Field survey of Canadian background soils: Implications for a new mathematical gas chromatography-flame ionization detection approach for resolving false detections of petroleum hydrocarbons in clean soils.

abstract：:In the Midwestern United States, waterways such as the Elkhorn River experience an annual spring pulse of runoff that carries sediments, nutrients, and organic compounds downstream. The objective of the present study was to elucidate relationships between contaminant load in Elkhorn River water and biological impacts ...

journal_title：Environmental toxicology and chemistry

authors： Ali JM,Kolok AS

更新日期：2015-06-01 00:00:00

abstract：:Soot, soot-amended sediment, and unamended sediment spiked with hydrophobic organic contaminants (HOC) were subjected to laboratory desorption and assimilation efficiency experiments in an effort to assess and compare the importance of soot in controlling HOC desorption and deposit-feeder assimilation efficiency. Thre...

journal_title：Environmental toxicology and chemistry

authors： Lamoureux EM,Brownawell BJ

更新日期：2004-11-01 00:00:00

abstract：:The present study reports a 48-h aquatic metal-toxicity assay based on daily growth rates of the red seaweed Gracilaria domingensis (Gracilariales, Rhodophyta) in synthetic seawater. The median inhibitory concentration (IC50) for each metal cation was experimentally determined, and the ratios of free ions (aqueous com...

journal_title：Environmental toxicology and chemistry

authors： Mendes LF,Zambotti-Villela L,Yokoya NS,Bastos EL,Stevani CV,Colepicolo P

更新日期：2013-11-01 00:00:00

abstract：:Most toxicity tests investigate constant concentrations of a chemical. Concentrations of many compounds in the environment are dynamic, however, and individuals may be more sensitive to pulses of a chemical initiated at specific points during development. Realistic toxicity tests are important to accurately assess the...

journal_title：Environmental toxicology and chemistry

authors： Earl JE,Whiteman HH

更新日期：2009-06-01 00:00:00

abstract：:A method is presented for extending the target lipid model (TLM) of narcotic toxicity to polar narcotic chemicals. The proposed polyparameter TLM extends the applicability of the TLM by including polar compounds and removing explicit chemical class corrections. The validity of the model is tested using a data set of 1...

journal_title：Environmental toxicology and chemistry

authors： Kipka U,Di Toro DM

更新日期：2009-07-01 00:00:00

abstract：:The lipid-lowering agents bezafibrate and clofibric acid, which occur at concentrations up to 3.1 and 1.6 microg/L, respectively, are among the most frequently found human pharmaceuticals in the aquatic environment. In contrast to knowledge about their environmental occurrence, little is known about their effects in t...

journal_title：Environmental toxicology and chemistry

authors： Weston A,Caminada D,Galicia H,Fent K

更新日期：2009-12-01 00:00:00

abstract：:Isothiocyanates of natural origin produced by the hydrolysis of plant-produced glucosinolates have the potential to control soil pests, but getting sufficiently high isothiocyanate concentrations in soil is difficult. Furthermore, the isothiocyanates have proven toxic to a wide range of organisms and hence may also ha...

journal_title：Environmental toxicology and chemistry

authors： Gimsing AL,Strobel BW,Hansen HC

更新日期：2009-06-01 00:00:00

abstract：:Soil column experiments were conducted to investigate the release of aged organic contaminants (adsorbable organohalogens, [AOX]) and the potential effects of microbial turnover of soil organic matter onto the contaminant release from two different soils of former wastewater infiltration sites. Under reference conditi...

journal_title：Environmental toxicology and chemistry

authors： Reemtsma T,Savric I,Jekel M

更新日期：2003-04-01 00:00:00

abstract：:A meta-analysis was conducted of studies that reported behavior and chemo/mechanosensory responses by fish, amphibians, and aquatic invertebrates in Cu-containing waters and also reported sufficient water chemistry for calculation of hardness-based and biotic ligand model (BLM)-based water quality criteria (WQC) for C...

journal_title：Environmental toxicology and chemistry

authors： Meyer JS,DeForest DK

更新日期：2018-05-01 00:00:00

abstract：:Wetlands are important habitats and spawning grounds to a diverse wildlife population and are particularly vulnerable to adverse effects of endocrine disruptors. Many pesticides possess hormonal activity and have thus been classified as endocrine disruptors. A new analytical method based on ultrasonic-assisted extract...

