Abstract：
:Our purpose was to detect, isolate and characterize tensioactive agents with or without emulsifying activity from marine bacterial strains present in seawater and sediment samples from the Venezuelan Atlantic Front. Biosurfactants found in cell-free supernatants from all cultures presented high surface activity as they were able to reduce the water surface tension from 72 dynes cm(-1) to values between 41.7 and 33.9 dynes cm(-1). However, high indirect CMC values were registered for the most of these compounds (51.4%-56.1% v/v). Culture supernatants from S3 and S29 strains showed highest emulsifying activity in the dispersion assay with diesel oil (absorbance 1.06 and 1.18, respectively), while supernatant from the S10 strain induced the most stable oil-in-water emulsions with 16° and 25°API crude oils. Only culture supernatant from S3 strain was able to produce stable oil-in water emulsions with diesel oil and both type of crude oils.
journal_name
Bull Environ Contam Toxicoljournal_title
Bulletin of environmental contamination and toxicologyauthors
Bozo-Hurtado L,Rocha CA,Malavé R,Suárez Pdoi
10.1007/s00128-012-0820-7subject
Has Abstractpub_date
2012-11-01 00:00:00pages
1068-72issue
5eissn
0007-4861issn
1432-0800journal_volume
89pub_type
杂志文章abstract：:A two season field experiment was conducted to study the magnitude of Benthiocarb residue in transplanted paddy field soil of plough layer (6''), beyond the plough layer (12'') as well as in harvested straw, grain and husk. Transplanted paddy fields were treated once with Benthiocarb (Saturn 50 EC) @1500 g.a.i., 2500 ...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-007-9299-z
更新日期：2007-12-01 00:00:00
abstract：:The study of NO3 (-) contamination in groundwater is becoming increasingly significant as high concentrations of NO3 (-) in groundwater can do damage to public health. Nitrate pollution in the shallow, middle-deep and deep aquifers in the urban district of Zhanjiang was studied using the ordinary Kriging interpolation...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-016-1822-7
更新日期：2016-08-01 00:00:00
abstract：:This study focused on comparing the lethal and sublethal toxicity of water-accommodated fractions (WAF) and chemically enhanced WAF (CEWAF) of crude oil to zebrafish (Danio rerio) on early life stages (ELS). Results showed that the addition of GM-2 dispersant caused an increase in the levels of total petroleum hydroca...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-018-2413-6
更新日期：2018-09-01 00:00:00
abstract：:Amynthas agrestis and Metaphire hilgendorfi are being distributed across North America with unknown ecosystem impacts. Forest soils in urban areas sequester trace elements and earthworms may be bioaccumulating them. This study examined Cd, Cr, Co, Cu, Mn, Ni, Pb, V, and Zn in soils and earthworm tissues at 28 urban fo...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-019-02669-z
更新日期：2019-09-01 00:00:00
abstract：:This work evaluates current metal concentrations (Cd, Cu, Pb and Zn) and the operational bio-available chemical extraction fraction in surface sediments in Mazatlán Harbor in Northwest México. Sediment samples were also analyzed for organic carbon, carbonates and particle size. Ranges of bulk metal were as follows: Cd...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-007-9334-0
更新日期：2008-02-01 00:00:00
abstract：:To investigate the biomagnification factor (BMF) of EDCs by the polychaete, Perinereis nuntia, organisms were exposed to EDCs through their diet. BMF values ranged from 0.001 to 0.028 indicating that EDCs were not biomagnified. Elimination rates were (0.20-0.25 day(-1)) and were higher than uptake rate (0.0003-0.003 d...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-013-1073-9
更新日期：2013-10-01 00:00:00
abstract：:Chromafenozide is a lepidopteran insecticide. It is highly effective in controlling various lepidopteran pests. Chromafenozide technical and formulation (80WP) was applied at 2.5 and 5.0 μg g(-1) in 4 types of soils (air dried and sieved) separately in laboratory condition. Half-lives of active ingredient were calcula...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-012-0691-y
更新日期：2012-08-01 00:00:00
abstract：:The behavior of estrogens (estrone: E1, 17beta-estradiol: E2, estriol: E3 and ethinylestradiol: EE2) and an androgen (testosterone) in the water and sludge from Johkasou in Japan was investigated. The concentrations of E1, E2, E3 and testosterone in water samples from the Johkasou were 33-500, N.D. approximately 150, ...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-009-9755-z
