Second Edition, not only demonstrates applications but also fills in the background knowledge in toxicology/ecotoxicology needed to appreciate these applications. Each chapter summarises fundamental material in a targeted way so that information can be applied to better understand the use of bioanalytical tools in water quality assessment. The book can be used by lecturers teaching academic and professional courses and also by risk assessors, regulators, experts, consultants, researchers and managers working in the water sector. It can also be a reference manual for environmental engineers, analytical chemists and toxicologists. ISBN: 9781789061970 (Paperback) ISBN: 9781789061987 (eBook)

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Direct toxicity assessment — Methods, evaluation, interpretation

Cited by 28 publications

References 22 publications

The Effect of Bauxite Residue on the Avoidance Behavior of Enchytraeus albidus (Enchytraeidae)

The Effect of Bauxite Residue on the Avoidance Behavior of Enchytraeus albidus (Enchytraeidae)

Influence of red mud on soil microbial communities: Application and comprehensive evaluation of the Biolog EcoPlate approach as a tool in soil microbiological studies

Bioanalytical Tools in Water Quality Assessment

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