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 assessment of methylmercury (MeHg) for non-anadromous Arctic char. Our assessment included 1569 fish distributed across 83 sites. Site-specific mean total Hg concentrations in non-anadromous Arctic char muscle varied considerably from 0.01 to 1.13 µg/g wet weight, with 21% (17 of 83 sites) meeting or exceeding a threshold-effect level in fish of 0.33 µg/g wet weight, and 13% (11 of 83 sites) meeting or exceeding a threshold-effect level in fish of 0.5 µg/g wet weight. Of the sites in exceedance of the 0.33-µg/g threshold, 7 were located in Greenland and 10 in Canada (Labrador, Nunavut, and Yukon). All but one of these sites were located in interfrost or permafrost biomes. Maximum total Hg concentrations exceeded 0.33 µg/g wet weight at 53% of sites (40 of the 75 sites with available maximum Hg values), and exceeded 0.5 µg/g wet weight at 27% (20 of 75 sites). Collectively, these results indicate that certain populations of non-anadromous Arctic char located mainly in interfrost and permafrost regions may be at risk for MeHg toxicity. This approach provides a simple statistical assessment of MeHg risk to non-anadromous Arctic char, and does not indicate actual effects. We highlight the need for studies that evaluate the potential toxic effects of MeHg in non-anadromous Arctic char, as well as those that aid in the development of a MeHg toxic-effect threshold specific to this species of fish. Environ Toxicol Chem 2019;38:489-502. © 2018 SETAC.
journal_name
Environ Toxicol Chemjournal_title
Environmental toxicology and chemistryauthors
Barst BD,Drevnick PE,Muir DCG,Gantner N,Power M,Köck G,Chéhab N,Swanson H,Rigét F,Basu Ndoi
10.1002/etc.4341subject
Has Abstractpub_date
2019-03-01 00:00:00pages
489-502issue
3eissn
0730-7268issn
1552-8618journal_volume
38pub_type
杂志文章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
pub_type: 杂志文章
doi:10.1002/etc.2099
更新日期:2013-03-01 00:00:00
abstract::The present study evaluated the use of the invasive clam Corbicula fluminea as a surrogate for metal accumulation in native mussels. The tissue concentrations of As, Cd, Cu, Hg, Mn, Ni, Pb, and Zn were analyzed in Corbicula and a native Unionid mussel species (Elliptio hopetonensis) collected from 13 sites in the Alta...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.235
更新日期:2010-09-01 00:00:00
abstract::There is widespread concern over the presence of Hg in fish consumed by humans. While studies have been focused on determining the Hg concentration in sport fish and some commercial fish, little attention has been directed to canned tuna; it is widely held that concentrations are low. In the present study, the amount ...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.32
更新日期:2010-02-01 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
pub_type: 杂志文章
doi:10.1002/etc.2579
更新日期:2014-07-01 00:00:00
abstract::Polycyclic aromatic hydrocarbons (PAH) and black carbon (BC) were measured in alpine Lake Planina (Slovenia) sediment. Lake Planina is a remote mountain lake with almost no direct anthropogenic influence. Long-distance atmospheric deposition is a major pathway for the loading of contaminants to the sediment. The PAH w...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:
更新日期:2003-05-01 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
pub_type: 杂志文章
doi:
更新日期:2003-06-01 00:00:00
abstract::Interest in stream mesocosms has recently revived for higher tier aquatic macrophyte risk assessment of plant protection products mainly because 1) the highest predicted environmental concentrations for the assessment of effects are frequently derived from stream scenarios, and 2) they allow an effect assessment using...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.3636
更新日期:2017-04-01 00:00:00
abstract::Mercury contamination in wetland biota is often dynamic, difficult to predict, and costly to track. In this paper, we present results from a six-year study of growing feathers of piscivorous birds as monitors of wetland Hg exposure in Florida, USA, wetlands. Between 1994 and 2000, we collected feathers of growing grea...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:
更新日期:2002-01-01 00:00:00
abstract::The present study determined concentrations of estrogenic bisphenol A (BPA), nonylphenol, octylphenol (4-tert-octylphenol), butylphenol (4-tert-butylphenol), and progestogenic norethindrone by liquid chromatography-tandem mass spectrometry in bile extracts from field fish from the Xin'an River and market fish in Shang...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.3176
更新日期:2016-01-01 00:00:00
abstract::The subject of the present study was the piscivorous common mergansers (Mergus merganser). The total mercury (THg), methylmercury (MeHg), selenium (Se) inorganic mercury (InHg; THg - MeHg), percentage of THg that is MeHg (%MeHg), molar ratios (THg:Se, MeHg:Se, InHg:Se), and their mutual relations in livers and kidneys...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.2448
更新日期:2014-02-01 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
abstract::The availability of standardized protocols for both organism culture and bioassay with ecologically relevant species is of great concern in ecotoxicology. Acartia tonsa represents an important, often dominant, member of zooplankton communities and meets all the practical criteria suggested for model species. New stand...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.1909
