Rapid settling of nanoparticles due to heteroaggregation with suspended sediment.

abstract：:We evaluated the influence of waterborne and dietary lead (Pb) exposure on the acute and chronic toxicity of Pb to the amphipod Hyalella azteca. Test solutions were generated by a modified diluter with an extended (24-h) equilibration period. Acute (96-h) toxicity of Pb varied with water hardness in the range of 71 to...

journal_title：Environmental toxicology and chemistry

authors： Besser JM,Brumbaugh WG,Brunson EL,Ingersoll CG

更新日期：2005-07-01 00:00:00

abstract：:The main objective of the present study was to derive ecologically relevant effect threshold concentrations of (dissolved) Pb for selected European Union (EU) freshwater rivers, using the 2008 EU Voluntary Risk Assessment Report as a starting point and more advanced methodologies than those used in the Voluntary Risk ...

journal_title：Environmental toxicology and chemistry

authors： Van Sprang PA,Nys C,Blust RJ,Chowdhury J,Gustafsson JP,Janssen CJ,De Schamphelaere KA

更新日期：2016-05-01 00:00:00

abstract：:Methods for the assessment of ecological risks associated with exposure to defined mixtures of toxicants are reviewed and formalized for single-species toxicity. Depending on the modes of action of toxicants in a mixture, these methods apply either the model for concentration additivity (CA) or the model for response ...

journal_title：Environmental toxicology and chemistry

authors： De Zwart D,Posthuma L

更新日期：2005-10-01 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：:Little work has been conducted on the adsorption of arsenic to the mixed iron [Fe(II)/(III)] oxide magnetite and the effect that environmental parameters, such as pH, ionic strength, and temperature, have on adsorption. Magnetite nanoparticles are unique because of their affinity for both arsenate and arsenite and inc...

journal_title：Environmental toxicology and chemistry

authors： Shipley HJ,Yean S,Kan AT,Tomson MB

更新日期：2009-03-01 00:00:00

abstract：:In some kinetic studies with aquatic invertebrates, the bioaccumulation of polyaromatic hydrocarbons (PAHs) has been observed to peak at the beginning of the test. This has been explained by the depletion of PAHs from pore water due to limited desorption during the bioaccumulation test or, alternatively, by the activa...

journal_title：Environmental toxicology and chemistry

authors： Lyytikäinen M,Pehkonen S,Akkanen J,Leppänen M,Kukkonen JV

更新日期：2007-12-01 00:00:00

abstract：:Acute and chronic toxicity of high-grade chlordane (98%) and bioaccumulation were investigated in Daphnia magna at water soluble concentrations obtained without cosolvent. The measured effective concentrations immobilizing 50% of the microcrustacea (95% confidence interval) were 22.6 (19.7-26.1) microg/L at 24 h and 1...

journal_title：Environmental toxicology and chemistry

authors： Manar R,Bessi H,Vasseur P

更新日期：2009-10-01 00:00:00

abstract：:Hydroponic cultures were conducted to investigate the effects of the biodegradable chelating agent S,S-ethylenediaminedisuccinic acid (EDDS) on the growth and copper uptake by garland chrysanthemum (Chrysanthemum coronarium L.), a plant species sensitive to soil chelate amendment. In the presence of 50 micromol/L Cu, ...

journal_title：Environmental toxicology and chemistry

authors： Wei L,Luo C,Wang C,Li X,Shen Z

更新日期：2007-04-01 00:00:00

abstract：:To be defined as an endocrine disruptor, a substance has to meet several criteria, including the induction of specific adverse effects, a specific endocrine mode of action, and a plausible link between both. The latter criterion in particular might not always be unequivocally determined, especially because the endocri...

journal_title：Environmental toxicology and chemistry

authors： Brüggemann M,Licht O,Fetter É,Teigeler M,Schäfers C,Eilebrecht E

更新日期：2018-02-01 00:00:00

abstract：:Pharmaceuticals and personal care products (PPCPs) are emerging contaminants that have been found ubiquitously in wastewater and surface waters around the world. A major source of these compounds is incomplete metabolism in humans and subsequent excretion in human waste, resulting in discharge into surface waters by w...