journal_title：Environmental toxicology and chemistry

authors： Xue N,Li F,Hou H,Li B

更新日期：2008-05-01 00:00:00

abstract：:A field monitoring campaign investigating the suitability of (Cd, Zn)-metallothionein concentrations (MTs) in different tissues of the gudgeon as a biomarker for metal contamination in the aquatic environment was conducted. Gudgeons were captured at 10 sampling sites on a river system in Flanders (Belgium). Nine sampl...

journal_title：Environmental toxicology and chemistry

authors： Van Campenhout K,Bervoets L,Blust R

更新日期：2003-07-01 00:00:00

abstract：:Recent laboratory investigations into the bioaccumulation and toxicity of polycyclic aromatic hydrocarbons (PAH) have focused on low-level, time-variable exposures to early life-stage fish. Polycyclic aromatic hydrocarbon body-burden residues reported in these studies were lower than critical body-burden residues pred...

journal_title：Environmental toxicology and chemistry

authors： Mathew R,McGrath JA,Di Toro DM

更新日期：2008-07-01 00:00:00

abstract：:Avian mortality events are common following large-scale oil spills. However, the sublethal effects of oil on birds exposed to light external oiling are not clearly understood. We found that American oystercatchers (area of potential impact n = 42, reference n = 21), black skimmers (area of potential impact n = 121, re...

journal_title：Environmental toxicology and chemistry

authors： Fallon JA,Smith EP,Schoch N,Paruk JD,Adams EA,Evers DC,Jodice PGR,Perkins C,Schulte S,Hopkins WA

更新日期：2018-02-01 00:00:00

abstract：:As contaminant exposures in aquatic ecosystems continue to increase, the need for streamlining research efforts in environmental toxicology using predictive frameworks also grows. One such framework is the adverse outcome pathway (AOP). An AOP framework organizes and utilizes toxicological information to connect measu...

journal_title：Environmental toxicology and chemistry

authors： Khan B,Ho KT,Burgess RM

更新日期：2020-08-01 00:00:00

abstract：:Diluted bitumen (dilbit; the product of oil sands extraction) is transported through freshwater ecosystems critical to Pacific salmon. This is concerning, because crude oil disrupts cardiac development, morphology, and function in embryonic fish, and cardiac impairment in salmon can have major consequences on migrator...

journal_title：Environmental toxicology and chemistry

authors： Alderman SL,Lin F,Farrell AP,Kennedy CJ,Gillis TE

更新日期：2017-02-01 00:00:00

abstract：:A bleached kraft pulp mill discharging effluent to the Mattagami River in northern Ontario, Canada, closed after almost 90 yr of operation. During its operation, effluent from the mill influenced biota in the downstream areas. To assess shifts in the reliance of biota from mill-derived nutrients, the isotopic composit...

journal_title：Environmental toxicology and chemistry

authors： McMahon HM,Arciszewski TJ,Munkittrick KR,Kidd KA

更新日期：2020-05-01 00:00:00

abstract：:As technological interest and environmental emissions of the rare earth elements increase, it is becoming more important to assess their potential environmental impact. Samarium (Sm) is a lanthanide of intermediate molar mass that is used in numerous high-technology applications including wind turbines, solar panels, ...

journal_title：Environmental toxicology and chemistry

authors： Rowell JA,Fillion MA,Smith S,Wilkinson KJ

更新日期：2018-06-01 00:00:00

abstract：:Radiotracer experiments were conducted to examine the influence of the concentration of Cd, Se, and Zn in ingested phytoplankton (dinoflagellate Prorocentrum minimum and diatom Thalassiosira weissflogii) and in ambient seawater on metal assimilation and elimination efficiencies of three marine copepods, Acartia spinic...

journal_title：Environmental toxicology and chemistry

authors： Xu Y,Wang WX,Hsieh DP

更新日期：2001-05-01 00:00:00

abstract：:The authors implemented a fractal algorithm in a spatially explicit individual-based model to generate landscapes with different microscale patterns of habitat fragmentation and disturbance events and studied their effects on population dynamics of the collembolan Folsomia candida. Among human activities that may caus...

journal_title：Environmental toxicology and chemistry

authors： Meli M,Palmqvist A,Forbes VE

更新日期：2014-07-01 00:00:00

abstract：:It has been argued that current approaches for ecological risk assessment (ERA) do not provide value relevance for risk managers and that the uncertainty in the predictions is large. One important reason for this is that current approaches are based on individual-level endpoints, but the environmental protection goals...

