Abstract：
:The uptake of polar organic contaminants into polar organic chemical integrative samplers (POCIS) varies with environmental factors, such as water flow rate. To evaluate the influence of water flow rate on the uptake of contaminants into POCIS, flow-controlled field experiments were conducted with POCIS deployed in channel systems through which treated sewage effluent flowed at rates between 2.6 and 37 cm/s. Both pharmaceutical POCIS and pesticide POCIS were exposed to effluent for 21 d and evaluated for uptake of pharmaceuticals and personal care products (PPCPs) and endocrine disrupting substances (EDS). The pesticide POCIS had higher uptake rates for PPCPs and EDS than the pharmaceutical POCIS, but there are some practical advantages to using pharmaceutical POCIS. The uptake of contaminants into POCIS increased with flow rate, but these effects were relatively small (i.e., less than twofold) for most of the test compounds. There was no relationship observed between the hydrophobicity (log octanol/water partition coefficient, log K(OW)) of model compounds and the effects of flow rate on the uptake kinetics by POCIS. These data indicate that water flow rate has a relatively minor influence on the accumulation of PPCPs and EDS into POCIS.
journal_name
Environ Toxicol Chemjournal_title
Environmental toxicology and chemistryauthors
Li H,Vermeirssen EL,Helm PA,Metcalfe CDdoi
10.1002/etc.305subject
Has Abstractpub_date
2010-11-01 00:00:00pages
2461-9issue
11eissn
0730-7268issn
1552-8618journal_volume
29pub_type
杂志文章abstract：:On release into surface waters, engineered silver nanoparticles (AgNPs) tend to settle to sediments and, consequently, epibenthic fauna will be exposed to them through diet. We established Ag uptake and accumulation profiles over time in the hemolymph of a marine amphipod fed with a formulated feed containing AgNPs or...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.4359
更新日期：2019-04-01 00:00:00
abstract：:The fish acute toxicity test method is foundational to aquatic toxicity testing strategies, yet the literature lacks a concise sample size assessment. Although various sources address sample size, historical precedent seems to play a larger role than objective measures. We present a novel and comprehensive quantificat...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.4098
更新日期：2018-06-01 00:00:00
abstract：:In the aquatic environment, ubiquitous natural factors such as ultraviolet light (UV) and dissolved organic carbon (DOC) are likely to influence crude oil toxicity. The present study examined the interactive effects of DOC, UV, and DOC-UV co-exposure on the acute toxicity of Deepwater Horizon crude oil in larval red d...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.4877
更新日期：2020-12-01 00:00:00
abstract：:Sheepshead minnows (Cyprinodon variegatus) were continuously exposed to two concentrations of polycyclic aromatic hydrocarbons (PAHs) dissolved in seawater (sigma PAH = 7.57 and 72.31 microg/L) for 36 d, followed by 8 d of depuration. The PAHs studied were naphthalene (NPH or C0-NPH), phenanthrene (PHE or C0-PHE), pyr...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/03-173
更新日期：2004-06-01 00:00:00
abstract：:The harbor seal (Phoca vitulina) can serve as a useful indicator of food web contamination by persistent organic pollutants (POPs) because of its high trophic level, wide distribution in temperate coastal waters of the Northern Hemisphere, and relative ease of capture. In 1996 through 1997, we live-captured 60 harbor ...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/03-85
更新日期：2004-01-01 00:00:00
abstract：:A 1-compartment toxicokinetic model is used to characterize the chemical exposure toxicity space (CETS), providing a novel graphic tool that can aid in the design of aquatic toxicity tests for fish and for interpreting their results. The graph depicts the solution to the differential equation describing the uptake kin...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.3668
更新日期：2017-05-01 00:00:00
abstract：:Given the urgent need for ecologically relevant toxicity tools specific to estuarine systems, the main goal of the present study was to develop and evaluate the potential of an in situ algal assay for estuarine sediment-overlying water toxicity evaluations using the microalga Phaeodactylum tricornutum immobilized in a...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/05-266r.1
更新日期：2006-09-01 00:00:00
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
pub_type： 杂志文章
doi：10.1002/etc.205
更新日期：2010-07-01 00:00:00
abstract：:Lead (Pb) is a typical toxic heavy metal element in soils and plants, which has a potential threat to human health through the food chain. Pb uptake in the soil-vegetable system has attracted broad attention, while reports on the main controlling factors of Pb uptake and accumulation in different soil-vegetable system...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.4997
更新日期：2021-01-27 00:00:00
abstract：:Soil samples spiked with five concentrations of pyrene and phenanthrene were aged for 0, 10, 40, and 120 d before toxicity was investigated using a standardized bioassay with the soil-dwelling collembolan Folsomia fimetaria L. Toxic effects were measured as reductions in survival and reproductive output after 3 weeks ...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/1551-5028(2002)021<0489:soteos>2.0.co;2
更新日期：2002-03-01 00:00:00
abstract：:We coupled intensive population monitoring with collection of blood samples from 383 nesting Pacific common eiders (Somateria mollisima v-nigrum) at two locations in Alaska (USA) from 2002 to 2004. We investigated annual, geographic, and within-season variation in blood concentrations of lead and selenium; compared ex...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/06-537r.1
更新日期：2007-07-01 00:00:00
abstract：:We have developed a new analytical procedure for determining insoluble Ca and Mg fatty acid salts (soaps) in agricultural soil and sewage sludge samples. The number of analytical methodologies that focus in the determination of insoluble soap salts in different environmental compartments is very limited. In this work,...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.303
更新日期：2010-11-01 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
pub_type： 杂志文章
doi：10.1897/03-573.1
更新日期：2004-12-01 00:00:00