journal_title：Environmental toxicology and chemistry

authors： Niemuth NJ,Jordan R,Crago J,Blanksma C,Johnson R,Klaper RD

更新日期：2015-02-01 00:00:00

abstract：:The distribution and characteristics of MC252 oil:sand aggregates, termed surface residue balls (SRBs), were measured on the supratidal beach environment of oil-impacted Fourchon Beach in Louisiana (USA). Probability distributions of 4 variables, surface coverage (%), size of SRBs (mm(2) of projected area), mass of SR...

journal_title：Environmental toxicology and chemistry

authors： Lemelle KR,Elango V,Pardue JH

更新日期：2014-07-01 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：: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：:The toxicity and estrogenicity of a final treated municipal effluent was examined while flowing through a constructed wetland in north-central Texas, USA. Fish data were collected, and a baseline wetland characterization was performed to assess wetland treatment potential for these effluent properties. Vitellogenin (V...

journal_title：Environmental toxicology and chemistry

authors： Hemming JM,Waller WT,Chow MC,Denslow ND,Venables B

更新日期：2001-10-01 00:00:00

abstract：:The effects of salinity, gender, and development on the acute toxicity of aldicarb were examined in the euryhaline fish, Japanese medaka (Oryzias latipes). The 96-h median lethal concentrations (LC50s) at 1.5 parts per thousand (per thousand) salinity were not significantly different between adults and juveniles but l...

journal_title：Environmental toxicology and chemistry

authors： El-Alfy AT,Grisle S,Schlenk D

更新日期：2001-09-01 00:00:00

abstract：:The Ca-exchanged clays were used to investigate the sorption of toluene under both high and low relative humidity conditions. According to the observed rates of sorption and desorption and the Fourier transform infrared (FTIR) spectra of sorbed toluene, the sorbate molecules on clays can be divided into three categori...

journal_title：Environmental toxicology and chemistry

authors： Chang ML,Wu SC,Chen PJ,Cheng SC

更新日期：2003-09-01 00:00:00

abstract：:A selective pressurized liquid extraction technique was developed for the simultaneous extraction of polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDD/Fs) and dioxin-like polychlorinated biphenyls (dl-PCBs) from contaminated sediments. The final method incorporated cleanup adsorbents (Florisil, alumina, and silica...

journal_title：Environmental toxicology and chemistry

authors： Aguilar L,Williams ES,Brooks BW,Usenko S

更新日期：2014-07-01 00:00:00

abstract：:Temperature is an important factor affecting toxicity, determining chemical toxicokinetics and toxicodynamics in poikilothermic organisms. Because metabolic rates are also affected by temperature, interactions between the emergence of toxic effects and time are very likely. The aim of the present study was to investig...

journal_title：Environmental toxicology and chemistry

authors： Nørhave NJ,Spurgeon D,Svendsen C,Cedergreen N

更新日期：2014-06-01 00:00:00

abstract：:The ability of Spartina alterniflora to degrade tributyltin (TBT) in contaminated dredge spoils was investigated in a created wetland at Little Creek Naval Amphibious Base in Norfolk, Virginia, USA. Concentrations of TBT up to 250 ng/g did not inhibit S. alterniflora growth over a 16-month period. Disappearance rates ...

journal_title：Environmental toxicology and chemistry

authors： Anderson BA,Unger MA,Moore KA

更新日期：2002-06-01 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：:Heavy metals can represent a threat to the health of aquatic ecosystems. Unlike organic chemicals, heavy metals cannot be eliminated by natural processes such as their degradation into less toxic compounds, and this creates unique challenges for their remediation from soil, water, and air. Phytoremediation, defined as...

journal_title：Environmental toxicology and chemistry

authors： Nguyen TQ,Sesin V,Kisiala A,Emery RJN

更新日期：2021-01-01 00:00:00

abstract：:Identification of lipophilic chemicals requires the development of new techniques to detect these compounds at the cellular and subcellular levels. To address this issue, we have developed a combinational protocol using antibodies directed against chemicals together with a multiple signal amplification system (catalyz...

