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 much of their acidity is attributable to organic anions. The brownwater lakes also have a large concentration of aluminum and iron, but these are bound to dissolved organic matter and are relatively non-toxic to biota. Average phytoplankton production was largest in the clearwater lake. This was due to its relatively deep euphotic zone, since the average unit-volume productivity did not differ much among the lakes. In fact, productivity at light optimum was largest in the most acidic brownwater lake, probably because of its larger phosphorus concentration. The clearwater lake had extensive macrophyte vegetation, which covered its bottom to a depth of 6.5 m. In the brownwater lakes, macrophytes were confined to shallow nearshore water because of the limited water transparency. Zooplankton density and biomass were largest in the most acidic brownwater lake, probably because of allochthonous organic particulates and little fish predation. Benthic invertebrates were abundant in all three lakes, and were dominated by insects, especially Chironomids. Lakes in the study area appear to be sustaining fish populations at more acidic pHs than elsewhere. This may be due to the large concentration of dissolved organic matter in many lakes, which complexes and partially detoxifies metals such as aluminum.
journal_name
Arch Environ Contam Toxicoljournal_title
Archives of environmental contamination and toxicologyauthors
Kerekes J,Freedman Bdoi
10.1007/BF01056203subject
Has Abstractpub_date
1989-01-01 00:00:00pages
183-200issue
1-2eissn
0090-4341issn
1432-0703journal_volume
18pub_type
杂志文章abstract：:An ultrastructural study was made of the renal system of freshwater clams,Anodonta cygnea, that had been exposed to cadmium chloride (50 μg Cd/L) for 12 weeks. By stereological analysis an extended lysosomal system and a decreased number of mitochondria was apparent in the epithelial cells lining the proximal compartm...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/BF01183986
更新日期：1990-09-01 00:00:00
abstract：:We investigated interactions between low pH, high nitrate level, and ultraviolet-B (UV-B) light on the survival and activity level of larval Cascades frogs (Rana cascadae). We used a fully factorial experimental design, with pH levels of 5 and 7; initial "pulse" nitrate exposure levels of 0, 5, and 20 mg/L; and UV-B p...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s002440010132
更新日期：2000-11-01 00:00:00
abstract：:We measured halogenated organic contaminants (HOCs) [polybrominated diphenyl ethers (PBDEs), polychlorinated biphenyls (PCBs), and dichloro-diphenyl-trichloroethane (DDT)] and P450 [e.g., ethoxyresorufin-O-dealkylase (EROD)] stress in livers from Caspian tern (Hydroprogne caspia) adults and Forster's tern (Sterna fors...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-009-9366-z
更新日期：2010-04-01 00:00:00
abstract：:The bioavailability of Cd, Cu, Zn, and Pb from two metal-contaminated sediments (Bidassoa and Dunkerque) was studied using Crassostrea gigas larvae exposed to sediment elutriates. The metal contents within the sediments, the larvae and larval growth, the condition index, and the induction of metallothionein in the lar...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-006-0046-y
更新日期：2007-07-01 00:00:00
abstract：:Oil sands process-affected water (OSPW), which can be potentially toxic to aquatic biota, is a major by-product of bitumen mining in northern Alberta. The effects of environmental factors on the toxicity of OSPW are understudied. In the present study, the impacts of seasonal changes in water quality on the toxic effec...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-017-0460-3
更新日期：2018-04-01 00:00:00
abstract：:A total of 46 surface soil samples collected from the experimental area, buffer area, and core area of the Yellow River Delta Natural Reserve (YRDNR), China, and an adjacent area outside the reserve were analyzed for 23 PAHs including highly carcinogenic dibenzopyrene isomers. The total concentrations ranged from 87.2...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-014-0085-8
更新日期：2015-02-01 00:00:00
abstract：:The quantitative determination in organs of Oncorhynchus mykiss W. of a premetallized dye (C.I. Acid Violet 66) and the azoic base (C.I. Acid Red 217), used in wool dyeing, is studied in this paper. UV-VIS Spectrophotometry was used for the chromatic quantification and atomic absorption spectrophotometry for the detec...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/BF00212276
更新日期：1992-08-01 00:00:00
abstract：:Herbicidal-mixtures have not been adequately studied in biological systems. Therefore, mixtures of three commonly-used herbicides were evaluated. Alachlor (AL), atrazine (AT), picloram (PI), AL+AT, AT+PI, PI+AL and AL+AT+PI, at 10 ppm (in drinking water) of each herbicide, were provided to mice for 30, as well as for ...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/BF01146160
更新日期：1993-05-01 00:00:00
abstract：:Because of the large size of the former Soviet Union (FSU) and the heavy use of organochlorine pesticides (OCPs) in the FSU, usage information regarding OCPs in the FSU is important in compiling global emission inventories and thus in studying the transport of OCPs among different environmental compartments worldwide....
