Abstract：
:The distribution of aliphatic and aromatic hydrocarbons in surface sediments of the lower course of the Imo River (Nigeria) was investigated to determine the sources and fate of these compounds. The aliphatic fraction is characterized by a widespread contribution of highly weathered/biodegraded hydrocarbon residues (reflected in the absence of prominent n-alkane peaks coupled with the presence of 17α(H),21β(H)-25-norhopane, an indicator of heavy hydrocarbon biodegradation) of Nigerian crude oils (confirmed by the occurrence of 18α(H)-oleanane, a compound characteristic of oils of deltaic origin). The concentrations of polycyclic aromatic hydrocarbons (PAHs) ranging from 48 to 117 ng/g dry weight (dw; ∑13PAHs) indicate a moderate pollution, possibly lowered by the sandy lithology and low organic carbon (OC) content of the sediments. Concentrations slightly decrease towards the estuary of the river, probably due to the fact that these stations are affected by tidal flushing of pollutants adsorbed on sediment particles and carried away by occasional storm to the Atlantic Ocean. A number of PAH ratios, including parent/alkylated and isomeric compounds, indicates a predominance of petrogenic sources, with a low contribution of pyrolytic inputs, particularly of fossil fuel combustion. On the basis of OC/ON (>10) and Per/ΣPAHpenta- (>10) values, a diagenetic terrigenous OC was proposed as a source of perylene to the river.
journal_name
Arch Environ Contam Toxicoljournal_title
Archives of environmental contamination and toxicologyauthors
Oyo-Ita IO,Oyo-Ita OE,Dosunmu MI,Domínguez C,Bayona JM,Albaigés Jdoi
10.1007/s00244-015-0237-5subject
Has Abstractpub_date
2016-02-01 00:00:00pages
372-82issue
2eissn
0090-4341issn
1432-0703pii
10.1007/s00244-015-0237-5journal_volume
70pub_type
杂志文章abstract：:The golden-brown algae Isochrysis galbana, a primary producer, was used to determine the influence of the chemical dispersing agent, Corexit 9527((R)), on the bioavailability of naphthalene. Cells were exposed to laboratory preparations of either the water-accommodated fraction (WAF) of Prudhoe Bay crude oil (PBCO) or...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s002449900376
更新日期：1998-08-01 00:00:00
abstract：:Copper and zinc contents have been determined in up to 28 species of edible mushrooms from different sites in the province of Lugo (NW Spain). Two hundred thirty-eight collected samples were analyzed by an anodic stripping voltammetric technique using a drop mercury as the working electrode. The results showed that th...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-002-2051-0
更新日期：2003-02-01 00:00:00
abstract：:Mono-ortho and non-ortho coplanar polychlorinated biphenyls (PCBs) were analyzed in Aroclors, seals, and humans by graphitized carbon, a recently developed HPLC method (Hong et al. 1992b) and high-resolution gas chromatography with electron capture detection (HRGC/ECD). The concentration data were multiplied by potenc...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/BF00230721
更新日期：1993-07-01 00:00:00
abstract：:A remedial investigation/feasibility study (RI/FS) of the Calcasieu Estuary cooperative site was initiated in 1998. This site, which is located in the southwestern portion of Louisiana in the vicinity of Lake Charles, includes the portion of the estuary from the saltwater barrier on the Calcasieu River to Moss Lake. A...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-010-9636-9
更新日期：2011-07-01 00:00:00
abstract：:Among the waterfowl affected by white phosphorus (P4) at a military base in Alaska are tundra (Cygnus columbianus) and trumpeter (C. buccinator) swans. To estimate the toxicity of P4 to swans and compare the toxic effects to those of mallards (Anas platyrhynchos), we dosed 30 juvenile mute swans (C. olor) with 0 to 5....
