Metabolic profiling of nanosilver toxicity in the gills of common carp.

abstract：:Activated sludge is a rich source of nitrogenous matter and has been recommended as cheap supplement in animal feed. It has been incorporated into cattle and poultry feed. It is well known that sewage of purely domestic origin is also contaminated with heavy metals, pesticides, and other organic pollutants. A study wa...

journal_title：Ecotoxicology and environmental safety

authors： Bag S,Vora T,Ghatak R,Nilufer I,D'mello D,Pereira L,Pereira J,Cutinho C,Rao V

更新日期：1999-02-01 00:00:00

abstract：:Iodinated X-ray contrast media are diagnostic pharmaceuticals that are applied to enhance the contrast between organs or vessels examined and surrounding tissues during radiography. These substances are applied in doses up to ca. 200 g per person (corresponding to approx 100 g iodine) and are rapidly excreted. In the ...

journal_title：Ecotoxicology and environmental safety

authors： Steger-Hartmann T,Länge R,Schweinfurth H

更新日期：1999-03-01 00:00:00

abstract：:Concentrations of heavy metals (Ni, Cr, Co, Zn, Mn, Pb, Cd, Cu, Hg, Fe) as well as macronutrients (P, Ca, Mg) were measured in water, bottom sediments, and plants of three lakes in West Poland (southwest of Poznan). The plants collected were Nymphaea alba, Nuphar luteum, Ceratophyllum demersum, Phragmites communis, Ty...

journal_title：Ecotoxicology and environmental safety

authors： Szymanowska A,Samecka-Cymerman A,Kempers AJ

更新日期：1999-05-01 00:00:00

abstract：:Polychlorinated biphenyl (PCB) and chlorinaed pesticide levels in eggs of two terrestrial (kestrel and sparrowhawk) and two aquatic (heron and mallard) birds were determined in inhabited areas and woodlands of Calabria. The eggs of the two terrestrial raptors were more polluted than those of the aquatic birds. Among t...

journal_title：Ecotoxicology and environmental safety

authors： Provini A,Galassi S

更新日期：1999-05-01 00:00:00

abstract：:Antibody formation, endotoxin sensitivity, and resistance to a challenge malarial infection were evaluated in mice fed a diet containing polychlorinated biphenyl (PCB) (Aroclor 1242) or hexachlorobenzene (HCB). Antibody synthesis to the antigen sheep RBC (SRBC) was significantly depressed in the PCB- and HCB-treated (...

journal_title：Ecotoxicology and environmental safety

authors： Loose LD,Pittman KA,Benitz KF,Silkworth JB,Mueller W,Coulston F

更新日期：1978-09-01 00:00:00

abstract：:The acetonitrile-sonication extraction method (US EPA SW-846 Method 8330) and aquatic-based toxicity tests were used on laboratory and field samples, to characterize the ecotoxicity of soils contaminated with energetic substances. Spiked soil studies indicated that 2,4, 6-trinitrotoluene (TNT)-dependent soil toxicity ...

journal_title：Ecotoxicology and environmental safety

authors： Sunahara GI,Dodard S,Sarrazin M,Paquet L,Hawari J,Greer CW,Ampleman G,Thiboutot S,Renoux AY

更新日期：1999-06-01 00:00:00

abstract：:Recent evidence indicates that 1,1,1-trichloro-2, 2-bis(p-chlorophenyl)ethane (DDT) and some of its metabolites alter reproductive and endocrine function in wildlife. Exposure to such endocrine-disrupting compounds during embryonic development can affect sexual differentiation. The authors tested the hypothesis that d...

journal_title：Ecotoxicology and environmental safety

authors： Portelli MJ,de Solla SR,Brooks RJ,Bishop CA

更新日期：1999-07-01 00:00:00

abstract：:In order to evaluate the toxicity of the fungicide triphenyltin acetate (TPTA) on hatching, survival, morphology, and histology of early life stages of zebrafish (Danio rerio), newly fertilized eggs were exposed to concentrations of 0.5, 5, 25, 75, and 100 microg/liter TPTA for 96 h at 28+/-0.5 degrees C. Embryos and ...

journal_title：Ecotoxicology and environmental safety

authors： Strmac M,Braunbeck T

更新日期：1999-09-01 00:00:00

abstract：:Avian species, through their trophic relationships, may represent ideal indicators for assessing environmental health. In this study several assays of immune function in young passerines are validated and compared. From 6 to 10 days of age, zebra finch nestlings (Taeniopygia guttata) were given daily oral doses of Oil...

journal_title：Ecotoxicology and environmental safety

authors： Smits JE,Williams TD

更新日期：1999-09-01 00:00:00

abstract：:Paracheirodon innesi was exposed (simultaneously or sequentially) to copper and lead in varying concentrations in a synthetic water solution. Metal accumulations in fish gills and the fish (without gills) were measured at the end of the exposure period. Results of the exposure experiment indicated that lead seems to f...