journal_title：Archives of environmental contamination and toxicology
pub_type： 历史文章,杂志文章
doi：10.1007/s00244-004-0047-7
更新日期：2005-01-01 00:00:00
abstract：:This study determined the concentrations of polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDD/Fs), polychlorinated biphenyls (PCBs), organochlorine (OC) pesticides, and tris(4-chlorophenyl) methane (TCPMe) in human breast milk samples collected in 2003 from primipara mothers living in Penang, Malaysia. OCs were de...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-004-0208-8
更新日期：2005-10-01 00:00:00
abstract：:Heme oxygenase-1 (HO-1), an inducible enzyme, degrades heme to carbon monoxide (CO), iron, and bilirubin. We have investigated the relationship among HO-1 protein expression, HO activity, and CO concentrations in the hippocampus of CO-exposed rats. Western blotting and immunohistochemistry revealed that the enzyme is ...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-010-9524-3
更新日期：2011-01-01 00:00:00
abstract：:The effects of insecticidal control programs for grasshoppers on the population density of birds were assessed under operational conditions in two rangeland sites in Wyoming during an outbreak (19 to 56 grasshoppers m(-2) on >1,500 ha). Malathion, carbaryl, and fipronil were evaluated using large-scale (>/=260 ha) red...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s002449900547
更新日期：1999-11-01 00:00:00
abstract：:Metallothioneins with differing Cd/Zn ratios were prepared in vitro from rat liver zinc-thionein by replacing zinc with cadmium and were injected intraperitoneally to female rats. The distribution of cadmium, zinc, and copper in the kidney supernatant fraction was determined using a Sephadex G-75 column. The distribut...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/BF01055143
更新日期：1979-01-01 00:00:00
abstract：:Lead poisoning of waterfowl has been reported for decades in the Coeur d'Alene River Basin (CDARB) in Idaho as a result of the ingestion of lead-contaminated sediments. This study was conducted to determine whether the addition of phosphoric acid to sediments would reduce the bioavailability and toxicity of lead to ma...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-005-5009-1
更新日期：2006-04-01 00:00:00
abstract：:Zinc (Zn) is an essential micronutrient to aquatic organisms, but increased concentrations may result in accumulation and toxic effects. Water chemistry is known to influence the uptake of Zn in aquatic biota; therefore, organisms inhabiting environments with variable salinities may exhibit different patterns of Zn ac...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-012-9805-0
更新日期：2012-11-01 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：:The calculated, acute oral LD50 of acephate and methamidophos to dark-eyed juncos (Junco hyemalis) was 106 mg/kg and 8 mg/kg, respectively. Brain cholinesterase (ChE) activity in birds that died after acephate poisoning was depressed 80% below that of control birds. Birds that died of acute methamidophos poisoning had...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/BF01055620
更新日期：1981-01-01 00:00:00
abstract：:Phytoestrogens are plant compounds that can act as endocrine disruptors in vertebrates. Biologically active levels of phytoestrogens have been found in aquatic habitats near wood pulp and paper mills, biofuel manufacturing plants, sewage-treatment plants, and agricultural fields. Phytoestrogens are known to cause horm...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-010-9561-y
更新日期：2011-04-01 00:00:00
abstract：:To examine the possible phenotypic defects from barium exposure, a model organism, Caenorhabditis elegans, was chosen to analyze the multiple toxicities in barium-exposed animals. Endpoints of life span, body size, brood size, generation time, head thrash, and body bend were selected for the assessment of barium toxic...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-007-9050-0
更新日期：2008-04-01 00:00:00
abstract：:Growing human populations and increasingly intensive agriculture have resulted in widespread aquatic nitrate pollution. Freshwater mussel populations have been in decline for decades but often are underrepresented in data used for the development of ambient water quality criteria and acute toxicity of nitrate to musse...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-020-00708-z
