Methoprene and 20-OH-ecdysone affect male production in Daphnia pulex.

abstract：:Pharmaceuticals and personal care products (PPCPs) such as caffeine and sulfamethoxazole have been detected in the estuarine environment. The present study characterized effects of a maternal exposure of these compounds on the development of the daggerblade grass shrimp Palaemonetes pugio from embryo to juvenile life ...

journal_title：Environmental toxicology and chemistry

authors： Garcia RN,Chung KW,DeLorenzo ME,Curran MC

更新日期：2014-09-01 00:00:00

abstract：:Effects of three photosystem II inhibitors and of their mixture on a freshwater phytoplankton community were studied in outdoor mesocosms. Atrazine, isoproturon, and diuron were applied as 30% hazardous concentrations (HC30s) obtained from species-sensitivity distributions. Taking concentration addition into account, ...

journal_title：Environmental toxicology and chemistry

authors： Knauert S,Dawo U,Hollender J,Hommen U,Knauer K

更新日期：2009-04-01 00:00:00

abstract：:Organic compounds in sediments are known to distribute between rapid, slowly, and very slowly desorbing sites. This distribution is relevant to bioavailability and risk assessment of organic compounds in sediment. In this study, the fraction desorbing to Tenax in 6 h was measured for a range of organic compounds in se...

journal_title：Environmental toxicology and chemistry

authors： van Noort PC,Cornelissen G,ten HT,Belfoid A

更新日期：2002-11-01 00:00:00

abstract：:Based on weight loss in water, 24 h is recommended for Tubifex tubifex gut clearance. Biota-to-sediment accumulation factors (BSAFs) in gut-cleared T. tubifex following six weeks of exposure to Cd-, Ni-, and Pb-spiked sediment were 12.4, 3.0, and 19.0, respectively. Tissue Ni concentrations peaked after 12 h, whereas ...

journal_title：Environmental toxicology and chemistry

authors： Gillis PL,Dixon DG,Borgmann U,Reynoldson TB

更新日期：2004-01-01 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：:Intersex in wild fish populations has received considerable attention in the scientific literature and public media. Conventional detection of testicular oocytes, the presence of immature oocytes within testis of male fish, commonly employs transverse sectioning of excised testis and is lethal. The present study used ...

journal_title：Environmental toxicology and chemistry

authors： MacLeod AH,Blazer VS,Matsche MA,Yonkos LT

更新日期：2017-07-01 00:00:00

abstract：:The present study evaluated Se bioaccumulation in four waterbird species (n=206 birds) that breed within San Francisco Bay, California, U.S.A.: American avocets (Recurvirostra americana), black-necked stilts (Himantopus mexicanus), Forster's terns (Sterna forsteri), and Caspian terns (Hydroprogne caspia). Selenium con...

journal_title：Environmental toxicology and chemistry

authors： Ackerman JT,Eagles-Smith CA

更新日期：2009-10-01 00:00:00

abstract：:Polycyclic aromatic hydrocarbons (PAHs) and herbicides are important contaminants of world water systems with effects on aquatic organisms. The uptake of naphthalene, anthracene, and chrysene by gills of the bivalve mollusk Elliptio complanata was determined. Additionally, the effects of paraquat, atrazine, alachlor, ...

journal_title：Environmental toxicology and chemistry

authors： Birdsall K,Kukor JJ,Cheney MA

更新日期：2001-02-01 00:00:00

abstract：:A hybrid model based on the positive matrix factorization (PMF) model and the health risk assessment model for assessing risks associated with sources of perfluoroalkyl substances (PFASs) in water was established and applied at Dianchi Lake to test its applicability. The new method contains 2 stages: 1) the sources of...

journal_title：Environmental toxicology and chemistry

authors： Xu J,Shi GL,Guo CS,Wang HT,Tian YZ,Huangfu YQ,Zhang Y,Feng YC,Xu J

更新日期：2018-01-01 00:00:00

abstract：:The objective of this study was to investigate the fate and removal of triclosan (TCS; 5-chloro-2-[2,4-dichloro-phenoxy]-phenol), an antimicrobial agent used in a variety of household and personal-care products, in wastewater treatment systems. This objective was accomplished by monitoring the environmental concentrat...

journal_title：Environmental toxicology and chemistry

authors： McAvoy DC,Schatowitz B,Jacob M,Hauk A,Eckhoff WS

更新日期：2002-07-01 00:00:00

abstract：:Hydrocarbon-inducible cytochrome P4501A (CYP1A) expression was measured, as ethoxyresorufin-O-deethylase (EROD) activity, in livers of wintering harlequin ducks (Histrionicus histrionicus) captured in areas of Prince William Sound, Alaska, USA, oiled by the 1989 Exxon Valdez spill and in birds from nearby unoiled area...