journal_title：Ecotoxicology and environmental safety

authors： Tao S,Liang T,Cao J,Dawson RW,Liu C

更新日期：1999-10-01 00:00:00

abstract：:A substantial amount of laboratory and field research on selenium effects to biota has been accomplished since the national water quality criterion was published for selenium in 1987. Many articles have documented adverse effects on biota at concentrations below the current chronic criterion of 5 microg/L. This commen...

journal_title：Ecotoxicology and environmental safety

authors： Hamilton SJ,Lemly AD

更新日期：1999-11-01 00:00:00

abstract：:Recently, there has been a trend toward less turbid water and greater light penetration in parts of western Lake Erie. This could lead to greater phototoxicity from sediment-bound polycyclic aromatic hydrocarbons. To test photosynthesis as a bioindicator of contaminant impacts on algae, water samples containing natura...

journal_title：Ecotoxicology and environmental safety

authors： Marwood CA,Smith RE,Solomon KR,Charlton MN,Greenberg BM

更新日期：1999-11-01 00:00:00

abstract：:Detectability of toxic effects by repeated doses of dimethoate (DM) and methylparathion (MPT) were investigated by geno-and immunotoxicological methods in male Wistar rats following a 28-day oral exposure. In the dose range of 28.2, 14.1, and 7.04, and 7.04 mg/kg/day DM, the two higher doses decreased the body weight ...

journal_title：Ecotoxicology and environmental safety

authors： Undeger U,Institóris L,Siroki O,Nehéz M,Dési I

更新日期：2000-01-01 00:00:00

abstract：:The nickel hazard was evaluated by means of a 7-day toxicity test with Bufo arenarum embryos. The LC(50) values for this metal from 24 to 168 h diminished from about 26 to 1.8 mg Ni(2+)/L, respectively, but from 96 h onward, the LC(50) varied very slightly. Although a noticeable difference among the LC(50) and LC(10) ...

journal_title：Ecotoxicology and environmental safety

authors： Herkovits J,Pérez-Coll CS,Herkovits FD

更新日期：2000-03-01 00:00:00

abstract：:A screening method for the evaluation of the water-extractable genotoxic potential of soil is proposed. Due to the low sensitivity of genotoxicity test systems, PAD-1 resin was used as solid phase to concentrate less hydrophilic compounds from aqueous soil extracts. Concentrated and nonconcentrated aqueous soil extrac...

journal_title：Ecotoxicology and environmental safety

authors： Ehrlichmann H,Dott W,Eisentraeger A

更新日期：2000-05-01 00:00:00

abstract：:The diagnosis of contamination and the efficiency of remediation of an industrial waste dump (IWD) were done before and after remediation. For this study, two species of snails were used for passive and active biomonitoring: a nonnative species, Helix pomatia and young garden snails (Helix aspersa aspersa) of standard...

journal_title：Ecotoxicology and environmental safety

authors： Pihan F,de Vaufleury A

更新日期：2000-06-01 00:00:00

abstract：:The ecotoxicological effects of mining effluents is coming under much greater scrutiny. It appears necessary to explore possible health effects in association with iron ore mining effluents. The present results clearly demonstrate that iron-ore leachate is not an inert media but has the potential to induce lipid perox...

journal_title：Ecotoxicology and environmental safety

authors： Hamoutene D,Rahimtula A,Payne J

更新日期：2000-06-01 00:00:00

abstract：:The histochemical and enzyme cytochemical effects of Toxaphene were investigated using isolated hepatocytes in suspension culture from laboratory-bred juvenile, female yellowtail flounder (Pleuronectes ferrugineus). Hepatocytes were kept in suspension culture for 4 days and exposed for 3 days to a control medium, to a...

journal_title：Ecotoxicology and environmental safety

authors： Fåhraeus-Van Ree GE,Spurrell DR

更新日期：2000-07-01 00:00:00

abstract：:The presence of estrogen receptors or binding proteins was demonstrated in the free-living nematode species Panagrellus redivivus and Caenorhabditis elegans by radioimmunoassay. Twenty-five nanomolar concentrations of toxaphene, dieldrin, and dieldrin plus nonylphenol significantly inhibited estrogen binding to the re...

journal_title：Ecotoxicology and environmental safety

authors： Hood TE,Calabrese EJ,Zuckerman BM

更新日期：2000-09-01 00:00:00

abstract：:Australian bass, Macquaria novemaculeata, were exposed to the water accommodated fraction (WAF) of Bass Strait crude oil, dispersed crude oil, burnt crude oil, and 4-chlorophenol. The WAF of dispersed crude oil was the most toxic treatment with 96-h LC(50) values of 7. 15% (7.94% upper and 6.42% lower 95% CI) and 7.45...