abstract：:Exposure of Daphnia pulex to the insecticide and juvenile hormone-mimic methoprene resulted in a decrease in the incidence of all-male broods and an increase in the incidence of all-female broods compared with controls. These effects were observed at nominal concentrations of 10 and 100 microg/L, within the upper rang...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：
更新日期：2001-03-01 00:00:00
abstract：:The results of the present study have demonstrated the utility of an estrogen receptor (ER) competitive ligand-binding assay, a hepatocyte vitellogenin (VTG) induction bioassay, and an ER reporter gene bioassay in characterizing the activity of model estrogen agonists (17beta-estradiol [E2], ethynylestradiol, and nony...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/05-686r.1
更新日期：2006-12-01 00:00:00
abstract：:Halogenated derivatives of nonylphenol and of its alkylates are generated during drinking water disinfection and treatment procedures. In this paper we analyze the potential of these compounds to interact with the estrogen receptor and to activate hormone-regulated gene promoters. We used the recombinant yeast assay (...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/03-141
更新日期：2004-03-01 00:00:00
abstract：:Many habitats may be exposed to multiple chemical contaminants, particularly in agricultural areas where fertilizer and pesticide use are common; however, the singular and interactive effects of contaminants are not well understood. The objective of our study was to examine how realistic, sublethal environmental level...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/04-319r.1
更新日期：2005-05-01 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：:Oxygen consumption is indicative of an organism's metabolic state, whereby alterations in respiration rate can result from the presence of different stimuli. Here, we develop a novel approach based on quenched fluorescence oxygen sensing and respirometry method for toxicity screening assays using the nematode Caenorha...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/08-083.1
更新日期：2009-04-01 00:00:00
abstract：:In this study, biphenyl-2,2',6,6'-tetracarbaldehyde, an initial byproduct formed from the ozonation of pyrene, and biphenyl-2,2',6,6'-tetracarboxylic acid, a subsequent pyrene ozonation byproduct, were evaluated using two toxicology assays to compare the toxicity of ozonation byproducts with that of the parent compoun...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/04-679.1
更新日期：2005-03-01 00:00:00
abstract：:The cellular energy allocation (CEA) methodology was used to assess the adverse effects of toxic stress on the energy budget of test organisms. This biochemical assay is quantified by determining changes in the available energy reserves, Ea (total carbohydrate, protein, and lipid content) and the energy consumption, E...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：
更新日期：2003-07-01 00:00:00
abstract：:Microcystins (MCs) are potent hepatotoxins acting by the inhibition of protein phosphatase 1 and 2A, and may promote liver tumors. Moreover, studies also suggest they are nephrotoxic. The aim of the present study was to assess possible in vitro effects of microcystin-LR (which contains the amino acids leucine and argi...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.87
更新日期：2010-03-01 00:00:00
abstract：:Toxicokinetics describe the time course of xenobiotics in an exposed organism. The steady state concentration of the xenobiotic is a characteristic of frequent concern, often summarized in terms of bioaccumulation factors (BAFs). Two experimental protocols are commonly used when estimating BAFs: a continuous exposure ...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：
更新日期：2003-04-01 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
pub_type： 杂志文章
doi：10.1002/etc.3084
更新日期：2015-11-01 00:00:00
abstract：:Uptake of cadmium from water by freshwater animals has been well documented. However, little attention has been given to the importance of dietary and combined exposure as the source for uptake. In the present study, we compared cadmium uptake from waterborne (water-only), dietary (food-only), and combined (water plus...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/06-232r.1
更新日期：2007-03-01 00:00:00
abstract：:Laboratory-based algal assays were developed to explore the bioavailability of copper to the marine alga Thalassiosira weissflogii. A calibration strategy was developed that avoided use of the synthetic ligand ethylenediaminetetraacetic acid (EDTA) in the Aquil growth medium, thereby allowing ambient metal speciation....
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1897/05-214r.1
更新日期：2006-04-01 00:00:00
abstract：:A suite of mechanistic atmospheric and mercury (Hg) cycling and bioaccumulation models is applied to simulate atmospheric Hg deposition and Hg concentrations in the water column and in fish in a Hg-impaired freshwater lake located in the northeastern United States that receives its Hg loading primarily through deposit...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.2584
更新日期：2014-06-01 00:00:00
abstract：:An increased demand for chemical toxicity evaluations has resulted in the need for alternative testing strategies that address animal welfare concerns. The fish embryo toxicity (FET) test developed for zebrafish (Danio rerio) is one such alternative, and the application of the FET test to other species such as the fat...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.2718
更新日期：2014-11-01 00:00:00
abstract：:Recently it was discovered that the perfluorooctane sulfonate (PFOS) detected in wildlife, such as fish-eating birds, had a greater proportion of linear PFOS (L-PFOS) than the manufactured technical product (T-PFOS), which contains linear and branched isomers. This suggests toxicological studies based on T-PFOS data m...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.700
更新日期：2011-12-01 00:00:00
abstract：:The current terrestrial risk assessment of insecticides regarding nontarget arthropods considers exclusively beneficial organisms, whereas herbivorous insects, such as grasshoppers, are ignored. However, grasshoppers living in field margins or meadows adjacent to crops may potentially be exposed to insecticides due to...
journal_title：Environmental toxicology and chemistry
pub_type： 杂志文章
doi：10.1002/etc.1895
更新日期：2012-08-01 00:00:00
