Aquatic ecotoxicity tests of some nanomaterials.

abstract：:Synthetic organic chemicals are present in environmental compartments as complex mixtures and therefore their potential effects are difficult to predict. In this study, in vitro bioassays using wild-type fish and rat hepatoma cell lines and their corresponding recombinant cell systems were used to evaluate 2,3,7,8-tet...

journal_title：Environmental toxicology and chemistry

authors： Hilscherova K,Kannan K,Kang YS,Holoubek I,Machala M,Masunaga S,Nakanishi J,Giesy JP

更新日期：2001-12-01 00:00:00

abstract：:This study investigates both the methods and the multispecies and functional level effects of a release of a complex hydrocarbon mixture from sediments using a 60-d modified mixed flask culture (MFC) microcosm. Neat Jet-A was injected and mixed into the sediment with one nondosed and three dosed concentrations. Univar...

journal_title：Environmental toxicology and chemistry

authors： Sandberg RS,Landis WG

更新日期：2001-09-01 00:00:00

abstract：:A model for risk assessment was built for simultaneous, congener-specific PCB bioaccumulation from sediment to fish to otters (Lutra lutra). Toxic equivalence factors (TEFs) were used to sum individual congeners in otters to a toxic equivalent concentration (TEQ) relative to 2,3,7,8-tetrachlorodibenzo-p-dioxin. Microb...

journal_title：Environmental toxicology and chemistry

authors： Traas TP,Luttik R,Klepper O,Beurskens JE,Smit MD,Leonards PE,van Hattum AG,Aldenberg T

更新日期：2001-01-01 00:00:00

abstract：:Ecotoxicology research on polychlorinated biphenyl (PCB) mixtures has focused principally on short-term effects on reproduction, growth, and other physiological endpoints. Latent cognitive effects from early life exposure to low-level PCBs were examined in an avian model, the European starling (Sturnus vulgaris). Thir...

journal_title：Environmental toxicology and chemistry

authors： Zahara AR,Michel NL,Flahr LM,Ejack LE,Morrissey CA

更新日期：2015-11-01 00:00:00

abstract：:To investigate possible relationships between polychlorinated biphenyl (PCB) exposure and infectious disease mortality in harbor porpoises (Phocoena phocoena) in United Kingdom waters, summed blubber concentrations of 25 chlorobiphenyl congeners (sigma25CB) in healthy harbor porpoises that died of acute physical traum...

journal_title：Environmental toxicology and chemistry

authors： Jepson PD,Bennett PM,Deaville R,Allchin CR,Baker JR,Law RJ

更新日期：2005-01-01 00:00:00

abstract：:Pacific tree frog (Hyla regilla) tadpoles were collected throughout the Sierra Nevada mountain range, California, USA, in 1996 and 1997 and analyzed for the presence of polychlorinated biphenyls (PCBs) and toxaphene. Whole-tadpole sigma PCB levels ranged from 244 ng/g (wet wt) at lower elevations on the western slope ...

journal_title：Environmental toxicology and chemistry

authors： Angermann JE,Fellers GM,Matsumura F

更新日期：2002-10-01 00:00:00

abstract：:The cellular energy allocation (CEA) methodology was used to assess the adverse effects of toxic stress on the energy budget of test organisms. This biochemical assay is quantified by determining changes in the available energy reserves, Ea (total carbohydrate, protein, and lipid content) and the energy consumption, E...

journal_title：Environmental toxicology and chemistry

authors： De Coen WM,Janssen CR

更新日期：2003-07-01 00:00:00

abstract：:DNA microarray technology enables genome-wide detection of cell response at the transcriptional level. We are planning to make bioassay systems that can detect environmental chemicals to screen for potential bioreactive agents. To develop a DNA microarray for our purposes, the changes in gene expression underlying the...

journal_title：Environmental toxicology and chemistry

authors： Momose Y,Iwahashi H

更新日期：2001-10-01 00:00:00

abstract：:The desorption behavior of benzidine from Lake Macatawa (Holland, MI, USA) sediment was investigated in this study using batch solvent extraction method. Seven solvents were tested as the extracting reagents: Deionized water (DI), calcium chloride in DI (CaCl2), sodium hydroxide in DI (NaOH), acetonitrile (ACN), a mix...

journal_title：Environmental toxicology and chemistry

authors： Chen S,Nyman MC

更新日期：2005-12-01 00:00:00

abstract：:In Nebraska, fish are exposed to herbicides in agricultural runoff. The study objectives were to determine 1) if fathead minnows and northern leopard frogs exposed to atrazine experience alterations in gene expression, and 2) whether these changes are elicited by a simulated herbicide mixture. Following a 7-d exposure...

