Abstract:
:The toxicity of an acid mine drainage (AMD) mixing zone was investigated by placing bluegill (Lepomis macrochirus) at the confluence of a stream contaminated by AMD and a stream having neutral pH. A mixing channel receiving water from both streams was assembled in the field, during July and October 1996, to determine the toxicity of freshly mixed and aged water (2.9-7.5 min). The AMD stream had elevated concentrations of Al and Fe, which precipitated upon mixing, and of Mn, which did not precipitate in the mixing zone. Fish exposed to freshly mixed water had higher mortality than fish exposed to water after aging. Precipitating Al, but not Fe, accumulated on the gills of bluegill, and accumulation was more rapid early during the mixing process than after aging. Fish exposed for 3.5 h to freshly mixed water had hypertrophy and hyperplasia of gill filament and lamellar epithelial cells. Similar lesions were observed after 6.0 h in fish exposed to water aged after mixing. Results demonstrated that Al was the predominant metal accumulating on the gills of fish in this AMD mixing zone, and that mixing zones can be more toxic than AMD streams in equilibrium.
journal_name
Environ Toxicol Chemjournal_title
Environmental toxicology and chemistryauthors
Henry TB,Irwin ER,Grizzle JM,Brumbaugh WG,Wildhaber MLsubject
Has Abstractpub_date
2001-06-01 00:00:00pages
1304-11issue
6eissn
0730-7268issn
1552-8618journal_volume
20pub_type
杂志文章abstract::A series of atomistic simulations was performed to assess the ability of the Schulten dissolved organic matter (DOM) molecule, a well-established model humic molecule, to reproduce the physical and chemical behavior of natural humic substances. The unhydrated DOM molecule had a bulk density value appropriate to humic ...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1897/04-567r.1
更新日期:2005-08-01 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
pub_type: 杂志文章
doi:10.1897/07-288.1
更新日期:2008-03-01 00:00:00
abstract::Although the introduction of non-native fish species has been shown to alter trophic ecology in aquatic ecosystems, there has been limited research on how invasive species alter methylmercury (MeHg) biomagnification in lacustrine food webs. We sampled surface water and biota from 8 lakes in Quebec, Canada, spanning a ...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.4831
更新日期:2020-11-01 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
pub_type: 杂志文章
doi:
更新日期:2002-07-01 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
pub_type: 杂志文章
doi:10.1002/etc.4792
更新日期:2020-10-01 00:00:00
abstract::Crude oils contain a mixture of hydrocarbons, including phototoxic polycyclic aromatic hydrocarbons (PAHs) that have the ability to absorb ultraviolet (UV) light. Absorption of UV light by PAHs can substantially increase their toxicity to marine organisms. The objective of the present study was to examine the potentia...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.3808
更新日期:2017-10-01 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
pub_type: 杂志文章
doi:10.1897/05-315r.1
更新日期:2006-07-01 00:00:00
abstract::Polybrominated diphenyl ethers (PBDEs) were measured in surface sediments from 121 locations within the Southern California Bight. Site selection was based on a probabilistic approach to determine the spatial extent and magnitude of PBDE concentrations with known confidence intervals. Coastal embayments (including est...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.1957
更新日期:2012-10-01 00:00:00
abstract::Ammonium nitrate (NH(4)NO(3)) is a common water pollutant associated with many industrial and municipal activities. One solution to reduce exposure of sensitive aquatic systems to nitrogenous compounds is to atomize (atmospherically disperse in fine particles) contaminated water over the Arctic tundra, which will redu...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1897/07-567
更新日期:2008-08-01 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
pub_type: 杂志文章,评审
doi:10.1002/etc.3995
更新日期:2018-02-01 00:00:00
abstract::Rate constant bioaccumulation models are applied to simulate the flow of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in the coastal marine food web of Frierfjorden, a contaminated fjord in southern Norway. We apply two different ways to parameterize the rate constants in the model, global sensitivity...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1897/05-091r.1
更新日期:2006-01-01 00:00:00
abstract::Determination of the most sensitive and susceptible organismal life stage is important for use of the organism in toxicity assessments of environmental pollutants. In the present study, the sensitivities and susceptibilities of larval developmental stages of two black fly sibling species, Simulium vittatum Zetterstedt...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1897/03-657.1
更新日期:2004-12-01 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
pub_type: 杂志文章
doi:10.1897/03-351a
更新日期:2004-11-01 00:00:00
abstract::Ab initio gene prediction and evidence alignment were used to produce the first annotations for the fathead minnow (Pimephales promelas) genome. We also describe a genome browser, hosted by the Society of Environmental Toxicology and Chemistry, that provides simplified access to the annotation data in context with the...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.3929
更新日期:2017-12-01 00:00:00
abstract::Rice is the main crop in the subbasin of the fluvial lagoon system of Palizada River (FLSPR) in the state of Campeche, Mexico. The pesticides used to control pests of this crop mainly are carbofuran, chlorpyrifos, and glyphosate. Black-bellied whistling duck (Dendrocygna autumnalis) is an ecologically and economically...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1897/03-646.1
