Showing papers in "Chemosphere in 2008"

TL;DR: This is the first evaluation of ZnO, CuO and TiO2 toxicity to bacteria Vibrio fischeri and crustaceans Daphnia magna and Thamnocephalus platyurus with a special emphasis on product formulations (nano or bulk oxides) and solubilization of particles.

TL;DR: The ecotoxicological studies of both drugs imply that they do not easily cause acute toxic effects at their environmental concentrations, however their chronic effects need cautious attention.

TL;DR: Analysis of absorption spectra of a yellow color solution resulting from the reaction of persulfate and iodide in the presence of sodium bicarbonate reveals an absorbance at 352 nm, without significant interferences from the reagent matrix.

TL;DR: The aim of this review is to emphasise the importance of measure as well as possible, the last stage of the biodegradation, in order to certify the integration of new materials into the biogeochemical cycles.

TL;DR: The daily intake of Hg and As through rice was much lower than the tolerable daily intakes, but bioaccumulation of HG through the food chain and intake of As from other food stuff should also be of concern.

TL;DR: Red mud presents a promising application in water treatment for removal of toxic heavy metal and metalloid ions, inorganic anions such as nitrate, fluoride, and phosphate, as well as organics including dyes, phenolic compounds and bacteria.

TL;DR: Results show that heavy metal-solubilizing and plant growth promoting bacteria are important for plant growth and heavy metal uptake which may provide a new microbial enhanced-phytoremediation of metal-polluted soils.

TL;DR: The combined treatment (composting + vermicomposting) was the most effective in terms of stabilizing the cattle manure and earthworms promoted the retention of nitrogen and gradual release of P, as well as a reduction in electrical conductivity, thereby producing improved substrates for agricultural use.

TL;DR: The toxicity of the photolysis compounds was evaluated using luminescent bacterium, and the results revealed that the toxicity increased with irradiation, indicative of a higher adversity risk of the degradation products of TC on bacteria uponphotolysis.

TL;DR: Activated carbon adsorption is a promising treatment technique for the removal of PFOS from dilute aqueous streams and displayed a superior sorptive capacity at high soluble concentrations of the surfactant.

TL;DR: Many pharmaceuticals occurred at levels exceeding predicted no-effect concentrations (PNEC), warranting further investigation of their occurrence and fate in receiving waters, as well as the overall risks they pose for local ecosystems and human residents.

TL;DR: Observations support the hypothesis that TOC plays an important role in the retention ofPAHs in soil and that PAHs are often combined with BC during combustion emissions.

TL;DR: Owing to its wide action spectrum, the metal resistant PGPB could serve as an effective metal sequestering and growth-promoting bioinoculant for plants in metal-stressed soil.

TL;DR: The results from the application of the various source identification methods showed that pyrogenic PAHs dominate soil samples collected upstream of the confluence of the Mosel and Saar Rivers, and petrogenic and pyrogenIC PAHS dominate samples downstream of the Confluence.

TL;DR: It is suggested that carbamazepine and diclofenac can be classified as slow-mobile compounds in SOM-rich soil layers when these compounds pass this layer and/or introduced into SOM-poor soils, their mobility increases significantly.

TL;DR: In this paper, the authors describe the horizontal (spatial) and vertical distribution of PFAs in ocean waters worldwide PFOS and PFOA concentrations in the North Atlantic Ocean ranged from 86 to 36pg l(-1) and from 52 to 338pg l (-1), respectively, whereas the corresponding concentrations in mid Atlantic Ocean were 13-73pg l(1) l(2) and 67-439pg l (3) respectively.

TL;DR: Results indicate that such a stacking of modified genes is capable of increasing Cd and As tolerance and accumulation in transgenic lines, and represents a highly promising new tool for use in phytoremediation efforts.

TL;DR: Fish exposed to different ammonia concentrations displayed histopathologic alterations in the gills, liver and kidney, whereas in kidney tissues hyperemia and glomerulonephritis were observed.

TL;DR: Composting can be considered as an efficient treatment to recycle this type of wastes, due to composts presented a stable and humified organic matter and without phytotoxic effects, which makes them suitable for their agronomic use.

TL;DR: Correlations of some metals and radionuclides observed for analyzed soils could be explained by their common affinity for clay minerals, but positive correlations with organic matter and clay content but not with pH have been observed for most of elements analyzed in this study.

TL;DR: Recent data for brominated flame retardants (particularly BDEs, HBCD and TBBP-A) in samples from the European and Asian environments are reviewed, including recent temporal trend studies.

TL;DR: Application of sludge increased both total and bio-available forms of metals in the soils, while lime application decreased the bioavailability of heavy metals in sludge-amended soils, so the best possible treatment may be recommended.

TL;DR: Assessment of the potential of a textile effluent contaminated with azo dyes to induce chromosomal and nuclear aberrations in Allium cepa test systems revealed a mutagenic effect of the effluent at concentrations of 10% and 100%.

TL;DR: W wastewater treatment is an efficient barrier to decrease the residual FQ levels and the number of resistant bacteria entering ambient waters and the onsite treatment of hospital wastewater before discharging into municipal sewers should be considered as a viable option and consequently implemented.

TL;DR: N-Propylsalicylaldimino-functionalized SBA-15 mesoporous silica was prepared, characterized and used as an adsorbent for heavy metal ions and showed high adsorption capacity and high selectivity for copper ions.

TL;DR: Since bioaccumulation of fluoxetine was probably dependent on pH near the pK(a) value of 10.1, experiments were conducted approximately at pH 7, 8, and 9, and distribution coefficients between 1-octanol and water (D(ow)), and those between synthetic membrane vesicles (liposomes) and water(D(lip-wat), which increased significantly with increasing pH.

TL;DR: It is concluded that siderophores promote auxin synthesis in the presence of Al(3+), Cd(2+), Cu(2+) and Ni(2%) by chelating these metals, which increases the plant growth-promoting effects of auxins, which in turn enhances the phytoremediation potential of plants.

TL;DR: Preoxidation by chlorine or ozone, chemical precipitation with aluminium sulphate and activated carbon adsorption was found to be the most efficient among the techniques studied for degrading the majority of the studied pesticides.

TL;DR: It was found that the material collected at the end of the active phase was inadequate to be applied to soil as organic amendment due to its high content of NH4+, its high level of phytotoxicity and the low degree of organic matter stability.

TL;DR: A significant amount of sulfadiazine was found tightly bound to the soil particles and did not desorb after the desorption process, and presence of manure enhanced hysteresis effect, suggesting low level sorption of sulfonamide with appreciable risk of run-off and leaching, and in turn, surface and ground water contamination.