Ecotoxicological monitoring of remediation in a coke oven soil

Mendonça, E.; Picado, Ana

doi:10.1002/tox.10034

Cited by 38 publications

(23 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These results were not in agreement with previous studies that reported the markedly higher sensitivity of R. subcapitata and V. fischeri in comparison with D magna towards elutriates from hydrocarbon-contaminated soils (Rojíčková-Padrtová et al 1998;Bispo et al 1999;Mendonça and Picado 2002;Eom et al 2007). The higher toxicity to D. magna was associated with the salinity of the elutriates, which was already reported by Thavamani et al (2015) after assessing the toxicity of a leachate from a hydrocarbon-contaminated soil to Daphnia carinata.…”

Section: Toxicity To Aquatic Organismscontrasting

confidence: 99%

“…Moreover, they cannot detect toxic intermediary metabolites that increase soil toxicity (Haeseler et al 2001;Loibner et al 2003) nor provide information on bioavailability, synergic, and antagonistic phenomena (Juvonen et al 2000). On the other hand, ecotoxicological tests do integrate all soil-occurring phenomena and are therefore recommended for the ecological risk assessment of polluted soils Bori et al 2016) and as monitoring tools of hydrocarbon remediation (Salanitro et al 1997;Saterbak et al 1999;Mendonça and Picado 2002;Lors et al 2009;Megharaj et al 2011). In order to obtain useful information on potential ecological risks, such tests are usually applied in batteries that include species from different taxonomical groups and routes of exposure (Békaert et al 1999;Bispo et al 1999;Rila and Eisentraeger 2003;Fernandez et al 2005).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Bioassays with terrestrial and aquatic species as monitoring tools of hydrocarbon degradation

Bori¹,

Vallès²,

Ortega³

et al. 2016

Environ Sci Pollut Res

View full text Add to dashboard Cite

In this study chemical analyses and ecotoxicity tests were applied for the assessment of a heavily hydrocarbon-contaminated soil prior and after the application of a remediation procedure that consisted in the stimulation of soil autochthonous populations of hydrocarbon degraders in staticventilated biopiles. Terrestrial bioassays were applied in mixtures of test soils and artificial control soil and studied the survival and reproduction of Eisenia fetida and the avoidance response of E. fetida and Folsomia candida. Effects on aquatic organisms were studied by means of acute tests with Vibrio fischeri, Raphidocelis subcapitata and Daphnia magna performed on aqueous elutriates from test soils. The bioremediation procedure led to a significant reduction in the concentration of hydrocarbons (from 34264 mg kg -1 to 3074 mg kg -1 i.e. 91% decrease) and toxicity although bioassays were not able to report a percentage decrease of toxicity as high as the percentage reduction. Sublethal tests proved the most sensitive terrestrial bioassays and avoidance tests with earthworms and springtails showed potential as monitoring tools of hydrocarbon remediation due to their high sensitivity and short duration. The concentrations of hydrocarbons in water extracts from test soils were 130 µg L -1 and 100 µg L -1 before and after remediation, respectively. Similarly to terrestrial tests, most aquatic bioassays detected a significant reduction in toxicity, which was almost negligible at the end of the treatment. D. magna survival was the most affected by soil elutriates although toxicity to the crustacean was associated to the salinity of the samples rather than to the concentration of hydrocarbons. Ecotoxicity tests with aqueous soil elutriates proved less relevant in the assessment of hydrocarbon-contaminated soils due to the low hydrosolubility of hydrocarbons and the influence of the physicochemical parameters of the aquatic medium.

show abstract

Section: Toxicity To Aquatic Organismscontrasting

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Bioassays with terrestrial and aquatic species as monitoring tools of hydrocarbon degradation

Bori¹,

Vallès²,

Ortega³

et al. 2016

Environ Sci Pollut Res

View full text Add to dashboard Cite

show abstract

“…So, V. fischeri and P. subcapitata were the most sensitive species to this type of contamination. These results are corroborated by those obtained by Mendonça and Picado (2002), who had ecotoxicologically monitored a landfarming process of a coke oven soil. Ti leachate also induced a significant increase of the number of micronucleus on the mouse lymphoma cells without metabolic activator (LOEC = 25%).…”

