نتایج جستجو برای: including benzene
تعداد نتایج: 991227 فیلتر نتایج به سال:
A followup study of 2-17 yr was performed on 44 pancytopenic patients with benzene exposure. They had been subjected to high concentrations of benzene (150-650 ppm) in adhesives for 4 mo to 15 yr. The benzene content of the adhesives varied between 9% and 88%, (average 50%). Complete remission was seen in 23 patients and fatal outcome due to complications of pancytopenia was observed in 14 panc...
INTRODUCTION The increased use of incense, magic candles and other flameless products often produces indoor pollutants that may represent a health risk for humans. Today, in fact, incense and air fresheners are used inside homes as well as in public places including stores, shopping malls and places of worship. As a source of indoor contamination, the impact of smoke, incense and sparklers on h...
Dear Editors: Although there were numerous case reports showing the possible role of benzene in the development of leu-kemia, the first epidemiologic study on this problem appeared in 1974 (1). From 1967 to September 1973,26 patients with leukemia were investigated among 28,500 shoe, slipper, and handbag workers chronically exposed to benzene in Istanbul, Turkey. Seventeen of them were studied ...
Introduction & Objective: Benzene is one of the most common volatile organic compounds in the indoor and outdoor environments that has always been considered as one of the causes of air pollution. Thus before being discharged to the environment, it must be treated from pol-luted air stream. The aim of this study was to determine the efficiency of catalytic ozonation process with carbosieve in...
vanadium supported on highly ordered nanoporous silica (vox-lus-1) was synthesized and characterized by xrd, nitrogen adsorption‑desorption isotherms and uv-visible spectrophotometer. direct oxidation of benzene to phenol in liquid phase by h2o2 peroxide were examined by using various solvents (methanol, acetone, acetic acid, acetonitryl). the maximum yield (25%) and selectivity (73%) of the ph...
We have previously reported that benzene decreases peripheral white blood cell and platelet counts and specifically lowers subsets of several blood cell types, including CD4+-T cells, B cells, NK cells, and granulocytes. Diminished thymus function has been implicated as a mechanism for CD4+-T cell loss in other conditions such as AIDS by assays of T cell receptor excision circles (TRECs), a mar...
OBJECTIVE The purpose of this study was to evaluate the risk of spontaneous abortion among the wives of male workers occupationally exposed to benzene. METHODS The wives of 823 men working in two chemical plants at the time of the study were asked to complete a questionnaire describing their pregnancies. The analysis of the 1739 pregnancies that ended in a spontaneous abortion or a birth is p...
Biomarkers can be classified into three categories: biomarkers of exposure, susceptibility, and early effect. Along with colleagues from the National Cancer Institute, the Chinese Academy of Preventive Medicine in Beijing, the Shanghai Anti-Epidemic Center, the University of North Carolina, and other institutions in the United States, we have applied various biomarker methods to samples obtaine...
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