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11.
Mikov I Stankov K Vasovic V Mikov A Golocorbin-Kon S Mikov M 《International journal of occupational safety and ergonomics》2012,18(1):107-111
The toxicity of benzene is not an issue of the past, especially in developing countries. Bone marrow toxicity is demonstrated among workers. In this study, the effect of simultaneous exposure to benzene and ethanol on benzene metabolism in mice was investigated by measuring the excretion of thioethers in urine. Urinary thioether excretion significantly decreased in the mice receiving both benzene and ethanol compared with the animals receiving benzene only. The assay of determining thioethers in urine samples in this study is a simple and low-cost method, thus suitable for routine use, especially in developing countries, not only for benzene, but also for other alkilating agents, which can be found during occupational exposure. Our results suggest that further research is needed to elucidate the mechanisms of decreased urinary excretion of thioether after simultaneous exposure to benzene and ethanol. 相似文献
12.
Ruzica Micic Snezana Mitic Biljana Arsic Anja Jokic Milan Mitic Danijela Kostic Aleksandra Pavlovic Milan Cekerevac Ljiljana Nikolic-Bujanovic Zaklina Spalevic 《Environmental monitoring and assessment》2015,187(6):389
Zinc, copper, iron, chromium and cobalt are essential elements for human health, showing toxicity only in high concentrations, while lead and cadmium are extremely toxic even as traces. Therefore, it is important to monitor the contents of toxic metals in vegetables. Large number of vegetables is grown and used in nutrition, in Kosovo. The concentrations of selected elements in vegetables (radish, onion, garlic and spinach) from Kosovo were determined using ICP-OES method. Oral intake of metals and health risk index were calculated. Statistical analysis indicated numerous positive correlations between concentrations of selected elements in vegetables. As a result of principal component analysis, 15 new variables were obtained which were characterized by eigenvalues. The sequence of health quotients for the heavy metals followed the decreasing order Zn?=?Mn?>?Pb?>?Cu?>?Ni?>?Fe?>?Cd?>?Co?>?Cr. The health quotients for all investigated heavy metals were below 1 (one), which is considered safe. The vegetables from Kosovo are mainly safe for use in everyday diet. 相似文献
13.
Dragana??or?evi?Email author Drubavka?Radmanovi? Aleksandra?Mihajlidi-Zeli? Mila?Ili? Petar?Pfendt Zorka?Vukmirovi? Pedrag?Poli? 《Environmental Chemistry Letters》2004,2(3):147-150
We applied statistical methods to the data of a 5-year sampling period to characterize the features of trace elements in airborne particulate matter at the South Adriatic Coast. The analysis of surface soil samples was also performed. The data were processed by cluster analysis, enrichment factor determination and receptor rose statistics. It is shown that the principal element association consists of Fe, Mn and Ti originating from surface material resuspension. Hg and Se were shown to originate from more complex natural and anthropogenic processes. A strong emission source of Cd and Se was identified in the SSE direction.Selected article from the Regional Symposium on Chemistry and Environment Krusevac, Serbia, June 2003, organized by Dr. Branimir Jovancicevic. 相似文献
14.
Puławska Aleksandra Manecki Maciej Flasza Michał Styszko Katarzyna 《Environmental geochemistry and health》2021,43(9):3533-3556
Environmental Geochemistry and Health - The composition and distribution of airborne particles in different locations in a salt mine were determined in terms of their origin, the distance from the... 相似文献
15.
Elzbieta Kalisinska Irena Bosiacka-Baranowska Natalia Lanocha Danuta Kosik-Bogacka Katarzyna Krolaczyk Aleksandra Wilk Katarzyna Kavetska Halina Budis Izabela Gutowska Dariusz Chlubek 《Environmental geochemistry and health》2014,36(6):1063-1077
The aim of the study was to investigate fluoride concentrations in bone, brain and pineal gland of goosander Mergus merganser wintering in the Odra estuary (Poland) as well as in fish originating from its digestive tract. The fluoride concentrations were determined with potentiometric method. Medians of concentrations in goosander had the highest and the lowest values in pineal gland and brain (>760 and <190 mg/kg, respectively). Fluoride concentration in the pineal gland was significantly greater than in the bone and the brain of the duck. In fish, the fluoride concentration ranged from 37 to 640 mg/kg and significant correlation was revealed between the fluoride concentration and fish weight and length. Based on own results and data of other authors, a daily fluoride intake by the goosander in the Odra estuary was estimated at 15 mg. So high fluoride concentrations like in the duck have not been found in mammal brains. 相似文献
16.