更新日期:2005-02-01 00:00:00
abstract::Unionid mussels are ecologically important and are globally imperiled. Toxicants contribute to mussel declines, and toxicity tests using juvenile mussels-a sensitive life stage-are valuable in determining thresholds used to set water quality criteria. In vitro culture methods provide an efficient way to propagate juve...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.4270
更新日期:2018-12-01 00:00:00
abstract::Aquatic organisms can take up toxicants from water (aqueous exposure) and from food (dietary exposure), yet current environmental regulations often fail to consider the toxic effects of dietary exposure. Such unrealistic exposure scenarios may lead to ineffective water-quality standards or discharge consents that fail...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1897/05-316r1.1
更新日期:2006-07-01 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
pub_type: 杂志文章
doi:10.1002/etc.2599
更新日期:2014-07-01 00:00:00
abstract::To investigate possible relationships between polychlorinated biphenyl (PCB) exposure and infectious disease mortality in harbor porpoises (Phocoena phocoena) in United Kingdom waters, summed blubber concentrations of 25 chlorobiphenyl congeners (sigma25CB) in healthy harbor porpoises that died of acute physical traum...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1897/03-663.1
更新日期:2005-01-01 00:00:00
abstract::Polycyclic aromatic hydrocarbons (PAHs) are major components of wastes from municipal gas plants and many wood preservatives. Soil contaminated with these wastes is a potential threat to human health because of the carcinogenicity of many PAHs. This study follows the fate of two four-ring PAHs, pyrene and chrysene, in...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:
更新日期:2001-02-01 00:00:00
abstract::Treatment of municipal wastewater reduces the concentrations of some pharmaceuticals and personal care products (PPCPs), hormones, and drugs of abuse. However, reduced concentrations of these micropollutants in wastewater may not correlate with reduced toxicity because transformations of micropollutants and/or the for...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.3939
更新日期:2018-01-01 00:00:00
abstract::In plant tissues, xenobiotics often are conjugated with natural constituents such as sugars, amino acids, glutathione, and malonic acid. Usually, conjugation processes result in a decrease in the reactivity and toxicity of xenobiotics by increasing the water solubility and polarity of conjugates, and reducing their mo...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1897/07-036R.1
更新日期:2007-11-01 00:00:00
abstract::The Chemical Aquatic Fate and Effects (CAFE) database is a centralized repository that allows for rapid and unrestricted access to data. Information in CAFE is integrated into a user-friendly tool with modules containing fate and effects data for 32 377 and 4498 chemicals, respectively. Toxicity data are summarized in...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.3289
更新日期:2016-06-01 00:00:00
abstract::Extensive agricultural use of neonicotinoid insecticide products has resulted in the presence of neonicotinoid mixtures in surface waters worldwide. Although many aquatic insect species are known to be sensitive to neonicotinoids, the impact of neonicotinoid mixtures is poorly understood. In the present study, the cum...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.3878
更新日期:2017-11-01 00:00:00
abstract::Potentially toxic levels of 3 naturally occurring chemical stressors (dissolved sulfide, ammonia, and iron) can appear in freshwater sediments, although their roles in shaping ecosystem structure (i.e., plant and animal communities) and function (e.g., biologically mediated elemental cycles) have received little study...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.2801
更新日期:2015-03-01 00:00:00
abstract::This study evaluated the toxic effects of substituted anilines on Pseudokirchneriella subcapitata with the use of a closed algal toxicity testing technique with no headspace. Two response endpoints (i.e., dissolved oxygen production [DO] and algal growth rate) were used to evaluate the toxicity of anilines. Both DO an...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1897/06-293r.1
更新日期:2007-06-01 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
pub_type: 杂志文章
doi:10.1002/etc.660
更新日期:2011-11-01 00:00:00
abstract::The determination of site-specific water quality criteria generally involves the recalculation of national criteria using laboratory-derived toxicity data or the conducting of bioassays using site water. Because of uncertainty of predictions of in-stream biological responses to contamination, an alternative procedure ...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.5620050501
更新日期:1986-05-01 00:00:00
abstract::Fluorotelomer carboxylic acids (FTCAs) and the corresponding unsaturated acids (FTUCAs) are known intermediates in the biodegradation of industrially produced fluorotelomer alcohols (FTOHs) to environmentally persistent perfluorinated carboxylic acids (PFCAs). The FTCAs and FTUCAs are of concern for their toxicity, re...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.211
更新日期:2010-08-01 00:00:00
abstract::In tissues of freshwater fish-feeding mammals, 3,4-didehydroretinol (A2) is a major form of vitamin A. In mink liver, with organochlorine exposure, this analog has been found to decrease more than retinol (A1) and thus has potential as a sensitive freshwater biomarker. The presence of the analogs A1 and A2 as alcohol ...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:
更新日期:2002-02-01 00:00:00