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11.
Tureyen Oktay E. Yilmaz Atilla Yakan Sevil D. Yetiskin Berkant Okay Oguz Okay Oya S. 《Environmental science and pollution research international》2021,28(4):3766-3773
Environmental Science and Pollution Research - In this study, two macroporous butyl rubber (BR)–based sorbents prepared in benzene (H-BR) and in cyclohexane (L-BR) with different porosities... 相似文献
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Polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) distributions in the Bay of Marmara sea: Izmit Bay 总被引:1,自引:0,他引:1
Telli-Karakoç F Tolun L Henkelmann B Klinn C Okay O Schramm KW 《Environmental pollution (Barking, Essex : 1987)》2002,119(3):383-397
In 1999, the concentrations of 16 polycyclic aromatic hydrocarbons (PAHs), the total PAH and polychlorinated biphenyls (PCBs) were measured in sea water, sediment and mussels collected along the coast of Izmit Bay, the most important bay of the Marmara Sea. The total-PAH concentrations, measured by Spectrofluorometry were in the range of 1.16-13.68 microg/l in sea water, in the range of 30.0 1670.0 microg/g dry weight in sediments and in the range from 5.67 to 14.81 microg/g wet weight in edible part of mussel. HPLC revealed Phenanthrene (three rings), chrysene (four rings) and benz[a]antracene (five rings) to be the dominant PAHs in sea water, while 16 different PAHs compounds were observed and measured in mussel samples. The most pollution occured at Dogu Kanali and Dil Deresi where were the main rivers containing wastes fall into the the Izmit Bay. Although the maximum mono-ortho PCB concentrations in sea water were measured in the Dil Deresi River (26.33 ng/l) and the Solventa? (22.19 ng/l) stations, maximum PCB concentrations in mussels were measured in the SEKA (28.11 microg/kg) and the Dil Deresi River (25.68 microg/kg). The dominant congeners of PCBs were from tetra to hexachlorobiphenyls. The toxicity equivalent values were very low in sea water and mussels. 相似文献
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Ramos-Meza Carlos Samuel Zhanbayev Rinat Bilal Hazrat Sultan Mubbashra Pekergin Zehra Betül Arslan Hafiz Muhammad 《Environmental science and pollution research international》2021,28(47):66957-66967
Environmental Science and Pollution Research - The fact is that output volatility and carbon dioxide (CO2) emissions move together over the period. This empirical study examines the dynamic effect... 相似文献
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Zehra Bozkurt 《Environmental Forensics》2018,19(1):1-13
The objective of this study was to determine the concentrations of inorganic ions present in particulate matter smaller than 10 µm (PM10), released into the environment by industrial, domestic and mobile sources in Duzce. To assess spatial variations, samples were collected from two sampling sites that had urban and suburban characteristics. Further, the process was carried out in two seasons to understand the seasonal variations. An ion chromatography device was used for analyzing the inorganic ion content in the collected samples. The highest levels of inorganic ion concentrations were measured at the urban sampling site during the winter campaign. Furthermore, the highest ion concentrations were measured for SO42? ion at both sampling sites and during both seasons, while the lowest concentrations were measured for Br?. Moreover, there were significant relationships between meteorological parameters and ion concentrations. A comparison of the cation and anion equivalence values using seasonal CE/AE (cation equivalence/anion equivalence) ratios showed that the aerosol matter had alkaline characteristics during both seasons. The mean value for the CE/AE ratios was 1.58 in winter and 2.06 in summer at the urban sampling site and 1.36 in winter and 1.52 in summer at the suburban sampling site. The interrelationships among the ions were determined by Pearson correlation analysis. Based on the correlation analyses, the ions emitted from common sources and those exposed to similar atmospheric conditions displayed strong correlations with each other. 相似文献
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It is well known that use of low cost and abundant waste materials in microbial fermentations can reduce product costs. Kitchen wastes disposed of in large amounts from cafeterias, restaurants, dining halls, food processing plants, and household kitchens contain high amounts of carbohydrate components such as glucose, starch, and cellulose. Efficient utilization of these sugars is another opportunity to reduce ethanol costs. In this study, the effect of pretreatment methods (hot water, acid solutions, and a control) on enzymatic hydrolysis of kitchen wastes was evaluated using a kinetic modeling approach. Fermentation experiments conducted with and without traditional fermentation nutrients were assessed at constant conditions of pH 4.5 and temperature of 30 °C for 48 h using commercial dry baker’s yeast, Saccharomyces cerevisiae. The control, which involved no treatment, and hot water treated samples gave close glucose concentrations after 6 h. The highest and lowest rates of glucose production were found as 0.644 and 0.128 (h?1) for the control (or no-pretreated (NPT)) and 1% acid solutions, respectively. The fermentation results indicated that final ethanol concentrations are not significantly improved by adding nutrients (17.2–23.3 g/L). Thus, it was concluded that product cost can be lowered to a large extent if (1) kitchen wastes are used as a substrate, (2) no fermentation nutrient is used, and (3) hydrolysis time is applied for about 6 h. Further optimization study is needed to increase the yield to higher levels. 相似文献
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F. Oya 《Marine Biology》1987,96(2):225-234
The biology of the hippolytid shrimp Heptacarpus futilirostris (Bate) was studied in a tidepool at Kominato, central Japan from January 1983 to June 1984. In males, the relative growth
ratio between the third maxilliped length and body length revealed a turning point at approximately 15 mm in body length.