journal_title：Environmental toxicology and chemistry

authors： Esler D,Trust KA,Ballachey BE,Iverson SA,Lewis TL,Rizzolo DJ,Mulcahy DM,Miles AK,Woodin BR,Stegeman JJ,Henderson JD,Wilson BW

更新日期：2010-05-01 00:00:00

abstract：:Increased temperature and other environmental effects of global climate change (GCC) have documented impacts on many species (e.g., polar bears, amphibians, coral reefs) as well as on ecosystem processes and species interactions (e.g., the timing of predator-prey interactions). A challenge for ecotoxicologists is to p...

journal_title：Environmental toxicology and chemistry

authors： Moe SJ,De Schamphelaere K,Clements WH,Sorensen MT,Van den Brink PJ,Liess M

更新日期：2013-01-01 00:00:00

abstract：:The avian embryo is an excellent model for testing adverse developmental effects of environmental chemicals as well as uptake and movement of xenobiotics within the egg compartments. Before incubation at embryonic day 0, 14 C 3,3',4,4'-tetrachlorobiphenyl (14 C PCB 77) was injected into Japanese quail eggs either onto...

journal_title：Environmental toxicology and chemistry

authors： Dean KM,Baltos LD,Marcell AM,Bohannon MEB,Iwaniuk AN,Ottinger MA

更新日期：2018-01-01 00:00:00

abstract：:Polycyclic musks were measured in surface sediments collected from the Pearl River Delta and Macao coastal region, South China, to investigate contamination from domestic sewage. Three polycyclic musk compounds-4-acetyl-1,1-dimethyl-6-tert-butylindan, 1,3,4,6,7,8-hexahydro-4,6,6,7,8,8-hexamethylcyclopenta(g)-2-benzopy...

journal_title：Environmental toxicology and chemistry

authors： Zeng X,Mai B,Sheng G,Luo X,Shao W,An T,Fu J

更新日期：2008-01-01 00:00:00

abstract：:Few studies have investigated the effects of mercury (Hg) on wild fish from remote areas, even though these fish can have high total Hg concentrations. In Kejimkujik National Park and National Historic Site (KNPNHS), Nova Scotia, Canada, concentrations of total Hg in many yellow perch (Perca flavescens) currently exce...

journal_title：Environmental toxicology and chemistry

authors： Batchelar KL,Kidd KA,Drevnick PE,Munkittrick KR,Burgess NM,Roberts AP,Smith JD

更新日期：2013-03-01 00:00:00

abstract：:Silver nanoparticles (AgNPs) from industrial use, discharged via the land application of sewage sludge, are interacting with soil biota, including earthworms. In affected organisms, excessive production of reactive oxygen species can result in lipid peroxidation, shifting the balance between oxidants and antioxidants ...

journal_title：Environmental toxicology and chemistry

authors： Saleeb N,Robinson B,Cavanagh J,Ross J,Munir K,Gooneratne R

更新日期：2020-05-01 00:00:00

abstract：:Many chiral pesticides are introduced into the environment as racemates, although their pesticidal activity is usually the result of preferential reactivity of only one enantiomer, while the other enantiomer may have toxic effects against nontarget organisms. Methamidophos (O,S-dimethyl phosphoramidothioate), a chiral...

journal_title：Environmental toxicology and chemistry

authors： Emerick GL,Oliveira RV,Belaz KR,Gonçalves M,DeOliveira GH

更新日期：2012-02-01 00:00:00

abstract：:Recent studies have found a correlation between organophosphate (OP) pesticide exposure and declines in amphibian populations. We evaluated the hypothesis that this relationship is driven by behavioral changes in developing larvae. Specifically, we examined how exposure to a common OP pesticide, chlorpyrifos, influenc...

journal_title：Environmental toxicology and chemistry

authors： Widder PD,Bidwell JR

更新日期：2006-09-01 00:00:00

abstract：:The assessment of chemicals as bioaccumulative in the regulatory process makes use of the bioconcentration factor as a metric. However, this metric does not account for the dietary uptake route and therefore cannot be applied to terrestrial food chains. In recent years, the biomagnification factor (BMF) and the trophi...

journal_title：Environmental toxicology and chemistry

authors： Goss KU,Brown TN,Endo S

更新日期：2013-07-01 00:00:00

abstract：:The effects of antidepressants on wildlife are currently raising some concern because of an increased number of publications indicating biological effects at environmentally relevant concentrations (<100 ng/L). These results have been met with some scepticism because of the higher concentrations required to detect eff...