journal_title：Environmental toxicology and chemistry

authors： Hanson N,Stark JD

更新日期：2011-10-01 00:00:00

abstract：:Strong positive correlations between selenium (Se) and total mercury (HgT) contents in the liver of marine mammals and mercury mine workers in modern times have been documented in numerous investigations. Herein, we report a positive correlation between Se and HgT concentrations over the past 1,500 years in the seal h...

journal_title：Environmental toxicology and chemistry

authors： Yin X,Sun L,Zhu R,Liu X,Ruan D,Wang Y

更新日期：2007-03-01 00:00:00

abstract：:Although the estrogenic hormones 17 beta-estradiol and 17 alpha-ethinyl estradiol can be quantified in polluted waters by gas chromatography/mass spectrometry (GC/MS) and gas chromatography/tandem mass spectrometry (GC/MS/MS), the compounds often are present at concentrations below detection limits. Enzyme-linked immu...

journal_title：Environmental toxicology and chemistry

authors： Huang CH,Sedlak DL

更新日期：2001-01-01 00:00:00

abstract：:The internalized speciation of lead in roots and leaves of Sesbania drummondii, a lead hyperaccumulator, grown in lead nitrate solution was studied using x-ray absorption near-edge structure and extended x-ray absorption fine structure. Lead was predominantly present as lead acetate in both plant tissues. The other do...

journal_title：Environmental toxicology and chemistry

authors： Sharma NC,Gardea-Torresdey JL,Parsons J,Sahi SV

更新日期：2004-09-01 00:00:00

abstract：:A method is presented for developing scientifically defensible, numeric guidelines for residual petroleum-related constituents, specifically monocyclic aromatic hydrocarbons (MAHs) and polycyclic aromatic hydrocarbons (PAHs), in the water column. The guidelines are equivalent to a HC5 (i.e., hazard concentration to 5%...

journal_title：Environmental toxicology and chemistry

authors： McGrath JA,Di Toro DM

更新日期：2009-06-01 00:00:00

abstract：:Co-occurrence of pyrethroids and metals in watersheds previously has been reported to pose great risk to aquatic species. Pyrethroids are a class of chiral insecticides that have been shown to have enantioselective toxicity and biotransformation. However, the influence of metals on enantioselectivity of pyrethroids ha...

journal_title：Environmental toxicology and chemistry

authors： Yang Y,Ji D,Huang X,Zhang J,Liu J

更新日期：2017-08-01 00:00:00

abstract：:The sublethal effects of lead (Pb) on the earthworm Eisenia fetida were evaluated in the laboratory using freshly spiked soil and soil collected from Canadian prairie skeet ranges. After a four-week exposure to soil spiked with lead acetate, earthworm neutral red retention time (NRRT). soil Pb concentrations, and eart...

journal_title：Environmental toxicology and chemistry

authors： Booth L,Palasz F,Darling C,Lanno R,Wickstrom M

更新日期：2003-10-01 00:00:00

abstract：:Most studies examining the influence of ecological characteristics of fish on Hg concentration in fish tissues have focused on a few variables and been conducted in northern ecosystems. We examined how total length (TL), age, food-web position (estimated using delta13C and delta15N), and habitat were related to total ...

journal_title：Environmental toxicology and chemistry

authors： Chumchal MM,Hambright KD

更新日期：2009-05-01 00:00:00

abstract：:Cytochrome P4501A (CYP1A) induction was evaluated in the rat hepatoma cell line H4IIE as a biomarker of exposure to organic compounds. The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazoliumbromide assay was performed to assess the viability of cells exposed to environmentally relevant concentrations of cadmium. Cad...

journal_title：Environmental toxicology and chemistry

authors： Jensen MH,Krøkje A

更新日期：2008-08-01 00:00:00

abstract：:The bioconcentration and elimination of avermectin B1 in sturgeon muscle were investigated with high-performance liquid chromatography. Mean concentrations of 0.2 and 1 ng x ml(-1) in water were maintained for a 22-d exposure period. The concentrations of avermectin B1alpha in muscle tissues reached steady state withi...

journal_title：Environmental toxicology and chemistry

authors： Shen J,Zhang Q,Ding S,Zhang S,Coats JR

更新日期：2005-02-01 00:00:00

abstract：:We raised embryos and tadpoles of green frogs (Rana clamitans melanota) and leopard frogs (R. pipiens) in situ along a contamination gradient in the Fox River/Green Bay ecosystem (WI, USA). Differences in exposure were reflected by significant positive regressions between concentrations in sediment and in frogs of pol...

journal_title：Environmental toxicology and chemistry

authors： Karasov WH,Jung RE,Langenberg SV,Bergeson TL

更新日期：2005-04-01 00:00:00