journal_title：Environmental toxicology and chemistry

authors： Ali JM,Knight LA,D'Souza DL,Kolok AS

更新日期：2018-04-01 00:00:00

abstract：:Physical impacts of diluted bitumen (dilbit) and the application of surface washing agents (SWAs) in freshwater have not been characterized for aquatic invertebrates. These compounds are known to reduce surface tension in feather and fur microstructures of birds and mammals, and thus likely to affect buoyancy of surfa...

journal_title：Environmental toxicology and chemistry

authors： Black TA,Hanson ML,Palace VP,Rodriguez-Gil JL

更新日期：2020-12-28 00:00:00

abstract：:The dissolved uptake rate constant (k(u)), dietary assimilation efficiency (AE), and efflux rate constant (k(e)) of cadmium (Cd) and zinc (Zn) were quantified in a freshwater zooplankton Daphnia magna cultured at different ambient calcium (Ca) concentrations. The animals were first acclimated to different ambient Ca l...

journal_title：Environmental toxicology and chemistry

authors： Tan QG,Wang WX

更新日期：2008-07-01 00:00:00

abstract：:Some toxicology research in which toxicant exposures are continual (pulsed) rather than continuous have been reported. A number of toxicity models have been developed for pulsed and continuous exposures. Most of these models were developed based on one- or two-compartment, first-order toxicokinetics and were calibrate...

journal_title：Environmental toxicology and chemistry

authors： Hoang TC,Tomasso JR,Klaine SJ

更新日期：2007-01-01 00:00:00

abstract：:In ecotoxicology and aquatic ecology, we often ignore responses of individuals and focus on average responses. However, both terrestrial and aquatic animals display consistent behavioral differences between individuals. The distribution of behavioral differences within a population contains vital information for predi...

journal_title：Environmental toxicology and chemistry

authors： Heuschele J,Lode T,Andersen T,Titelman J

更新日期：2020-05-01 00:00:00

abstract：:Leeches are widespread, found in many freshwater habitats, and have diverse dietary habits. Despite their close phylogenetic relationships to Mollusca, a phylum with species affected by exogenous estrogens, it is unclear whether Hirudinea may also be impacted. A whole-lake experiment was done at the Experimental Lakes...

journal_title：Environmental toxicology and chemistry

authors： Kidd KA,Graves SD,McKee GI,Dyszy K,Podemski CL

更新日期：2020-08-01 00:00:00

abstract：:Polycyclic aromatic hydrocarbons (PAHs, n = 36) were measured in the gas and particle phases in the atmosphere and the dissolved and particle phases in the waters of the New York-New Jersey Harbor Estuary, USA, during a weeklong intensive field campaign in July 1998. Mean total (gas + particulate) phenanthrene and pyr...

journal_title：Environmental toxicology and chemistry

authors： Gigliotti CL,Brunciak PA,Dachs J,Glenn TR 4th,Nelson ED,Totten LA,Eisenreich SJ

更新日期：2002-02-01 00:00:00

abstract：:Hypothesis-based no-effect-concentration (NOEC) and regression-based x% effect concentration (ECx) values are common statistical approaches used to summarize ecotoxicological effects. Controversy over the NOEC model has prompted a movement toward discontinuation of the NOEC in favor of ECx, but the best x% effect surr...

journal_title：Environmental toxicology and chemistry

authors： Beasley A,Belanger SE,Brill JL,Otter RR

更新日期：2015-10-01 00:00:00

abstract：:Soil tests have been widely developed to predict trace metal uptake by plants. The prediction of metal toxicity, however, has rarely been tested. The present study was set up to compare 8 established soil tests for diagnosing phytotoxicity in contaminated soils. Nine soils contaminated with Zn or Cu by metal mining, s...

journal_title：Environmental toxicology and chemistry

authors： Hamels F,Malevé J,Sonnet P,Kleja DB,Smolders E

更新日期：2014-11-01 00:00:00

abstract：:Earthworms were shown to significantly avoid soils spiked with Pb at concentrations lower than or comparable to concentrations that demonstrate significant effects for other endpoints. It was also shown that inclusion of a microorganism-produced volatile compound that attracts earthworms, ethyl valerate, decreased avo...

journal_title：Environmental toxicology and chemistry

authors： Syed Z,Alexander D,Ali J,Unrine J,Shoults-Wilson WA

更新日期：2017-04-01 00:00:00

abstract：:Extensive industrial areas in headwater stream watersheds can severely impact the physical condition of streams and introduce contaminants. We compared 3 streams that received stormwater runoff and industrial effluents from industrial complexes to 2 reference streams. Reference streams provide a benchmark of compariso...

journal_title：Environmental toxicology and chemistry

authors： Fletcher DE,Lindell AH,Seaman JC,Stankus PT,Fletcher ND,Barton CD,Biemiller RA,McArthur JV