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s002449900477
更新日期：1999-04-01 00:00:00
abstract：:The mussel Anodontites trapesialis (Lam, 1819) was used as an indicator of organochlorine pollutants in the Pardo River, located in the municipality of Ribeirão Preto (21 degrees 07'S and 47 degrees 45'W), State of São Paulo, Brazil. Biological monitoring was performed for one year at the site of a sugar cane grove on...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/BF00216244
更新日期：1992-10-01 00:00:00
abstract：:The use of an as-yet-undescribed euryhaline Corophium sp. amphipod as a sediment toxicity testing organism was assessed. The species was found to be ubiquitous in many tidal areas of the Hawkesbury River catchment. The salinity of habitat sites ranged from 0.1 to 24 ppt, sediment total organic carbon (TOC) ranged from...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s002449900282
更新日期：1998-01-01 00:00:00
abstract：:Concentrations of heavy metals and cyanide in water and sediments were determined from December 1974 to February 1976 in Yellowknife Bay situated in northern Canada. The bay receives a continuous discharge of liquid waste effluents from an operating gold mine. Arsenic reached a maximum concentration of 3100 mg kg(-1) ...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/BF01054855
更新日期：1981-11-01 00:00:00
abstract：:Agricultural edge-of-field runoff usually contaminates surface waters with particle-associated pesticides. However, the acute and chronic effects on the aquatic macroinvertebrate communities have rarely been addressed. Outdoor flow-through stream microcosms were exposed for 1 h in triplicate to approximately 3.1 g/L o...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s002440010200
更新日期：2001-05-01 00:00:00
abstract：:Previous studies have indicated that chemicals, e.g., hydroxylated polychlorinated biphenyls (PCBs) decrease plasma thyroxin levels through interaction with transthyretin. As a consequence, plasma vitamin A and thyroxin are depleted. Both thyroxin and vitamin A are important regulators of normal epithelial differentia...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/BF00225989
更新日期：1992-07-01 00:00:00
abstract：:In this study, cadmium biosorption by Myriophyllum heterophyllum Michx. and Potamogeton crispus L. was investigated. Although both species were found to be capable of removing cadmium from water, the performance of P. crispus was the most significant. These species were treated with 0, 4, 8, 16, 32, and 64 mg L(-1) ca...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-007-9070-9
更新日期：2008-05-01 00:00:00
abstract：:Methylmercury (from fresh-water fish) and ethylmercury [from thimerosal-containing vaccines (TCVs)] are the most prevalent source of neurotoxic exposure during early life in families consuming fish and using these vaccines. But children living in Amazonian mining environments are exposed to additional toxic metals in ...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-014-0103-x
更新日期：2015-04-01 00:00:00
abstract：:Invertebrate communities of lentic habitats comprise, amongst others, the crustacean Asellus aquaticus (Isopoda) and the turbellarian Dendrocoelum lacteum (Tricladida). Because D. lacteum preferentially preys on A. aquaticus, contaminants introduced into the aquatic environment may affect this predator-prey interactio...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-011-9743-2
更新日期：2012-07-01 00:00:00
abstract：:Mercury (Hg) concentrations in fish in boreal reservoirs have been shown to be increased for up to 3 decades after impoundment. However, the time course of increased concentrations is not well known. The purpose of this study was to determine the evolution of Hg concentrations in fish in the boreal reservoirs of north...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-006-0113-4
更新日期：2007-10-01 00:00:00
abstract：:Twenty-seven pesticide workers with elevated blood levels of dieldrin (greater than or equal to 15 ppb) were involved in a case-control study which included history and physical examination, comprehensive neurological evaluation, laboratory tests, and psychological and psychomotor testing. No clinically important diff...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/BF01057573
更新日期：1981-01-01 00:00:00
abstract：:We determined dose-response curves for sublethal effects of the organophosphorus (OP) insecticide, chlorpyrifos, on bats. Big brown bats (Eptesicus fuscus, n = 64) were given a single dose of chlorpyrifos (nominal concentrations) of 0, 5, 10, 15, 20, 25, 30, or 60 µg/g body weight and examined at 12 or 24 h after dosi...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-016-0307-3
更新日期：2016-10-01 00:00:00
abstract：:Concentrations of selected heavy metals in the femora and femoral bone structure of bank (Myodes glareolus) and common (Microtus arvalis) voles from different polluted biotopes in Slovakia (Kolíňany and Nováky sites) were investigated. Length, weight, and histological structure of vole bones were also analyzed. We obs...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-010-9545-y
更新日期：2011-04-01 00:00:00