Snežana Štrbac Aleksandra Šajnović Ljiljana Budakov Nebojša Vasić Milica Kašanin-Grubin Predrag Simonović 《Chemistry and Ecology》2014,30(2):169-186
In aquatic environments metals originate from various natural and anthropogenic sources. The degree of contamination in fish tissues depends on the pollutant, fish species, their mode of feeding, sampling site and trophic level. This study presents concentrations of Al, As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Se, Sr and Zn in sediment and liver of four ecologically different fish species: piscivorous northern pike (Esox lucius L.), benthivorous sterlet (Acipenser ruthenus L.) and silver bream (Brama brama L.), and omnivorous common carp (Cyprinus carpio L.). Fish were caught at four sites along the stretch of the River Tisza in Serbia during October 2010. The concentrations of metals have been assessed using the inductively coupled plasma – optical emission spectrometry. Results revealed that metals with the highest values in sediment and fish samples were Al and Fe, respectively and sometimes concentrations of Zn are in the same order of magnitude as Fe concentrations. The highest concentration of metals was recorded in omnivorous common carp. 相似文献
17.
Marta Wieczorek-Dąbrowska Agnieszka Tomza-Marciniak Bogumiła Pilarczyk Aleksandra Balicka-Ramisz 《Chemistry and Ecology》2013,29(2):100-110
The present paper examines the degree of environmental contamination in areas covered by the Natura 2000 programme, located in north-western Poland, with selected heavy metals based on their concentration in target organs of roe and red deer. Lead, cadmium, copper, iron, and zinc concentrations were determined by inductively coupled plasma–atomic emission spectrometry. Residues of lead and cadmium were found in most of the analysed samples of roe and red deer organs The concentration of cadmium in the organs of the animals studied was much higher than that of lead. The median for Pb in liver and kidneys was 0.055 and 0.092 μg/g dry weight (d.w.) in roe deer, and 0.067 and 0.081 μg/g d.w. in red deer, respectively. The median for liver and kidney cadmium was 0.770 and 6.139 μg/g d.w. in roe deer, and 0.422 and 6.365 μg/g d.w. in red deer, respectively. Our study has demonstrated that this area is laden with lead and cadmium. This is evidenced by the fact that maximum permissible levels of these elements in the organs of red and roe deer, which were used as bioindicators of environmental contamination, were exceeded. 相似文献
18.
Roman Cieślak Maria Widerszal-Bazyl Aleksandra Łuszczyńska-Cieślak 《International journal of occupational safety and ergonomics》2013,19(2):257-292
The study concerns the moderating role of two variables—hardiness and social support—in the relation between job stressors and well-being. It was checked if there is a connection between hardiness and social support, and if these variables are directly related to the level of well-being. It was also hypothesized that hardiness and social support buffer the negative influence of stressors on well-being. The fact that social support and well-being are multidimensional variables was taken into account.The cross-sectional study was conducted on a group of 200 women employed as office workers. The results showed that hardiness correlates with the indexes of emotional support as well as practical support coming from supervisors. The connection, however, was not strong. Hardiness and social support were directly connected with the level of well-being. Interaction of these two independent variables played a marginal role. As far as the buffering role of these variables was concerned, the results have shown that hardiness did not play a buffering role and social support did to a limited degree only.The results of the study proved that it is justifiable to treat social support and well-being as multidimensional variables. 相似文献
19.
Exposure to environmental tobacco smoke (ETS) is an important worldwide public health issue. The present study demonstrates that cigarette smoke can be a major source of endotoxin (lipopolysaccharide, LPS) in indoor environments. Gas-chromatography/mass-spectrometry was used to determine 3-hydroxy fatty acids as markers of endotoxin in air-borne house dust in homes of smokers and non-smokers. Air concentrations of endotoxin were 4-63 times higher in rooms of smoking students than in identical rooms of non-smoking students. The fact that cigarette smoke contains large amounts of endotoxin may partly explain the high prevalence of respiratory disorders among smokers and may also draw attention to a hitherto neglected risk factor of ETS. 相似文献
20.
Joanna Miedzianka Anna Pęksa Agnieszka Nemś Katarzyna Drzymała Aleksandra Zambrowicz Przemysław Kowalczewski 《Journal of environmental science and health. Part. B》2020,55(1):42-51
AbstractPotato sprouts could be a valuable resource of phytochemicals such as secondary plant metabolites, potential antioxidants and nutritive compounds. In this work, potato sprout extracts of five varieties were examined; they differed in major glycoalkaloid content, trypsin inhibitor activity, total polyphenol content and antioxidant activity, as well as in antimicrobial activity against Gram?+?and G???bacteria, and yeast. Sprouts of colored-fleshed tubers were characterized by higher trypsin inhibitor activity than sprouts of yellow potatoes. The strongest microorganism growth inhibition effect was observed for macerate with sprouts from the purple-fleshed Blaue Annelise variety against B. subtilis, whereas C. albicans yeasts were sensitive to macerates with sprouts from purple-fleshed Blue Congo and yellow-fleshed Vineta potato varieties. 相似文献