journal_title：Ecotoxicology and environmental safety

authors： Cohen AM,Nugegoda D

更新日期：2000-10-01 00:00:00

abstract：:A simple and rapid screening method using Daphnia magna Straus (water fleas) on the basis of their immobilization was developed for detecting pesticide pollution. The laboratory testing of the toxicity of 11 organophosphate insecticides to D. magna determined 50% inhibition concentration of mobility at 48 h of exposur...

journal_title：Ecotoxicology and environmental safety

authors： Kikuchi M,Sasaki Y,Wakabayashi M

更新日期：2000-11-01 00:00:00

abstract：:A batch method was developed and validated for determining the sorption coefficient (Kd) of biodegradable organic compounds to activated sludge solids using a nonspecific analytical technique, total organic carbon (TOC) analysis. In this method, activated sludge solids were first inactivated by lyophilization and dry ...

journal_title：Ecotoxicology and environmental safety

authors： Kerr KM,Larson RJ,McAvoy DC

更新日期：2000-11-01 00:00:00

abstract：:Implementing the variation within populations in ecological modeling of risk and effects of toxicants could contribute to a more sophisticated way of modeling. To give insight into the magnitude and spread in sensitivity within test populations the variation in sensitivity of individuals expressed as the slope of a co...

journal_title：Ecotoxicology and environmental safety

authors： Smit MG,Hendriks AJ,Schobben JH,Karman CC,Schobben HP

更新日期：2001-01-01 00:00:00

abstract：:Three spined sticklebacks (Gasterosteus aculeatus) were sampled from five different watercourses in Flanders (Belgium). Concentrations of cadmium, lead, copper, and zinc were measured in water, sediment, food, and fish tissues. Considered as food was the taxonomic groups of macroinvertebrates predominately present in ...

journal_title：Ecotoxicology and environmental safety

authors： Bervoets L,Blust R,Verheyen R

更新日期：2001-02-01 00:00:00

abstract：:Larval fathead minnows (Pimephales promelas) were placed at four exposure sites for 7 days in each of five lakes surrounding the Key Lake uranium mine in northern Saskatchewan, Canada. Fish placed in lakes receiving Mo-contaminated mill effluent demonstrated higher mortalities than those placed in lakes receiving Ni-c...

journal_title：Ecotoxicology and environmental safety

authors： Pyle GG,Swanson SM,Lehmkuhl DM

更新日期：2001-02-01 00:00:00

abstract：:Water bugs, Lethocerus niloticum (Hemiptera: Belostomatidae), were collected from polluted and unpolluted areas of Lake Mariut to study ultrastructural alterations of different organs as a response to mainly heavy metal water pollution in the lake. Malpighian tubules are described by light, scanning, and transmission ...

journal_title：Ecotoxicology and environmental safety

authors： Sorour J

更新日期：2001-03-01 00:00:00

abstract：:The aim of this work was to evaluate the potential of metallothionein (MT) as a bioindicator of heavy metal pollution in brown trout and European eel in the field situation. River Ferrerias (North Spain) provided a good gradient of metal contamination: concentrations of heavy metals were elevated both in water and in ...

journal_title：Ecotoxicology and environmental safety

authors： Linde AR,Sánchez-Galán S,Vallés-Mota P,García-Vázquez E

更新日期：2001-05-01 00:00:00

abstract：:The in vivo effects of parathion and endosulfan on the isopod Porcellio dilatatus were investigated. Feeding parameters (food consumption and assimilation rates), growth, and energy reserves (glycogen, lipid, and protein contents) of pesticide-exposed isopods were compared with those of control animals. Isopods were e...

journal_title：Ecotoxicology and environmental safety

authors： Ribeiro S,Sousa JP,Nogueira AJ,Soares AM

更新日期：2001-06-01 00:00:00

abstract：:A thiobencarb dose of 3 mg L(-1) reduced the protein content of Anabaena variabilis, whereas it elevated the carbohydrate content. Measurements of Anabaena growth, photosynthetic activity, and respiration rate revealed that the high dose of phosphate (0.53 mM) exerted no additional toxic effect to thiobencarb toxicity...

journal_title：Ecotoxicology and environmental safety

authors： Battah MG,Shabana EF,Kobbia IA,Eladel HM

更新日期：2001-07-01 00:00:00

abstract：:In this study, microcosm experiments were run in the laboratory to test the possibility of feeding of Daphnia parvula on toxic Microcystis aeruginosa in some Egyptian irrigation canal at Sohag city. The results demonstrated that Daphnia has a priority of feeding on green algae and the diatom Melosira granulata over to...

journal_title：Ecotoxicology and environmental safety

authors： Mohamed ZA

更新日期：2001-09-01 00:00:00