Dissipation of double-stranded RNA in aquatic microcosms.

abstract：:Pulp and paper mill effluents have been linked to effects on fish reproduction for more than 25 years. To date, the causes of these effects and remedial strategies have eluded investigators. Recent work has shown that the degree of reproductive effect caused by a mill effluent is related to the overall organic content...

journal_title：Environmental toxicology and chemistry

authors： Kovacs TG,Martel PH,O'Connor BI,Parrott JL,McMaster ME,Van Der Kraak GJ,MacLatchy DL,van den Heuvel MR,Hewitt LM

更新日期：2011-06-01 00:00:00

abstract：:Seeking to make greater use of available data for risk assessment of substances, we constructed, for the situation in which chronic data are limited or even nonexistent but acute data are relatively large, an acute to chronic transformation (ACT) methodology based on the concept of species sensitivity distributions (S...

journal_title：Environmental toxicology and chemistry

authors： Duboudin C,Ciffroy P,Magaud H

更新日期：2004-07-01 00:00:00

abstract：:We describe a highly selective and sensitive method for determination of estrone (E1) and beta-estradiol (E2) in sediments, using high-performance liquid chromatography/time-of-flight (HPLC-ToF) mass spectrometry. The method involved sequential cleanup of sediment extracts over solid phase extraction cartridges, norma...

journal_title：Environmental toxicology and chemistry

authors： Reddy S,Brownawell BJ

更新日期：2005-05-01 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：:The effects of point-source and diffuse discharges on resident populations of brown bullhead catfish (Ameiurus nebulosus (LeSueur, 1819)) in the Waikato River (New Zealand) were assessed at sites both upstream and downstream of point-source discharges. At each site, the population parameters, relative abundance, age s...

journal_title：Environmental toxicology and chemistry

authors： West DW,Ling N,Hicks BJ,Tremblay LA,Kim ND,Van den Heuvel MR

更新日期：2006-07-01 00:00:00

abstract：:Extracts of sediment samples collected from the Morava River and its tributaries (Czech Republic) were examined for mutagenic, dioxin-like, and estrogenic activities. Moreover, the human leukemic HL-60 cell line was tested as a potential model for the detection of effects of environmental contaminants on cell prolifer...

journal_title：Environmental toxicology and chemistry

authors： Vondrácek J,Machala M,Minksová K,Bláha L,Murk AJ,Kozubík A,Hofmanová J,Hilscherová K,Ulrich R,Ciganek M,Neca J,Svrcková D,Holoubek I

更新日期：2001-07-01 00:00:00

abstract：:Propiconazole is a fungicide used in a variety of agricultural applications. Preliminary studies had suggested that embryos of the crustacean Daphnia magna are particularly susceptible to the toxicity of this chemical. The goals of the present study were to define endpoints of daphnid embryonic development that could ...

journal_title：Environmental toxicology and chemistry

authors： Kast-Hutcheson K,Rider CV,LeBlanc GA

更新日期：2001-03-01 00:00:00

abstract：:Chemical monitoring data sets such as those provided by the implementation of the Water Framework Directive (WFD) offer opportunities to evaluate the ecological risks of pesticides under large spatiotemporal scales and to evaluate the protectiveness of the current prospective risk-assessment framework. As a case study...

journal_title：Environmental toxicology and chemistry

authors： Rico A,Dafouz R,Vighi M,Rodríguez-Gil JL,Daam MA

更新日期：2021-02-01 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：:Since the early 2000s, biotic ligand models and related constructs have been a dominant paradigm for risk assessment of aqueous metals in the environment. We critically review 1) the evidence for the mechanistic approach underlying metal bioavailability models; 2) considerations for the use and refinement of bioavaila...

journal_title：Environmental toxicology and chemistry

authors： Mebane CA,Chowdhury MJ,De Schamphelaere KAC,Lofts S,Paquin PR,Santore RC,Wood CM

更新日期：2020-01-01 00:00:00

abstract：:The present study assessed and compared the oxidative and reductive biotransformation of brominated flame retardants, including established polybrominated diphenyl ethers (PBDEs) and emerging decabromodiphenyl ethane (DBDPE) using an in vitro system based on liver microsomes from various arctic marine-feeding mammals:...