journal_title：Environmental toxicology and chemistry

authors： Einsporn S,Koehler A

更新日期：2008-03-01 00:00:00

abstract：:There is growing concern about possible effects of exploitation of the Alberta Oil Sands on the ambient environment, including possible effects on populations of fishes in the Athabasca River and farther downstream in Lake Athabasca and the Slave River. In the present study, concentrations of metals in dorsal muscle t...

journal_title：Environmental toxicology and chemistry

authors： Tendler B,Ohiozebau E,Codling G,Giesy JP,Jones PD

更新日期：2020-11-01 00:00:00

abstract：:Uptake and toxicity of Ni-Co mixtures in Enchytraeus crypticus were determined after 4 d, 7 d, 10 d, and 14 d exposure. Generally, body concentrations of Ni and Co increased with increasing exposure concentrations. Ni body concentration was significantly reduced in the presence of Co, whereas Ni only marginally affect...

journal_title：Environmental toxicology and chemistry

authors： He E,Baas J,Van Gestel CA

更新日期：2015-02-01 00:00:00

abstract：:Eutrophication (i.e., nutrient enrichment, organic enrichment, and oxygen depletion) is one of the most common sources of impairment in Clean Water Act 303(d)-listed waters in the United States. Although eutrophication can eventually cause adverse effects to the benthos, it may be difficult to diagnose. Sediment organ...

journal_title：Environmental toxicology and chemistry

authors： Pelletier MC,Campbell DE,Ho KT,Burgess RM,Audette CT,Detenbeck NE

更新日期：2011-03-01 00:00:00

abstract：:The authors investigated the uptake and depuration of fullerene aqueous suspensions (nC(60)) in 2 aquatic organisms: Daphnia magna and zebrafish. The effects of humic acid were examined to elucidate its possible mechanisms in the aquatic environment. The uptake was concentration-dependent in both organisms, and the ma...

journal_title：Environmental toxicology and chemistry

authors： Chen Q,Yin D,Li J,Hu X

更新日期：2014-05-01 00:00:00

abstract：:Bird eggs are used widely as noninvasive bioindicators for environmental mercury availability. Previous studies, however, have found varying relationships between laying sequence and egg mercury concentrations. Some studies have reported that the mercury concentration was higher in first-laid eggs or declined across t...

journal_title：Environmental toxicology and chemistry

authors： Ou L,Varian-Ramos CW,Cristol DA

更新日期：2015-08-01 00:00:00

abstract：:Pesticide use has led to the ubiquitous contamination of natural habitats, which has inadvertently increased pesticide tolerance in target and nontarget species. Historically, increased pesticide tolerance has been attributed to natural selection for tolerance among individuals of affected populations. Recent research...

journal_title：Environmental toxicology and chemistry

authors： Jones DK,Relyea RA

更新日期：2015-10-01 00:00:00

abstract：:Vitellogenin (VTG) induction has proved to be a valuable biomarker for assessing exposure to environmental estrogens in fish. The widespread use of VTG in this regard has lead to the need for standardized assays to quantify VTG, and monoclonal antibodies have the potential to help accomplish this. A VTG enzyme-linked ...

journal_title：Environmental toxicology and chemistry

authors： Tyler CR,van Aerle R,Nilsen MV,Blackwell R,Maddix S,Nilsen BM,Berg K,Hutchinson TH,Goksøyr A

更新日期：2002-01-01 00:00:00

abstract：:Seasonality in biomagnification of persistent organic pollutants (POPs; polychlorinated biphenyls, chlorinated pesticides, and brominated flame retardants) in Arctic marine pelagic food webs was investigated in Kongsfjorden, Svalbard, Norway. Trophic magnification factors (TMFs; average factor change in concentration ...

journal_title：Environmental toxicology and chemistry

authors： Hallanger IG,Warner NA,Ruus A,Evenset A,Christensen G,Herzke D,Gabrielsen GW,Borgå K

更新日期：2011-05-01 00:00:00