abstract：:Surface residue disappearance rates of dioxathion, malathion, oxydemetonmethyl, and dialifor were the same for fruit and leaves, and they increase with temperature. Disappearance rates were in the order of malathion greater than or equal to oxydemetonmethyl greater than dialifor greater than or equal to dioxathion. Ma...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/BF01055445
更新日期：1981-07-01 00:00:00
abstract：:The effects of dietary exposure to copper (Cu), lead (Pb), and zinc (Zn) on feeding activities, growth response, and mortality of Theba pisana snails were studied in 5-week feeding tests. Snails were fed on an artificial diet containing the following Cu, Pb, or Zn concentrations: 0, 50, 100, 500, 1000, 5000, 10,000, a...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-010-9542-1
更新日期：2011-02-01 00:00:00
abstract：:The high use of pesticides in intensive rice farming in the Mekong Delta constitutes a potential hazard to the environment and to people's health. Chlorpyrifos ethyl (CPF) is a commonly used organophosphate (OP) insecticide, but information about its potential negative impacts on the aquatic environment in the Mekong ...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-015-0182-3
更新日期：2015-11-01 00:00:00
abstract：:Total mercury (Hg) was determined in milk, eggs, beef, pork, human head hair, soil and water obtained from four geographical areas of North Dakota. The sampling areas were selected on the basis of differences in prevalent agricultural practices, climate and topography. Statewide average Hg concentrations in ppb were m...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/BF02220741
更新日期：1975-01-01 00:00:00
abstract：:This report summarizes a study of the chemical and biological characteristics of three oligotrophic lakes located in a region that receives a moderately acidic precipitation (mean annual pH 4.5-4.6), and a sulfate deposition of about 20 kg/ha/yr. The two brownwater lakes are relatively acidic (pH 4.5 and 4.8), and muc...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/BF01056203
更新日期：1989-01-01 00:00:00
abstract：:Bisphenol A (BPA) glucuronide and sulfate conjugates are major products of Phase II metabolism of BPA in humans. In the past, their determination in body fluids usually involves tedious enzymatic hydrolysis and multiresidual analysis. The recent availability of authentic standards of these conjugates enables our bette...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-017-0438-1
更新日期：2017-10-01 00:00:00
abstract：:Chemicals pollution in the environment has attracted attention all over the world, and the toxicity prediction of chemical pollutants has become quite important. In this paper, we introduce a simple approach to predict the toxicity of some chemical components, in which the Tchebichef image moment (TM) method was emplo...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-019-00703-z
更新日期：2020-05-01 00:00:00
abstract：:Acute toxicity tests of selenium dioxide were conducted for 96 to 336 hr in intermittent-flow bioassay systems using six species of freshwater fish. The decreasing order of species sensitivity was: fathead minnow, flagfish, brook trout, channel catfish, goldfish, and bluegil. Curves relating median lethal concentratio...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/BF02221018
更新日期：1976-01-01 00:00:00
abstract：:Neonates from CD-1 mice, which were treated during gestation with 100 mg/kg of 2,4,5-T, were studied from day 1 to 30 postpartum (pp) for effects on cardiac development by determining total cardiac activities and isozyme profiles of LDH and CK. On day 1pp, the total activities and isozyme profiles of LDH of the neonat...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/BF01054881
更新日期：1981-09-01 00:00:00
abstract：:Human natural killer (NK) cells are lymphocytes that destroy tumor and virally infected cells. Previous studies have shown that exposure of NK cells to tributyltin (TBT) greatly diminishes their ability to destroy tumor cells (lytic function) while activating mitogen-activated protein kinases (MAPK) (p44/42, p38, and ...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-010-9520-7
更新日期：2010-11-01 00:00:00
abstract：:Perchlorate is a potent thyroid hormone-disrupting compound. Drinking water is one of the major sources of human exposure to perchlorate. Little is known about the occurrence of perchlorate in waters from China. In this study, water samples (n = 300) collected from 15 locations in 13 provinces and municipalities were ...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-010-9485-6
更新日期：2010-04-01 00:00:00
abstract：:The result of feeding Aroclor 1254 to female Rhesus monkeys at doses of 0, 5, 20, 40 and 80 micrograms/kg body weight/day for a period of 37 months was measured in terms of polychlorinated biphenyl (PCB) levels in blood, adipose tissue, and feces. PCB concentrations in whole blood increased more rapidly during the fir...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/BF01160301
更新日期：1989-11-01 00:00:00
abstract：:We synthesize impediments for evaluating effects to seabirds from open ocean hydrocarbon releases. Effects on seabirds from ship discharges, spills, and well blowouts often are poorly detected and monitored far from land. Regulatory regimes for ocean spills can result in monitoring efforts that are not entirely transp...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-016-0355-8
更新日期：2017-07-01 00:00:00
