نتایج جستجو برای: 60 nm the btx compounds including benzene
تعداد نتایج: 16158991 فیلتر نتایج به سال:
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...
Các hydrocarbon thơm như benzene, toluene và xylene (BTX) là thành phần chính của xăng dung môi được sử dụng rộng rãi trong công nghiệp. BTX cũng xem những hợp chất ô nhiễm phổ biến đối với nước mặt ngầm. Dòng vi khuẩn Rhodococcus sp. XL6.2 phân lập từ hệ thống xử lý thải có khả năng hủy hiệu quả. Kết quả nghiên cứu cho thấy dòng hỗn ở các nồng độ khác nhau, đó 0,1% (v/v) tối ưu sự tăng trưởng ...
Benzene, toluene và xylene (BTX) là thành phần chính của xăng dung môi được sử dụng rộng rãi trong công nghiệp. Do có khả năng hòa tan nước nên BTX cũng xem một những hợp chất gây ô nhiễm phổ biến. Dòng vi khuẩn Rhodococcus sp. XL6.2 phân lập từ hệ thống xử lý thải phòng thí nghiệm hủy hiệu quả BTX. Nghiên cứu này thực hiện nhằm tìm mang phù để tồn trữ làm cơ sở cho việc sản xuất chế phẩm sinh ...
in this research,the authors conducted a study comparing two groups of male and female english language learners studying in a elt institute,in terms of their performance on their achievement test including listening comprehension,vocabulary,grammar,and reading comprehension and found no significant difference between the group except in listening comprehension part of the test in which the f...
This study utilized the Community Multiscale Air Quality model to simulate the spatial distribution of benzene, toluene, and xylene (BTX) concentrations from large national industrial complexes (IC) located in the Ulsan metropolitan region (UMR). Through controlling pollutant emissions from major IC, this study performed a quantitative analysis of the influence of pollutant emissions on BTX con...
Introduction: Workers in steel manufacturing companies are extensively exposed to the volatile organic compounds (VOCs). Considering the health effects of these compounds, the purpose of this study was to determine occupational exposure to the BTEX compounds and also evaluation of carcinogenic risk due to benzene and non- carcinogenic risk for BTEX compounds in a steel industry. Material and...
Due to its excellent properties, polydimethylsiloxane (PDMS) foam has recently attracted significant academic and industrial attention. In this study, a facile green method was developed for PDMS synthesis. The prepared by using the gas foaming with eco-friendly materials, namely NaHCO3 as blowing agent acetic acid catalyst. By changing ratios of reactants curing temperature, foams varying prop...
The local evanescent array coupled (LEAC) chip-scale sensor is demonstrated for rapid detection of benzene, toluene and xylenes (BTX) in water at sub-ppm concentrations with minimal sample preparation. BTX analytes are found to concentrate into the chip’s Teflon AF upper cladding sensing region, causing an increase in refractive index, which modulates evanescent coupling into the chip’s integra...
A comprehensive evaluation of the adverse health effects of human exposures to BTX from service station emissions was carried out using BTX exposure data from the scientific literature. The data was grouped into different scenarios based on activity, location and occupation and plotted as Cumulative Probability Distributions (CPD) plots. Health risk was evaluated for each scenario using the Haz...
background: gasoline station workers are exposed to volatile organic compounds such as benzene, toluene, ethylbenzene and xylene (btex). objectives: to determine the level of exposure to btex compounds among gasoline station workers and measure the roadside concentrations of these compounds in the inner and outer areas of bangkok, thailand. methods: 49 workers at 6 gasoline stations in the inne...
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