journal_title：Environmental toxicology and chemistry

authors： McKinney MA,Dietz R,Sonne C,De Guise S,Skirnisson K,Karlsson K,Steingrímsson E,Letcher RJ

更新日期：2011-07-01 00:00:00

abstract：:Equilibrium distribution models of hydrophobic neutral partitioning of the perfluorinated carboxylic and sulfonic acids were shown, without the need for any physical chemical properties, to successfully predict the sediment-water distribution (D(SW) ) directly from independently measured equilibrium tissue distributio...

journal_title：Environmental toxicology and chemistry

authors： Webster EM,Ellis DA

更新日期：2011-10-01 00:00:00

abstract：:A full assessment of the impact of oil and chemical spills at sea requires the identification of both the polluting chemicals and the biological effects they cause. Here, a combination of chemical fingerprinting of surface oils, tissue residue analysis, and biological effects measures was used to explore the relations...

journal_title：Environmental toxicology and chemistry

authors： Lewis C,Guitart C,Pook C,Scarlett A,Readman JW,Galloway TS

更新日期：2010-06-01 00:00:00

abstract：:A Unit World approach has been used extensively to rank chemicals for their hazards and to understand differences in chemical behavior. Whereas the fate and effects of an organic chemical in a Unit World Model (UWM) analysis vary systematically according to one variable (fraction of organic carbon), and the chemicals ...

journal_title：Environmental toxicology and chemistry

authors： Gandhi N,Bhavsar SP,Diamond ML

更新日期：2011-09-01 00:00:00

abstract：:The distribution kinetics of methylmercury (CH3Hg[II]) was determined in sheepshead minnows (Cyprinodon variegatus) after a single dose of different CH3Hg(II)-spiked food to determine what factors influence the bioavailability, uptake, and redistribution of CH3Hg(II) to various organs of C. variegatus. The kinetics of...

journal_title：Environmental toxicology and chemistry

authors： Leaner JJ,Mason RP

更新日期：2004-09-01 00:00:00

abstract：:Huge aggregations of flightless locust nymphs pose a serious threat to agriculture when they reach plague proportions but provide a very visible and nutritious resource for native birds. Locust outbreaks occur in spring and summer months in semiarid regions of Australia. Fenitrothion, an organophosphate pesticide, is ...

journal_title：Environmental toxicology and chemistry

authors： Fildes K,Astheimer LB,Story P,Buttemer WA,Hooper MJ

更新日期：2006-11-01 00:00:00

abstract：:The Strait of Georgia (British Columbia, Canada) is a hydrologically complex inland sea with a rich abundance and diversity of species of aquatic life. Marine sediments, as both a sink for hydrophobic contaminants and a potential source for aquatic food webs, were collected from 41 sites throughout the 6,900-km(2) Str...

journal_title：Environmental toxicology and chemistry

authors： Grant PB,Johannessen SC,Macdonald RW,Yunker MB,Sanborn M,Dangerfield N,Wright C,Ross PS

更新日期：2011-07-01 00:00:00

abstract：:Manufactured gas plant (MGP) tar and wastewater solids historically were discharged into the Penobscot River, Maine,USA, via a sewer at the Bangor Landing site. The tar and wastewater solids accumulated in riverbed sediment over a 5-hectare area downstream from the sewer outfall. Much of the tarry sediment is a harden...

journal_title：Environmental toxicology and chemistry

authors： McLinn EL,Stolzenburg TR

更新日期：2009-11-01 00:00:00

abstract：:The aquatic ecological environment is being threatened from overuse of pesticides, and the aquatic toxicity toward rainbow trout (Oncorhynchus mykiss) plays a significant role in environmental risk assessment of agrochemicals. In the present study, 2 norm index formulas were developed, from which several norm descript...

