Showing papers in "Ecotoxicology and Environmental Safety in 2011"

TL;DR: It is demonstrated that metal speciation knowledge could improve the interpretation of V. faba genotoxicity test performed to test soil quality and also that citric acid induced labile organometallic complexes did not demonstrate any significant changes in lead genot toxicity or uptake.

TL;DR: The high uptake of Pd and Rh showed that emissions of catalytic converters are one of the main health hazards of the study area, and P. australis showed a direct response to the environmental conditions, and its application as a biomonitor should be considered.

TL;DR: An approach combining monitoring and ecotoxicological data has been undertaken to assess pesticide loading in the drainage canals of two transboundary rivers of northeastern Greece near the Greek/Bulgarian/Turkish borders as well as the subsequent risk to non-target aquatic organisms.

TL;DR: The potential biochemical mechanisms of uptake of arsenic by aquaporins, capacity for metabolism and cellular efflux of As, and the role of the omega isoform of glutathione-S-transferase is discussed are reviewed.

TL;DR: CBZ-induced stress responses in different tissues were reflected in the oxidant stress indices and hematological parameters, and before those parameters are used as special biomarkers for monitoring residual pharmaceuticals in aquatic environment, more detailed experiments in laboratory need to be performed in the future.

TL;DR: The results suggest that high concentrations of MWCNTs could lower the microbial activity and biomass in soils, and they may serve as an important guideline in regulating the release of M WCNTs to the soil environment.

TL;DR: Investigation of various toxicological parameters viz, oxidative stress response, cytotoxicity, genotoxicity and phytotoxicity concludes that, the toxicity of effluent reduces significantly after treatment with consortium SDS.

TL;DR: Results based on FT-IR studies and microscopic images suggest interaction of the NPs with the cell surface and a concentration dependent decrease in chlorophyll content was observed in the treated cells compared to the untreated ones.

TL;DR: Investigation of concentration and daily intake of heavy metals in market vegetables in Chongqing of China showed that the measured Pb and Cd concentrations exceeded the safety limits given by FAO/WHO and Chinese regulations, indicating serious contamination of market vegetables by these metals.

TL;DR: Erythromycin was considerably more toxic than ciprofloxacin and sulfamethoxazole and may pose a higher potential risk to the aquatic ecosystem.

TL;DR: It is suggested that vegetable crops restricting toxic metal in non-edible port may be recommended for cultivation in such metal contaminated agricultural field.

TL;DR: IBU seems to have a considerable effect on the activities of antioxidant and detoxifying enzymes as shown in the exposed specimens' notable oxidative status imbalances.

TL;DR: The toxicity of four simulated textile and tannery wastewaters was evaluated by means of a battery of seven bioassays, using organisms that belong to different trophic levels, which resulted in a synergistic effect of wastewater toxicity.

TL;DR: Nano-TiO(2) has potential to interfere with the evolutionary conserved innate immune system responses, as evidenced with observed changes in gene expression and neutrophil function, which encourages the use of fish models in the studies of nanoparticle immunotoxicity.

TL;DR: It has been concluded from the results that addition of PPVW up to 40% with CD can produce a good quality vermicompost and growth and fecundity of E. fetida was best when reared in 20% PPVW+80% CD feed mixture.

TL;DR: Model calculation indicated that dietary uptake of Zn and Cd predominate their accumulation in snapper, accounting for 99.9% and 98.2% of the total inputs.

TL;DR: The multi-biomarker approach used here suggests that in some cases clear relationships exist between genotoxic and higher level effects, which could be adopted as an integrated tool to evaluate different short and long-term toxic effects of pollutants.

TL;DR: Three-month exposure of fish to 0.001-10 mg/L of diclofenac resulted in significant decreasing trend in hatching success and delay in hatch, while fertility of the parent generation was not affected.

TL;DR: Although growth was not impaired, biochemical antioxidant indicators in liver and kidney evidenced an oxidative stress condition in HSe juveniles, suggesting that selenium supplementation levels, higher than the one employed in this study, might worsen the antioxidant status of carp.

TL;DR: There appears to be no singularly most sensitive trophic level in tests on the toxicity of alkyl sulfates, with a large degree of overlap among algae, invertebrates and fish.

TL;DR: The results suggest that nutrient uptake and secondary metabolism were actively regulated by V. natans plants in response to Pb stress.

TL;DR: The glyphosate formulation studied has a cytotoxic effect on C. kessleri through a mechanism that would involve the induction of oxidative stress, and oxidative stress parameters such as SOD and CAT activities and MDA level could be more sensitive biomarkers than usually tested growth parameters in C.Kessleri.

TL;DR: Silymarin or naringenin administration increased GSH levels and was beneficial in the recovery of altered SOD and catalase activity besides significantly reducing blood and tissue arsenic concentration, pointing to the antioxidant potential of these flavonoids.

TL;DR: Ecotoxicity profiling of the investigated samples, including cytotoxicity, chronic toxicity and EROD activity; inhibition of the multixenobiotic resistance (MXR), genotoxicity and estrogenic potential, revealed the most significant contribution of toxic compounds to be present in polar fractions.

TL;DR: Germination tests conducted using synthetic solutions confirmed that mixtures of metals have higher toxicity than the sum of their separate constituents, and could be routinely used to check the impact of industrial discharges, even when they meet regulatory requirements for the individual metals.

TL;DR: According to the CCA model, there were three levels of stresses on macroinvertebrate communities in the investigated rivers: Level 1, characterized of undisturbed or slightly polluted as in the case of CTKR; Level 2, characterized by a lower habitat quality (the JR) compared to the CT KR; and Level 3 showed severe environmental stresses (PRR, PR, and KUR) primarily contributed by agricultural, industrial, and municipal discharges.

TL;DR: Moderate pathological responses in major organs could become crucial during reproduction and under prolonged exposure periods under semi-static conditions in a freshwater perciform fish, Cichlasoma dimerus.

TL;DR: The objective of the present study was to assess the joint effect of chemical mixtures to the life--history traits of Daphnia magna Straus and it was observed that the most toxic was nickel chloride followed by thiacloprid and imidacloprid.

TL;DR: Differences in the sensitivities of species are demonstrated and the need for data on multiple species, when estimating the effects of sediment pollution on the benthic community is emphasized.

TL;DR: The results indicate that the potential for uptake and accumulation of PPCPs in plants exists, and this trophic transfer pathway should be considered when assessing exposure to certain P PCPs, particularly with the use of recycled wastewater for irrigation.