Abiotic dealkylation and hydrolysis of atrazine by birnessite.

abstract：:During the last four years, significant effort has been devoted to understanding the effects that Hurricanes Katrina and Rita had on contaminant distribution and redistribution in New Orleans, Louisiana, USA, and the surrounding Gulf Coast area. Elevated concentrations were found for inorganic contaminants (including ...

journal_title：Environmental toxicology and chemistry

authors： Abel MT,Cobb GP,Presley SM,Ray GL,Rainwater TR,Austin GP,Cox SB,Anderson TA,Leftwich BD,Kendall RJ,Suedel BC

更新日期：2010-07-01 00:00:00

abstract：:Atrazine is a well-known contaminant of surface waters and has been implicated in point-source pollution at agrochemical dealerships in the Midwest. Although the fate of atrazine has been well documented in soil and water, little is known about the fate of this contaminant and its metabolites within a grassed system. ...

journal_title：Environmental toxicology and chemistry

authors： Henderson KL,Belden JB,Coats JR

更新日期：2007-09-01 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：:Toxic effects of many persistent organic pollutants (e.g., polychlorinated biphenyls or polychlorinated dibenzo-p-dioxins and furans) are mediated via the aryl hydrocarbon receptor (AhR). Although polycyclic aromatic hydrocarbons (PAHs) and their derivatives also activate AhR, their toxic effects remain to be fully el...

journal_title：Environmental toxicology and chemistry

authors： Sovadinová I,Bláha L,Janosek J,Hilscherová K,Giesy JP,Jones PD,Holoubek I

更新日期：2006-05-01 00:00:00

abstract：:A new short life-cycle test methodology is presented to evaluate sublethal effects of contaminated sediments to the harpacticoid copepod species Nitocra spinipes. The method combines a 4-d survival-gravidity test with a 7-d development test. For water-only Cu exposures, the sensitivity of the development test endpoint...

journal_title：Environmental toxicology and chemistry

authors： Perez-Landa V,Simpson SL

更新日期：2011-06-01 00:00:00

abstract：:We conducted a seasonal study of the uptake of Cd, Se(IV), and Zn by natural phytoplankton assemblages collected from two locations in Hong Kong coastal waters. Marine phytoplankton in Port Shelter was dominated by diatoms and cyanobacteria, while phytoplankton in Tolo Harbour was dominated by dinoflagellates. The nat...

journal_title：Environmental toxicology and chemistry

authors： Wang WX,Dei RC,Hong H

更新日期：2005-01-01 00:00:00

abstract：:Non-anadromous forms of Arctic char (Salvelinus alpinus), those that are restricted to lakes and rivers, typically have higher mercury (Hg) concentrations than anadromous forms, which migrate to and from the sea. Using tissue burden data from the literature and our own analyses, we performed a screening-level risk ass...

journal_title：Environmental toxicology and chemistry

authors： Barst BD,Drevnick PE,Muir DCG,Gantner N,Power M,Köck G,Chéhab N,Swanson H,Rigét F,Basu N

更新日期：2019-03-01 00:00:00

abstract：:Hepatic vitellogenin (VTG) mRNA and plasma protein assays were developed for the Murray rainbowfish (Melanotaenia fluviatilis), a native freshwater fish species in Australia. Adult male Murray rainbowfish were exposed to 17β-estradiol (E2) or 17α-ethynylestradiol (EE2) at 0, 1, 5, 10, 50, or 100 ng/L in a semistatic s...

journal_title：Environmental toxicology and chemistry

authors： Woods M,Kumar A

更新日期：2011-11-01 00:00:00

abstract：:Analysis of sperm has been investigated as a possible method to examine the toxicity of environmental contaminants. The amphibian sperm inhibition toxicological test (ASITT) method examines the effects of contaminants on Xenopus laevis (African clawed frog) sperm motility and path trajectories. As part of a preliminar...

journal_title：Environmental toxicology and chemistry

authors： Christensen JR,Bishop CA,Richardson JS,Pauli B,Elliott J

更新日期：2004-12-01 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 influence of dissolved organic carbon (DOC) and water composition on the toxicity of copper to juvenile freshwater mussels (fatmucket, Lampsilis siliquoidea) were evaluated in natural and reconstituted waters. Acute 96-h copper toxicity tests werec onducted at four nominal DOC concentrations (0, 2.5, 5, and 10 mg/...