更新日期：2009-09-01 00:00:00
abstract：:Recent studies have documented environmental contamination by PCBs in soil from different areas in Mexico (industrial, mining, and urban sites). However, the real significance of that soil contamination has not been established. Therefore, the aim of this study was to perform a human health risk assessment (Monte Carl...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-017-2148-9
更新日期：2017-09-01 00:00:00
abstract：:The aim of the present study was to assess the sulphate [Formula: see text] and iron (Fe) contamination and seasonal variations in the water resources (groundwater, surface water, and mine water) of the West Bokaro coalfield region, India. One hundred and twenty-four water resources samples were collected from the coa...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-017-2240-1
更新日期：2018-02-01 00:00:00
abstract：:The largest environmental release of coal ash in US history occurred in December 2008 with the failure of a retention structure at the Tennessee Valley Authority Kingston Fossil Fuel Plant in East Tennessee. A byproduct of coal-burning power plants, coal ash is enriched in metals and metalloids such as selenium and ar...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-013-1149-6
更新日期：2014-02-01 00:00:00
abstract：:Estrogenic activities of river water from four representative cross-sections of the Yellow River (Zhengzhou section) and their effects on reproduction and development of fish were assessed. MVLN assay showed estradiol equivalents of river water from Yiluohe, Xinmanghe, Qinhe and Huayuankou cross-sections were 1.09 ± 0...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-016-1930-4
更新日期：2016-12-01 00:00:00
abstract：:In vitro short-term chronic phytotoxicity germination and root elongation test were applied to test the effects of nickel (Ni) in seed germination and root elongation in six plants species: Cucumis sativus (Cucurbitaceae), Lepidium sativum and Brassica nigra (Brassicaceae), Trifolium alexandrinum and Medicago sativa (...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-013-1166-5
更新日期：2014-04-01 00:00:00
abstract：:Soil mercury concentrations at a typical small-scale mine site in the Bolivian Andes were elevated (28-737 mg/kg or ppm) in localized areas where mercury amalgams were either formed or vaporized to release gold, but was not detectable beyond approximately 10 m from its sources. Arsenic was measurable, exceeding known ...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-017-2213-4
更新日期：2018-02-01 00:00:00
abstract：:To investigate the concentration and congener patterns of polybrominated diphenyl ethers (PBDE) in outdoor air from farmland area, air samples were collected using passive and active sample methods from April to November 2012, in an e-waste dismantling town in the Guangzhou region of South China. The sum of gaseous an...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-018-2273-0
更新日期：2018-03-01 00:00:00
abstract：:Adult mortality, biomass, fecundity and viability of cocoons were studied in Eisenia fetida and Octolasion tyrtaeum, in response to glyphosate exposure in soil. Exposure tests were carried out following USEPA procedure, with five concentrations of glyphosate in soil and a control. O. tyrtaeum was more sensitive to the...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-014-1312-8
更新日期：2014-08-01 00:00:00
abstract：:The effects of multi-metal mixtures on the life-table demography of rotifers are not well known. In this study, the freshwater rotifer Brachionus calyciflorus was exposed to mixture of Cu, Zn, Cd, Cr, and Mn, and the life-table demographic parameters including net reproductive rate, generation time, life expectancy at...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-014-1281-y
更新日期：2014-08-01 00:00:00
abstract：:The adsorption of contaminants plays an important role in the process of their elimination from a polluted environment. This work describes the issue of loading environment with lead Pb(II) and the resulting negative impact it has on plants and living organisms. It also focuses on bentonite as a natural adsorbent and ...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-016-1950-0
更新日期：2016-12-01 00:00:00
abstract：CONCLUSIONS:Twenty five days of hourly air sampling at seven parking garages of the enclosed type indicated a mean carbon monoxide concentration of 58.1 ppm (S.D. ± 23.15, and S.E. ± 4.63). This degree of exposure for eight hours each day poses a potential occupational hazard to those already having some degree of impa...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/BF01684019