更新日期：2020-05-01 00:00:00
abstract：:The United States Environmental Protection Agency has defined national in-stream water-quality criteria (WQC) for 157 pollutants. No WQC to protect aquatic life exist for total dissolved solids (TDS). Some water-treatment processes (e.g., pH modifications) discharge wastewaters of potentially adverse TDS into freshwat...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-004-0034-z
更新日期：2005-08-01 00:00:00
abstract：:Perfluorooctanoic acid (PFOA) is a persistent environmental contaminant. Activation of the peroxisome proliferator activated receptor alpha (PPARα) resulting from exposure to PFOA has been extensively studied in rodents. However, marked differences in response to peroxisome proliferators prevent extrapolation of roden...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-014-0058-y
更新日期：2015-01-01 00:00:00
abstract：:Exposure to fluoride concentrations above a threshold of 1.5 mg/L can cause joint pains, restricted mobility, skeletal and dental fluorosis. This study aims to determine the hydrochemical evolution of the fluoride-rich groundwater and estimate the risk of fluoride exposure to the residents of semi-arid northeastern pa...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-020-00794-z
更新日期：2021-01-01 00:00:00
abstract：:The effect of oxyfluorfen was investigated when alga Scenedesmus obliquus has been exposed to different concentrations (7.5, 15, and 22.5 microg x L(-1)) at 12, 24, and 48 hours of exposure. Toxicity test was done by using 13 biomarkers concerning growth rate, chlorophyll content and indicators of photosynthetic and a...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-003-2217-4
更新日期：2003-11-01 00:00:00
abstract：:Diffusive gradients in thin films (DGT) technique was used to determine pore water profile and to assess remobilization character of metals at sediment/water interface. The remobilization of Mn was due to redox reaction in profile, which engendered two large peaks: one with DGT concentration of 1355 µg L(-1) at depth ...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-015-0184-1
更新日期：2016-02-01 00:00:00
abstract：:The sorption of volatile organic analytes from water samples by the Teflon septum surface used with standard glass 40-ml sample collection vials was investigated. Analytes tested included alkanes, isoalkanes, olefins, cycloalkanes, a cycloalkene, monoaromatics, a polynuclear aromatic, and two chloroethenes. Both labor...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s002449900467
更新日期：1999-04-01 00:00:00
abstract：:Di-n-butyl phthalate (DBP) is one of the most ubiquitous plasticizers used worldwide. However, it has negatives effects on the soil, water, atmosphere, and other environmental media and can cause serious pollution. According to the artificial soil test and previous studies, this study was conducted to evaluate the tox...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-017-0451-4
更新日期：2018-05-01 00:00:00
abstract：:Among the painters handling polyurethane varnish in two furniture manufacturing factories with high toluene diisocyanate (TDI) exposure (0.79 mg/m3 and 0.31 mg/m3), 26.3% and 15% subjects, respectively displayed asthmatic symptoms, lung function loss, and an increment in mast cell degranulation percentage specific to ...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/BF01183884
更新日期：1991-11-01 00:00:00
abstract：:Determination of soil concentrations of trace and pollutant metals over large spatial areas requires laborious and expensive sampling effort. In this study, we examined the feasibility of using calves as biomonitors of soil semimetal and trace metal concentrations in Galicia (NW Spain), a region in which calves are pr...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00244-002-1168-5
更新日期：2002-07-01 00:00:00
abstract：:We determined mercury and selenium in 43 eggs (eggshell, albumen, and yolk) which belong to different clutch sizes of Audouin's gull from the Chafarinas Islands. The results were compared with those obtained previously with the same species at the Ebro Delta. Both, the intra- and the interclutch sources of variability...
journal_title：Archives of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s002440010087
更新日期：2000-07-01 00:00:00
