Phytotoxkit/Phytotestkit and Microtox® as tools for toxicity assessment of sediments

Baran, Agnieszka; Tarnawski, Marek

doi:10.1016/j.ecoenv.2013.10.010

Cited by 74 publications

(81 citation statements)

References 35 publications

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“…Recent decades have seen continual progress in the testing of biomonitoring methods (especially acute toxicity tests) for surface water samples. Nevertheless, use of these methods in practice is still limited [45][46][47][48][49][50] Lymnaea stagnalis is a widespread species found throughout Europe, Northern Asia and North America [41]. It is noteworthy that this species can be found in still or slow-moving waters [51,52].…”

Section: Discussionmentioning

confidence: 99%

A Lymnaea stagnalis Embryo Test for Toxicity Bioindication of Acidification and Ammonia Pollution in Water

Mazur

Szoszkiewicz

et al. 2016

Water

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Abstract:The paper presents a study leading to a new acute toxicity test on embryonic and juvenile organisms of the great pond snail (Lymnaea stagnalis Linnaeus). Sulfuric acid, nitric acid, and ammonium hydroxide were used as waterborne toxicants in laboratory experiments. The exposure time was 24 h. Tests were conducted in 5-10 replications for each toxicant. The toxicity of the substances was classified according to different scales and the test's sensitivity was compared to that of the commonly used bioindicator Daphnia magna Straus. The assessment of toxicity impact was supported by microscopic observations. The probit method was used as a parametric statistical procedure to estimate LC 50 and the associated 95% confidence interval. Our study showed that the early developmental stages of Lymnaea stagnalis are very sensitive bioindicators, making it possible to detect even very low levels of the above-mentioned water toxicants. The highest toxicity is shown by ammonium hydroxide with LC 50/24h values, respectively, 24.27 for embryos and 24.72 for juvenile forms, and the lowest is shown by nitric acid ions with LC 50/24h values, respectively, 105.19 for embryos and 170.47 for juvenile forms. It is highly cost-effective due to simple and efficient breeding and the small size of the organisms in the bioassay population. Compared with Daphnia magna, relatively low concentrations of toxicants caused a lethal effect on embryonic and juvenile organisms of the great pond snail. Owing to their common occurrence and sensitivity, early developmental forms of Lymnaea stagnalis can be a valuable new tool in biomonitoring of the freshwater environment.

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Section: Discussionmentioning

confidence: 99%

A Lymnaea stagnalis Embryo Test for Toxicity Bioindication of Acidification and Ammonia Pollution in Water

Mazur

Szoszkiewicz

et al. 2016

Water

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“…Organic material binds metals forming soluble and insoluble complexes and depending on the interactions that occur, metals may or may not be bioavailable (Burton, 1992). Plant growth may be stimulated by nitrogen and phosphorus while inhibited by ammonia (Baran and Tarnawski, 2013). Phyto-stimulation occurs in the presence of nutrient-rich sediments and may result in the elimination of the inhibitory effects of heavy metals on plant growth (Czerniawska-Kusza and Kusza, 2011).…”

Section: Resultsmentioning

confidence: 99%

The use of bioassays to assess the toxicity of sediment in an acid mine drainage impacted river in Gauteng (South Africa)

Singh

Nel

Durand

2017

WSA

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Sediment contamination may occur from various anthropogenic activities, such as mining-, agricultural-and industrial practices. Many of the contaminants arising from these activities enter the aquatic system and precipitate from the surrounding water, becoming bound to sediment particles. These bound contaminants may reach concentrations higher than in the overlying water. Although water quality may be acceptable, an aquatic system may still be at risk if the contaminated sediment were to be disturbed through flooding, bioturbation or changes in the water chemistry. These contaminants may then desorb into the water column and prove detrimental to life forms in contact and dependent on that water source. Sediment quality monitoring has been a widespread international initiative and has led to the development of sediment toxicity assessment methods. This study focused on sediment bioassays, namely, Phytotoxkit, Ostracodtoxkit F and the Diptera bioassay, in assessing sediment quality of the Tweelopiespruit-Rietspruit-Bloubankspruit river system in Gauteng, South Africa. This river is known to have been impacted by acid mine drainage (AMD) since late August, 2002. Exposure of river sediment from 7 sampling sites to these bioassays provided an eco-toxicological estimation of the acute toxicity and chronic toxicity emanating from the contaminated sediments. Physico-chemical analyses revealed higher levels of sediment contamination closer to the mine. The bioassays displayed a similar trend with greater sensitivities to sediments closer to the mine and lower sensitivities to the less contaminated sites further downstream. AMD was therefore the main driver for sediment contamination. Whilst not all contaminants were bioavailable, statistical analysis showed that there were significant correlations between the elevated contaminant concentrations closer to the mine and bioassay responses.

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“…Luminescence stimulation by exposure to zinc, cadmium, and chromium was also found in research by Christofi et al [43], who showed an enhancement of luminescence induced by low concentrations of these metals. Stimulation of V. fischeri bacteria luminescence was observed in the environmental research when analyzing samples of pore water from bottom sediments and river [49,50]. In both cases, a low concentration of heavy metals in the studied samples was found.…”

Section: Vibrio Fischeri Responsementioning

confidence: 95%

Impact of thermal treatment of mixtures of sewage sludge and plant material on selected chemical properties and Vibrio fischeri response

Gondek

Baran

Mierzwa–Hersztek

et al. 2017

Ecological Chemistry and Engineering S

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Abstract:The aim of the research was to evaluate the effect of temperature during the treatment process as well as the effect of adding plant materials to sewage sludge on selected chemical properties and Vibrio fischeri response. The mixtures were placed in a chamber furnace, under airless conditions. Two temperature procedures were applied: 300 and 600ºC; the exposure time in both cases was 15 minutes. Thermal treatment of sewage sludge without a plant component is not well-founded and may cause an increase in concentration of trace elements. Using the temperature of 300ºC caused significantly lower changes in the contents of total forms of trace elements than using the temperature of 600ºC. The metals extracted from the studied mixtures were not toxic for the Vibrio fischeri. In the case of the fractional composition of humic compounds, thermal treatment of mixtures of sewage sludge and plant materials is not beneficial in terms of labile fractions, but it had a beneficial effect on stabilizing the durable bonds between C compounds in those mixtures.

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Phytotoxkit/Phytotestkit and Microtox® as tools for toxicity assessment of sediments

Cited by 74 publications

References 35 publications

A Lymnaea stagnalis Embryo Test for Toxicity Bioindication of Acidification and Ammonia Pollution in Water

A Lymnaea stagnalis Embryo Test for Toxicity Bioindication of Acidification and Ammonia Pollution in Water

The use of bioassays to assess the toxicity of sediment in an acid mine drainage impacted river in Gauteng (South Africa)

Impact of thermal treatment of mixtures of sewage sludge and plant material on selected chemical properties and Vibrio fischeri response

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