更新日期：1967-05-01 00:00:00
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journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-011-0255-6
更新日期：2011-05-01 00:00:00
abstract：:Bivalves have traditionally been considered good bioindicators due to their sensitivity to pollution, among other features. This characteristic is shared by several other non-bivalve species as well, though studies in this respect remain scarce. This work aims to compare biomarker sensitivity to chronic port pollution...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-016-1839-y
更新日期：2016-07-01 00:00:00
abstract：:Agricultural lands are exposed to pesticides continuously, which impact on habitat of wild species, such birds. The purpose of this study was to determine the plasma cholinesterase activity in two passeriform wild birds, the house finch (Carpodacus mexicanus) and the house sparrow (Passer domesticus), from agricultura...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-012-0864-8
更新日期：2013-01-01 00:00:00
abstract：:The aim of this study was to evaluate Copper (Cu), Zinc (Zn), Selenium (Se), Chromium (Cr) and Cadmium (Cd) concentrations in liver, muscle, gills and kidney tissues of Capoeta trutta collected from four sites of Keban Dam Lake, Turkey. The highest heavy metal level in all tissues was for Zn, while Cd was the lowest. ...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-012-0744-2
更新日期：2012-09-01 00:00:00
abstract：:We report the levels of mercury (Hg) and nine organochlorine pesticides [OCPs: α-hexachlorocyclohexane (HCH), β-HCH, γ-HCH, δ-HCH, α-Endosulfan, β-Endosulfan, Endosulfan sulfate, p,p'-dichlorodiphenyldichloroethylene (DDE) and p,p'-dichlorodiphenyldichloroethane (DDD)] in the terrestrial environment (moss and soil) an...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-018-2497-z
更新日期：2019-01-01 00:00:00
abstract：:Total mercury levels (Thg) were quantified in Clarias gariepinus captured from the Sagua la Grande River (Cuba) in the vicinity of an active chlor-alkali plant, and relationships among place of capture; fish size, weight, and sex; and THg levels were assessed. THg levels ranged from 67 to 375 ng/g ww in collected fish...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-008-9568-5
更新日期：2009-01-01 00:00:00
abstract：:The pollution of polycyclic aromatic hydrocarbons (PAHs) has been widely used to assess the potential impact of anthropogenic activities on aquatic environments because their occurrence in water is closely tied to urban activities. Many PAHs possess mutagenic and carcinogenic properties (Menzie et al. 1992). PAH distr...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-007-9092-z
更新日期：2007-08-01 00:00:00
abstract：:Melano-macrophage centers (MMCs) are nodular clusters of pigmented macrophages, implicated in homeostasis and destruction and recycling of endogenous and exogenous material. They can increase in size and/or frequency under environmental stress resulting in immunohistological biomarkers of water quality. Fluoxetine (FL...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-019-02770-3
更新日期：2020-02-01 00:00:00
abstract：:Juveniles Rhamdia quelen fish species were exposed to diclofenac for 96 h at concentrations of 0.2, 2, and 20 μg/L. Biochemical, genetic, and hematological biomarkers were assessed in the liver, kidney, and blood in order to evaluate the toxic effects. No oxidative stress was observed in liver. In kidney the superoxid...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-015-1693-3
更新日期：2016-01-01 00:00:00
abstract：:Chronic toxicity testing using the luminescent bacterium, Vibrio fischeri, has recently been demonstrated to be a suitable bioassay for water quality monitoring. The toxicity evaluation is typically based on determining the EC50 at specific time points which may lead to overlooking the dynamic nature of luminescence r...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-016-2008-z
更新日期：2017-02-01 00:00:00
abstract：:Amelioration of mine soil is challenging because of the lack of biologically active organic matter. The study was aimed to recycle yard waste into compost and biochar and to use them to reclaim mine soil. Biochar prepared at 350 °C showed the highest stable organic matter yield index and was used for the experiments. ...
journal_title：Bulletin of environmental contamination and toxicology
pub_type： 杂志文章
doi：10.1007/s00128-020-03011-8
更新日期：2020-10-06 00:00:00