journal_title：Environmental toxicology and chemistry

authors： Ford AT,Fong PP

更新日期：2016-04-01 00:00:00

abstract：:Because fish represent the principal methylmercury (MeHg) pool in the water column of freshwater systems, MeHg released from their carcasses could represent an important flux to the environment. Necrophagous invertebrates such as fly larvae can play an important role in this Hg recycling. We studied Hg accumulation by...

journal_title：Environmental toxicology and chemistry

authors： Sarica J,Amyot M,Bey J,Hare L

更新日期：2005-03-01 00:00:00

abstract：:Ecological risk assessments for chemical stressors are used to establish linkages between likely exposure concentrations and adverse effects to ecological receptors. At times, it is useful to conduct screening risk assessments to assist in prioritizing or ranking chemicals on the basis of potential hazard and exposure...

journal_title：Environmental toxicology and chemistry

authors： Russom CL,Breton RL,Walker JD,Bradbury SP

更新日期：2003-08-01 00:00:00

abstract：:Microplastics are emerging threat contaminants that have been shown to provide toxic pollutants, either from the environment or from their inherent toxic monomers and additives, a pathway into the aquatic food web. In the present study, the occurrence, abundance, and composition of microplastic load in the surface wat...

journal_title：Environmental toxicology and chemistry

authors： Migwi FK,Ogunah JA,Kiratu JM

更新日期：2020-04-01 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 this work, susceptibility to oxidative stress was analyzed under laboratory conditions in the European eel Anguilla anguilla. Eels were treated with increasing concentrations of benchmark environmental pollutants, namely, benzo[a]pyrene ([BaP], at 0, 0.1, 1, 10, and 50 mg/kg), beta-naphthoflavone ([BNF], at 0, 0.1,...

journal_title：Environmental toxicology and chemistry

authors： Regoli F,Winston GW,Gorbi S,Frenzilli G,Nigro M,Corsi I,Focardi S

更新日期：2003-09-01 00:00:00

abstract：:Six-month-old lesser scaup (Aythya affinis) and nestling tree swallows (Tachycineta bicolor) were injected intraperitoneally with beta-naphthoflavone (BNF) in corn oil or in vehicle alone. Liver samples were taken and stored at -80 degrees C until microsome preparation and monooxygenase assay. Skin samples were placed...

journal_title：Environmental toxicology and chemistry

authors： Melancon MJ,Kutay AL,Woodin BR,Stegeman JJ

更新日期：2006-10-01 00:00:00

abstract：:To evaluate the use of morphological abnormalities for standard testing of endocrine-disrupting substances (EDS), we tested the hypothesis that developmental abnormalities are a sensitive indicator of exposure to waterborne estrogenic and antiestrogenic EDS during embryonic, larval, and juvenile stages in the common e...

journal_title：Environmental toxicology and chemistry

authors： Boudreau M,Courtenay SC,MacLatchy DL,Bérubé CH,Parrott JL,Van der Kraak GJ

更新日期：2004-02-01 00:00:00

abstract：:Waterborne Cu effects on the transcription of genes encoding ion-transporting proteins and the activities of these proteins were evaluated in gills of the blue crab Callinectes sapidus acclimated to diluted (2‰) and full (30‰) seawater. Crabs were exposed (96 h) to an environmentally relevant concentration of dissolve...

journal_title：Environmental toxicology and chemistry

authors： Martins CM,Almeida DV,Marins LF,Bianchini A

更新日期：2011-01-01 00:00:00

abstract：:Soils and sediments in the floodplain of the Tittabawassee River downstream of Midland, Michigan, USA contain elevated concentrations of polychlorinated dibenzofurans (PCDF) and polychlorinated dibenzo-p-dioxins (PCDD). As a long-lived, resident top predator, the great horned owl (Bubo virginianus; GHO) has the potent...

journal_title：Environmental toxicology and chemistry

authors： Coefield SJ,Zwiernik MJ,Fredricks TB,Seston RM,Nadeau MW,Tazelaar DL,Moore JN,Kay DP,Roark SA,Giesy JP

更新日期：2010-10-01 00:00:00

abstract：:Agriculture within the Great Barrier Reef catchment area has contributed to pesticide contamination of adjacent freshwater ecosystems that flow into the Great Barrier Reef World Heritage Area. A novel multispecies toxicity test was used to assess the toxicity of diuron and hexazinone, 2 herbicides commonly detected wi...

journal_title：Environmental toxicology and chemistry

authors： Stone S,Adams MS,Stauber JL,Jolley DF,Warne MSJ

更新日期：2021-02-01 00:00:00