journal_title：Environmental toxicology and chemistry

authors： Wang N,Mebane CA,Kunz JL,Ingersoll CG,May TW,Arnold WR,Santore RC,Augspurger T,Dwyer J,Barnhart MC

更新日期：2009-11-01 00:00:00

abstract：:A dynamic, segmented, multimedia fate and transport model has been developed, evaluated, and applied to gain insight regarding the behavior of seven polychlorinated biphenyl (PCB) congeners in the Inner Oslofjord (Norway). A comparison with a dated sediment core reveals that the model is not capable of reproducing som...

journal_title：Environmental toxicology and chemistry

authors： Breivik K,Bjerkeng B,Wania F,Helland A,Magnusson J

更新日期：2004-10-01 00:00:00

abstract：:Ecological soil-screening levels (Eco-SSLs) were developed by the United States Environmental Protection Agency (USEPA) for the purposes of setting conservative soil screening values that can be used to eliminate the need for further ecological assessment for specific analytes at a given site. Ecological soil-screenin...

journal_title：Environmental toxicology and chemistry

authors： Sample BE,Fairbrother A,Kaiser A,Law S,Adams B

更新日期：2014-10-01 00:00:00

abstract：:The extent to which persistent organic pollutants (POPs) with different physicochemical properties originated from the food (dietary input) was assessed in raptor nestlings. Lipophilic polychlorinated biphenyl (PCB) 153, 1-dichloro-2,2-bis(p-chlorophenyl)ethylene (p,p'-DDE), and hexachlorobenzene (HCB), and protein-bo...

journal_title：Environmental toxicology and chemistry

authors： Bustnes JO,Bårdsen BJ,Herzke D,Johnsen TV,Eulaers I,Ballesteros M,Hanssen SA,Covaci A,Jaspers VL,Eens M,Sonne C,Halley D,Moum T,Nøst TH,Erikstad KE,Ims RA

更新日期：2013-11-01 00:00:00

abstract：:Aqueous suspensions of fullerene aggregates (aqua-nC60) were used to investigate the movement of carbon-based nanomaterials in a marine water column and to determine their effects on different life stages of a marine teleost. Fullerene aggregates formed precipitates as a result of mixing in natural seawater, and level...

journal_title：Environmental toxicology and chemistry

authors： Blickley TM,McClellan-Green P

更新日期：2008-09-01 00:00:00

abstract：:Scientific reviews and studies continue to describe omics technologies as the next generation of tools for environmental monitoring, while cautioning that there are limitations and obstacles to overcome. However, omics has not yet transitioned into national environmental monitoring programs designed to assess ecosyste...

journal_title：Environmental toxicology and chemistry

authors： Bahamonde PA,Feswick A,Isaacs MA,Munkittrick KR,Martyniuk CJ

更新日期：2016-01-01 00:00:00

abstract：:Environment Canada has developed a new 42-d sediment toxicity test method that includes a reproduction test endpoint with the freshwater amphipod Hyalella azteca. Because of concerns that existing standard methodologies, whereby adults are transferred to a water-only exposure before release of their first brood at day...

journal_title：Environmental toxicology and chemistry

authors： Taylor LN,Novak L,Rendas M,Antunes PM,Scroggins RP

更新日期：2016-10-01 00:00:00

abstract：:The chemical ultraviolet (UV) filter benzophenone-3 (BP-3) is suspected to be an endocrine disruptor based on results from in vitro and in vivo testing. However, studies including endpoints of endocrine adversity are lacking. The present study investigated the potential endocrine-disrupting effects of BP-3 in zebrafis...

journal_title：Environmental toxicology and chemistry

authors： Kinnberg KL,Petersen GI,Albrektsen M,Minghlani M,Awad SM,Holbech BF,Green JW,Bjerregaard P,Holbech H

更新日期：2015-12-01 00:00:00

abstract：:Environmental pollution with natural or synthetic estrogens may pose a serious threat to reproduction of wildlife species. This study describes the effects of 17-alpha-ethynylestradiol (EE2) on fish reproductive organs in a laboratory model. Adult zebrafish were semistatically exposed to nominal concentrations of 0, 1...