更新日期：2019-01-01 00:00:00

abstract：:This study investigates reproductive impairment and biochemical changes in fathead minnow (Pimephales promelas) exposed for 39 d to varying concentrations of perfluorooctanoic acid (PFOA) under microcosm conditions. While the concentrations tested in this study were much higher than those normally found in the environ...

journal_title：Environmental toxicology and chemistry

authors： Oakes KD,Sibley PK,Solomon KR,Mabury SA,Van der Kraak GJ

更新日期：2004-08-01 00:00:00

abstract：:In this study, mixtures of five herbicide-formulated products (atrazine, dicamba, fluometuron, metolachlor, and sulfentrazone) were applied to soil microcosm columns in increasing concentrations. The toxic impact of herbicides on the indigenous beta-subclass Proteobacteria autotrophic ammonia-oxidizer (beta-AAO) commu...

journal_title：Environmental toxicology and chemistry

authors： Chang YJ,Hussain AK,Stephen JR,Mullen MD,White DC,Peacock A

更新日期：2001-11-01 00:00:00

abstract：:Sediments in urban waterways of Guangzhou, China, were contaminated by a variety of chemicals and showed prevalent toxicity to benthic organisms. A combination of whole-sediment toxicity identification evaluation (TIE) and bioavailability-based extraction was used to identify the causes of sediment toxicity. Of the 6 ...

journal_title：Environmental toxicology and chemistry

authors： Yi X,Li H,Ma P,You J

更新日期：2015-08-01 00:00:00

abstract：:The authors used 5 species of periphytic algae to conduct toxicity assays of 20 herbicides. The 5 tested species represent riverine primary producers most likely to be affected by herbicides. A fluorescence microplate toxicity assay was used as an efficient and economical high-throughput assay. Toxicity characteristic...

journal_title：Environmental toxicology and chemistry

authors： Nagai T,Taya K,Yoda I

更新日期：2016-02-01 00:00:00

abstract：:Phytochelatins are small, intracellular, metal-binding polypeptides produced by algae on exposure to increased metal concentration in their environment. The aim of the present study was to examine the relationship between phytochelatin concentration, bioaccumulated metal, and sensitivity of algal growth on cadmium exp...

journal_title：Environmental toxicology and chemistry

authors： Le Faucheur S,Behra R,Sigg L

更新日期：2005-07-01 00:00:00

abstract：:In tissues of freshwater fish-feeding mammals, 3,4-didehydroretinol (A2) is a major form of vitamin A. In mink liver, with organochlorine exposure, this analog has been found to decrease more than retinol (A1) and thus has potential as a sensitive freshwater biomarker. The presence of the analogs A1 and A2 as alcohol ...

journal_title：Environmental toxicology and chemistry

authors： Käkelä A,Käkelä R,Hyvärinen H

更新日期：2002-02-01 00:00:00

abstract：:Using an ion-exchange-based solid-phase microextraction (SPME) method, the freely dissolved concentrations of C12-benzalkonium were measured in different toxicity assays, including 1) immobilization of Daphnia magna in the presence or absence of dissolved humic acid; 2) mortality of Lumbriculus variegatus in the prese...

journal_title：Environmental toxicology and chemistry

authors： Chen Y,Geurts M,Sjollema SB,Kramer NI,Hermens JL,Droge ST

更新日期：2014-03-01 00:00:00

abstract：:Acute and chronic bioassays were used to evaluate the lethal and sublethal effects of copper chloride and tributyltin chloride on mahi mahi (Coryphaena hippurus) embryos, a pelagic life stage often found in the surface microlayer where anthropogenic contaminants can accumulate. Acute bioassay testing determined the me...

journal_title：Environmental toxicology and chemistry

authors： Adema-Hannes R,Shenker J

更新日期：2008-10-01 00:00:00

abstract：:Diclofenac is a nonsteroidal anti-inflammatory drug (NSAID) that has been detected widely in surface waters in North America and Europe. The impact of diclofenac on river biofilm communities was investigated at exposures of 10 and 100 microg L(-1) of diclofenac or its molar equivalent in carbon and nutrients. Experime...

journal_title：Environmental toxicology and chemistry

authors： Lawrence JR,Swerhone GD,Topp E,Korber DR,Neu TR,Wassenaar LI

更新日期：2007-04-01 00:00:00

abstract：:Concentrations of hydrophobic organic contaminants in zooplankton have been hypothesized to be governed by either near-equilibrium partitioning with surrounding water, growth dilution, or biomagnification. Concentrations of 17 polychlorinated biphenyls (PCBs) were measured in size-fractionated zooplankton, in phytopla...

journal_title：Environmental toxicology and chemistry

authors： Sobek A,Reigstad M,Gustafsson O

更新日期：2006-07-01 00:00:00