Population recruitment was presumed to continue from April to December. The range of body length did not increase from July
to October, and thereafter increased rapidly in both sexes up to a maximum range, i.e. from 6 to 29 mm in January. The wide
range was presumably due to the simultaneous occurrence of rapid growth with population recruitment. The growth rates of size
groups above and below 15 mm were different in the males observed in January. Large males disappeared, probably due to death,
and small males participated in reproduction after July. The growth rate increased from late autumn to spring and decreased
from summer to early autumn, and was influenced by relative food abundance, especially seaweeds. Two parasitic isopods were
identified: Bopyrinella antilensis nipponica in the branchial cavity, and Epiphryxus sp. on the abdomen. It is suggested that parasites have more influence on maturity than on growth. Ovigerous females were
found from January to October, with the breeding season peak between April and June. The relationship between female body
length (L) and clutch size (N) was expressed by the regression equation: N=5.11 L1.6347 (r=0.57). This species is identified as a multiple breeder. The relatively large number of larvae presumably compensates for
the low larval survival rate. 相似文献
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Diana Lupulovic Sava Lazic Jasna Prodanov-Radulovic Nereida Jiménez de Oya Estela Escribano-Romero Juan-Carlos Saiz Tamas Petrovic 《Food and environmental virology》2010,2(2):110-113
Hepatitis E virus (HEV) genotype 3 infections in pigs and humans have been lately reported in Europe. In the present study,
the prevalence of anti-HEV IgG antibodies in swine was investigated, for the first time, in Serbia by means of an ELISA based
on a recombinant open reading frame 2 protein of HEV genotype 3. A total of 315 serum samples from 3 to 4 months-old healthy
backyard pigs, collected in 63 herds from 28 towns and villages of 4 different districts of the Vojvodina province, in the
northern part of Serbia, were tested. A 34.6% (109/315) of the sera tested were positive. The prevalence of anti-HEV antibodies
varied widely between municipalities (range 16.7–75.0%) and herds (range 0–100%). These data indicate that HEV infection is
widespread in Serbian backyard pigs. 相似文献
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Nereida Jiménez de Oya Inmaculada Galindo Estela Escribano-Romero Ana-Belén Blázquez Julio Alonso-Padilla Nabil Halaihel José M. Escribano Juan-Carlos Saiz 《Food and environmental virology》2009,1(2):77-84
Hepatitis E virus (HEV) is a fecal-orally transmitted virus that is endemic in many geographical areas with poor sanitary
conditions and inadequate water supplies. In Europe, a low-endemic area, an increased number of autochthonous sporadic human
cases of patients infected with HEV strains of genotype 3, have been reported lately. The relatively high prevalence of HEV
genotype 3 infections in European pigs has raised concerns about a potential zoonotic transmission to humans. Determination
of HEV seroprevalence in pigs would help to clarify its incidence and possible zoonotic implications. To this purpose, we
have expressed and partially characterized swine genotype 3 HEV open reading frame-2 proteins upon infection of Sf21 insect
cells with recombinant baculoviruses. The use of the expressed proteins as diagnostic antigens for the detection of antibodies
to HEV has been further assayed with human and swine sera. 相似文献