journal_title：Environmental toxicology and chemistry

authors： Van den Belt K,Wester PW,van der Ven LT,Verheyen R,Witters H

更新日期：2002-04-01 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：:Concentrations of arsenic, cadmium, copper, lead, and nickel were measured in soils, house mice (Mus musculus), and the main food items of this omnivorous mouse to examine the occurrence of these metals in selected components of a seasonal wetland. Soil concentrations of copper, lead, and (in some areas) nickel were e...

journal_title：Environmental toxicology and chemistry

authors： Torres KC,Johnson ML

更新日期：2001-11-01 00:00:00

abstract：:Three environmental multimedia models of varying degrees of complexity are compared to assess when simple models are adequate and when more complex models are advantageous. The simplest model, the level II (L-II) model, assumes all environmental media are at chemical equilibrium, whereas the more complex models treat ...

journal_title：Environmental toxicology and chemistry

authors： Cahill TM,Mackay D

更新日期：2003-06-01 00:00:00

abstract：:Although conventional wastewater treatment technologies are effective at removing many contaminants of emerging concern (CECs) from municipal wastewater, some contaminants are not removed efficiently. Ozonation may be a treatment option for reducing the concentrations of recalcitrant CECs in wastewater, but this proce...

journal_title：Environmental toxicology and chemistry

authors： Maya N,Evans J,Nasuhoglu D,Isazadeh S,Yargeau V,Metcalfe CD

更新日期：2018-01-01 00:00:00

abstract：:Exposure to multiple classes of contaminants, both legacy and contaminants of emerging concern (CECs), were assessed in tree swallow (Tachycineta bicolor) tissue and diet samples from 6 sites along the Maumee River, Ohio, USA, to understand both exposure and possible effects of exposure to those CECs for which there a...

journal_title：Environmental toxicology and chemistry

authors： Custer CM,Custer TW,Dummer PM,Schultz S,Tseng CY,Karouna-Renier N,Matson CW

更新日期：2020-10-01 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 effects of elevated plasma cortisol levels on vitellogenin (VTG) induction were examined in the fathead minnow (Pimephales promelas) in an attempt to evaluate the potential influence of stress on this commonly used biomarker of estrogenicity. Two separate experiments were conducted in which fish plasma cortisol wa...

journal_title：Environmental toxicology and chemistry

authors： Brodeur JC,Woodburn KB,Klecka GM

更新日期：2005-05-01 00:00:00

abstract：:Reduced glutathione (GSH) plays a number of key roles in many biochemical pathways. This peptide is highly reactive and forms conjugates with other molecules via its sulfhydryl moiety. The interactions of the common heavy metal pollutant Cd(II) with GSH were determined by using the Brdicka reaction to evaluate whether...

journal_title：Environmental toxicology and chemistry

authors： Baloun J,Adam V,Trnkova L,Beklova M,Svobodova Z,Zeman L,Kizek R

更新日期：2010-03-01 00:00:00

abstract：:Estrogenicity of sewage effluents, and related ecotoxicological effects in effluent-receiving environments, have been widely reported over the last 2 decades. However, relatively little attention has been given to other endocrine pathways that may be similarly disrupted by a growing list of contaminants of concern. Fu...

journal_title：Environmental toxicology and chemistry

authors： Roberts J,Bain PA,Kumar A,Hepplewhite C,Ellis DJ,Christy AG,Beavis SG

更新日期：2015-10-01 00:00:00

abstract：:A theoretical analysis was performed to examine the role of naphthalene dioxygenase (NDO) enzymes in determining differences in biodegradability and biodegradation rates of two- to four-ring polycyclic aromatic hydrocarbons (PAHs) via oxygenation and desaturation reactions. Investigation of the thermodynamics of PAH b...

journal_title：Environmental toxicology and chemistry

authors： Wammer KH,Peters CA

更新日期：2006-04-01 00:00:00

abstract：:Natural organic matter (NOM) has long been shown to be the dominant factor in determining equilibrium and kinetic processes during sorption and desorption phenomena in sediment and soil experiments. Although several models have been suggested for predicting these processes, few offer mechanistic interpretations becaus...

journal_title：Environmental toxicology and chemistry

authors： Clay MM,Morgan JA,Dunnivant FM

更新日期：2021-02-01 00:00:00