نتایج جستجو برای: benzene

تعداد نتایج: 19803  

ژورنال: طب کار 2015

Introduction: Benzene, Toluene, Ethyl Benzene and Xylene (BTEX) are Volatile Organic Compounds (VOCs) with similar physical and chemical characteristics. BTEX existing in gasoline releases to the air in result of the gasoline evaporation and the staffs are exposure to it in gasoline stations. The main goal of this project is to determine the risk of occupational exposure to BTEX compounds amon...

Introduction and purpose: Air pollution has been recognized as the most important environmental risk factor worldwide. Benzene which is one of the four pollutants attributed to BTEX (Benzene, Toluene, Ethylbenzene, and Xylene) has been proven to be a carcinogenic component. These pollutants can be easily absorbed and taken into the body via inhalation. With this background in mind, the present ...

Journal: :Environmental Health Perspectives 1994
M A Medinsky P M Schlosser J A Bond

Benzene, an important industrial solvent, is also present in unleaded gasoline and cigarette smoke. The hematotoxic effects of benzene are well documented and include aplastic anemia and pancytopenia. Some individuals exposed repeatedly to cytotoxic concentrations of benzene develop acute myeloblastic anemia. It has been hypothesized that metabolism of benzene is required for its toxicity, alth...

رحیم پور, رزاق , سمرقندی, محمدرضا , شعبانلو, امیر , مهرعلی پور, جمال ,

Introduction & Objective: BTEX compounds (Benzene, Toluene, Ethylbenzene, Xylene iso-mers) are among the most consumed and dangerous volatile organic compounds which can cause adverse health effects in humans. The water pipe smoke contains numerous toxic compounds such as BTEX compounds.The aim of this study was to evaluate the personal exposure to BTEX compounds at traditional restaurants of H...

ژورنال: بیمارستان 2015
سید صومعه, میر غنی, وطنی شعاع, جواد, کاردان یامچی, حسین,

Background: Exposure to some volatile organic compounds such as benzene, toluene, ethyl benzene and xylene cause adverse effects on organs and nervous system and moreover causes spread of diseases such as cancer , leukemia which would result in increasing  medical expenses. This study is aimed to detect and measure BTEX (benzene, toluene, ethylbenzene and xylene) in air and compare it with reco...

ژورنال: Anatomical Sciences Journal 2005
Amini, Ali, Doulah, Abdol Hosein, Eftekhari, Ali, Shamili, Cyrus,

Purpose: Study of benzene effects on kidney structure in mammals (mouse). Materials and Methods: The mice were studied in 3 groups: controls, solvent and treatment, at favorable laboratory conditions. Treatment mice were administered orally of benzene (0.1cc of benzene solution) for 10 days at a dose 1000 mg/kg of body weight. At the end of each period, the kidneys separated and fixed in paraf...

Journal: :ارتقای ایمنی و پیشگیری از مصدومیتها 0
منصور رضازاده آذری rm azari دانشگاه علوم پزشکی شهید بهشتیسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) سید یونس حسینی sy hosseni دانشگاه علوم پزشکی شهید بهشتیسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) رضوان زنده دل r1 zendehdel دانشگاه علوم پزشکی شهید بهشتیسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) حمید سوری h soori دانشگاه علوم پزشکی شهید بهشتیسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences)سازمان های دیگر: دانشگاه علوم پزشکی شهید بهشتی محمد علی موسویون ma musaviuon دانشگاه علوم پزشکی شهید بهشتیسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences)

backgrounds and aims: semi automated processes of iranian tire manufacturing factories lead to significant occupational exposures to benzene and toluene compounds. this study was conducted to evaluate the magnitude and risk of workers exposures. materials and methods: personal monitoring of 100 workers (10 groups) was performed using niosh method no.1501 in two tire manufacturing factories in t...

Journal: :Energies 2021

A novel complex absorbent composed of polyethylene glycol 200 (PEG200) and ionic liquids (ILs) was prepared for the absorption volatile organic compounds (VOCs) such as dichloromethane (DCM) benzene. We absorbents [EMIM][Cl], [BMIM][Cl], [HMIM][Cl], [BMIM][BF4], [BMIM][PF6], [BMIM][NTF2], PEG200, respectively, studied properties these six DCM The results show that under optimized situation, abs...

Journal: :Occupational and environmental medicine 1995
C N Ong P W Kok B L Lee C Y Shi H Y Ong K S Chia C S Lee X W Luo

OBJECTIVE To evaluate the relations between environmental benzene concentrations and various biomarkers of exposure to benzene. METHODS Analyses were carried out on environmental air, unmetabolised benzene in urine, trans, trans-muconic acid (ttMA), and three major phenolic metabolites of benzene; catechol, hydroquinone, and phenol, in two field studies on 64 workers exposed to benzene concen...

Journal: :Applied and environmental microbiology 2013
Tian Zhang Pier-Luc Tremblay Akhilesh Kumar Chaurasia Jessica A Smith Timothy S Bain Derek R Lovley

Anaerobic activation of benzene is expected to represent a novel biochemistry of environmental significance. Therefore, benzene metabolism was investigated in Geobacter metallireducens, the only genetically tractable organism known to anaerobically degrade benzene. Trace amounts (<0.5 μM) of phenol accumulated in cultures of Geobacter metallireducens anaerobically oxidizing benzene to carbon di...

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