Section: Evolution Of Leachate Characteristics During Biotreatmentsupporting

confidence: 85%

“…5-ring PAHs showed a slight decrease in their content (14%), whereas the content of 6-ring PAHs remained almost constant. Sayles et al (1999) and Mendonça and Picado (2002), who followed a land treatment of PAH-contaminated soil, obtained similar results. This is in agreement with the results of different studies pointing out that biological processes only reduce low molecular weight PAHs (Bossert et al, 1984;Cerniglia, 1992).…”

Section: Evolution Of Soil Characteristics During the Biotreatmentmentioning

confidence: 58%

Benefit of ecotoxicological bioassays in the evaluation of a biological treatment of PAHs polluted soil

2013

Global NEST Journal

View full text Add to dashboard Cite

The performance of a biological treatment of a PAH-contaminated soil was evaluated with respect to its physicochemical and ecotoxicological properties. After six months, the biological treatment led to an significant reduction of 2-and 3-ring PAHs and to a lesser extent to 4-ring PAHs. As a consequence a significant decrease of the acute ecotoxicity was observed passing from highly ecotoxic before treatment to non-ecotoxic according to Lactuca sativa seedling and growth inhibition test and Eisenia fetida mortality test. This could be related to the bioavailability of PAHs. Indeed, tests performed on aqueous leachates of the soil showed a strong decrease of 2-and 3-ring PAHs correlated with a significant reduction of acute and chronic ecotoxicity responses. The biological treatment led to the mutagenicity reduction and the genotoxicity disappearance in the leachate. Thus, bioassays are complementary to chemical analyses to evaluate the efficiency of a bioremediation process and to evaluate the bioavailability of the organic pollutants as the total concentration of a contaminant is not the only criterion to consider. The comparison of the ecotoxic responses allowed us to underline the best sensitivity of the earthworm, Microtox, Alga and Ames bioassays among the tested set. These bioassays could thus be good candidates to build a toxicity evaluation procedure for PAHs contaminated/ remediated soils.

show abstract

“…They are expensive, difficult to conduct and often indicate only some specific pollutants without information about their negative effect on organisms. Thus, in the preservation of human health and water quality, it is important to evaluate ecotoxicological effects of contaminated water to complement the techniques of analytical chemistry [12]. Resent reports show that bioindication has become the leading method in the world for monitoring pollution in water environment.…”

Section: Introductionmentioning

confidence: 99%

Bioindication of microcystins toxicity by germinating seeds

B.¹,

Grzesik²,

Mankiewicz³

et al. 2006

WIT Transactions on Biomedicine and Health, Vol 10

View full text Add to dashboard Cite

The effects of microcystins, produced by Microcystis aeruginosa PCC 7820, on seed germination, seedling growth, activity of selected enzymes and membrane permeability were evaluated, in order to elaborate the biotests for natural solution toxicity indication in water reservoirs. Commercial seeds of four selected species were allowed to germinate at 20 o C on filter paper moistened with: (i) water (control), (ii) three concentrations of microcystins cultures produced by Microcystis aeruginosa PCC 7820 or (iii) medium BG11 in which these cultures were conducted. To evaluate the sensitivity of these seeds to microcystins the number of the germinated seeds were counted and the length of roots and hypocotyls were measured 1, 2 and 3 days after sowing, while activity of RNase, phosphatase (pH 6.0 and pH 7.5), dehydrogenases and electrolyte leakage were measured after 8 and 24 hours of seed exposition in these compounds. The results showed that microcystins did not decrease significantly germination percentage and mean germination time of the tested seeds, except of L. sativa where the number of the germinated seeds was slightly reduced. A toxic effect of these solutions was exhibited by decreased root length in all germinated seeds, while hypocotyls length was not significantly affected by them. Microcystins also decreased the activity of the investigated enzymes and increased electrolyte leakage measured 8 and 24 hours after sowing. The research showed that growth of roots and activity of RN-ase, phosphatase (pH 6.0 and pH 7.5) or dehydrogenases, as well as electrolyte leakage from germinating seeds of selected species could be used for fast monitoring of the microcystin toxicity in water.

show abstract

Ecotoxicological monitoring of remediation in a coke oven soil

Cited by 38 publications

References 9 publications

Bioassays with terrestrial and aquatic species as monitoring tools of hydrocarbon degradation

Bioassays with terrestrial and aquatic species as monitoring tools of hydrocarbon degradation

Benefit of ecotoxicological bioassays in the evaluation of a biological treatment of PAHs polluted soil

Bioindication of microcystins toxicity by germinating seeds

Contact Info

Product

Resources

About