更新日期:2012-09-01 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::Bisphenol A (BPA) is a ubiquitous chemical in the environment and potentially harmful to plants. However, relevant studies of the effects of BPA on plants are relatively scarce. In the present work, the effects of BPA on the biomass (fresh wt and dry wt), absorptive function (activity and absorptive area), and mineral...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.2770
更新日期:2015-01-01 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
pub_type: 杂志文章
doi:10.1002/etc.3129
更新日期:2015-12-01 00:00:00
abstract::Seedlings of Brassica juncea (L.) Czern. were grown in solution culture for 14 d prior to exposure to Pb₂+ at an activity of 31 microM for 72 h. Electron dense deposits found within the apoplast and symplast were analysed using scanning transmission electron microscopy-energy dispersive spectroscopy (STEM-EDS) to dete...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1897/09-131.1
更新日期:2009-11-01 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
pub_type: 杂志文章
doi:10.1897/1551-5028(2001)020<2268:aoteat>2.0.co;2
更新日期:2001-10-01 00:00:00
abstract::A study of the ecotoxicity of different short aliphatic protic ionic liquids (PILs) on terrestrial organisms was conducted. Tests performed within the present study include those assessing the effects of PILs on soil microbial functions (carbon and nitrogen mineralization) and terrestrial plants. The results show that...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.683
更新日期:2011-12-01 00:00:00
abstract::Earthworms perform key functions for a healthy soil ecosystem, such as bioturbation. The soil ecosystem can be challenged by natural toxins such as isothiocyanates (ITCs), produced by many commercial crops. Therefore, the effects of 2-phenylethyl ITC were investigated on the earthworm Eisenia andrei using an ecotoxico...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.2446
更新日期:2014-02-01 00:00:00
abstract::The ventilation amplitude and frequency of silver perch Bidyanus bidyanus, and the ventilation frequency of rainbow fish Melanotaenia duboulayi and rainbow trout Oncorhynchus mykiss, were determined at different temperatures upon exposure to endosulfan and chlorpyrifos, respectively. Silver perch and rainbow fish were...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1897/08-532.1
更新日期:2009-10-01 00:00:00
abstract::Storm events lead to agricultural and urban runoff, to mobilization of contaminated particulate matter, and to input from combined sewer overflows into rivers. We conducted time-resolved sampling during a storm event at the Ammer River, southwest Germany, which is representative of small river systems in densely popul...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.4910
更新日期:2021-01-01 00:00:00
abstract::In the present study, electron paramagnetic resonance coupled with spin-trapping technique was used, with alpha-phenyl-N-tert-butylnitrone (PBN) as a spin-trapping agent, to investigate free radical generation in freshwater fish with acute 2,4-dichlorophenol (2,4-DCP) poisoning. The PBN-radical adducts were detected i...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1897/04-640r.1
更新日期:2005-09-01 00:00:00
abstract::Strong positive correlations between selenium (Se) and total mercury (HgT) contents in the liver of marine mammals and mercury mine workers in modern times have been documented in numerous investigations. Herein, we report a positive correlation between Se and HgT concentrations over the past 1,500 years in the seal h...
journal_title:Environmental toxicology and chemistry
pub_type: 历史文章,杂志文章
doi:10.1897/06-128.1
更新日期:2007-03-01 00:00:00
abstract::The chronic toxicity of ammonia to tropical freshwater species is understudied, and thus data on temperate species have been used to derive water quality guideline values for tropical regions. Such practices may lead to underprotective guideline values due to differences in toxicities observed between tropical and tem...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.4313
更新日期:2019-01-01 00:00:00
abstract::Environmental contaminants can interfere with hormonal regulation in both vertebrates and invertebrates, and these contaminants may disrupt the endocrine system of human and other organisms. Evidence is growing that contaminants may be partly responsible for the observed increase of disease in marine organisms by adve...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1897/08-642.1
更新日期:2009-08-01 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
pub_type: 杂志文章
doi:10.1002/etc.729
更新日期:2012-02-01 00:00:00
abstract::Total mercury and stable isotopes of nitrogen (δ(15) N) were measured in samples from 57 species of invertebrates (17 species) and finfish (40 species) from the coastal waters off southwest Florida, USA, to evaluate the biomagnification of mercury through the food web. Mercury concentrations (wet wt) and δ(15) N value...
journal_title:Environmental toxicology and chemistry
pub_type: 杂志文章
doi:10.1002/etc.2416
更新日期:2014-01-01 00:00:00
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
pub_type: 杂志文章
doi:10.1897/04-480r.1
更新日期:2005-07-01 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
pub_type: 杂志文章
doi:
更新日期:2002-11-01 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
pub_type: 杂志文章
doi:
更新日期:2001-09-01 00:00:00