journal_title：Environmental toxicology and chemistry

authors： Jia Q,Liu T,Yan F,Wang Q

更新日期：2020-02-01 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：:In vitro metabolic stability assays using rainbow trout (Oncorhynchus mykiss) isolated hepatocytes (RT-HEP) or hepatic S9 fractions (RT-S9) were introduced to provide biotransformation rate data for the assessment of chemical bioaccumulation in fish. The present study explored the suitability of the RT-HEP and RT-S9 a...

journal_title：Environmental toxicology and chemistry

authors： Kropf C,Begnaud F,Gimeno S,Berthaud F,Debonneville C,Segner H

更新日期：2020-12-01 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：:Hexanitrohexaazaisowurtzitane (CL-20), a new polycyclic polynitramine, has the same functional nitramine groups (N-NO2) as the widely used energetic chemicals hexahydro-1,3,5-trinitro-1,3,5-triazacyclohexane (royal demolition explosive [RDX]) and octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (high-melting explosive...

journal_title：Environmental toxicology and chemistry

authors： Dodard SG,Sunahara GI,Kuperman RG,Sarrazin M,Gong P,Ampleman G,Thiboutot S,Hawari J

更新日期：2005-10-01 00:00:00

abstract：:Heavy metals can cause a decrease in the taxonomic diversity of soil communities. Because of functional redundancy, it remains unclear to what extent different functions performed by the soil microbial communities may be affected by pollution. We studied the impact of metal contamination on soil bacterial and fungal f...

journal_title：Environmental toxicology and chemistry

authors： Stefanowicz AM,Niklińska M,Laskowski R

更新日期：2008-03-01 00:00:00

abstract：:Metal cation toxicity to basidiomycete fungi is poorly understood, despite its well-known importance in terrestrial ecosystems. Moreover, there is no reported methodology for the routine evaluation of metal toxicity to basidiomycetes. In the present study, we describe the development of a procedure to assess the acute...

journal_title：Environmental toxicology and chemistry

authors： Mendes LF,Stevani CV

更新日期：2010-02-01 00:00:00

abstract：:Toxicity of cadmium to early life stages of brown trout (Salmo trutta) was determined at multiple water hardnesses. Increasing water hardness decreased cadmium toxicity. Postswimup fry were much more sensitive than embryos and larvae. Chronic values from early life stage tests initiated with eyed embryos were 3.52, 6....

journal_title：Environmental toxicology and chemistry

authors： Brinkman SF,Hansen DL

更新日期：2007-08-01 00:00:00

abstract：:The risk assessment of nanomaterials is essential for regulatory purposes and for sustainable nanotechnological development. Although the application of graphene oxide has been widely exploited, its environmental risk is not well understood because several environmental conditions can affect its behavior and toxicity....

journal_title：Environmental toxicology and chemistry

authors： Castro VL,Clemente Z,Jonsson C,Silva M,Vallim JH,de Medeiros AMZ,Martinez DST

更新日期：2018-07-01 00:00:00

abstract：:The increasing density of golf courses represents a potential source of sediment contamination to nearby coastal areas, the chemical and biological magnitude of which is almost unknown. The objective of this study was to determine the concentrations of contaminants and toxicities of sediments impacted by a coastal gol...

journal_title：Environmental toxicology and chemistry

authors： Lewis MA,Foss SS,Harris PS,Stanley RS,Moore JC

更新日期：2001-07-01 00:00:00

abstract：:Until recently, the behaviors of antibiotics and their ecotoxicological impact have been overlooked in the environment. The topic is broad and encompasses a wide range of organisms including microorganisms, algae, invertebrates, and vertebrates inhabiting various aquatic ecosystems. Changing the equilibrium of any 1 c...

journal_title：Environmental toxicology and chemistry

authors： Janecko N,Pokludova L,Blahova J,Svobodova Z,Literak I

更新日期：2016-11-01 00:00:00

abstract：:There is global concern regarding the fate and effects of microplastics in the environment, particularly in aquatic systems. In the present study, ethylene acrylic acid copolymer particles were evaluated in a chronic toxicity study with the aquatic invertebrate Daphnia magna. The study design included a natural partic...

journal_title：Environmental toxicology and chemistry

authors： Coady KK,Burgoon L,Doskey C,Davis JW

更新日期：2020-08-01 00:00:00