فرشید قزبانی شهنا
[ 1 ] - ارزیابی کمی ریسک مواجهه شغلی با ترکیبات آلی فرار در صنایع شیمیایی وابسته به نفت
چکیده زمینه و هدف: مواجهه‌ی فردی با ترکیبات آلی فرار، می‌تواند اثرات سوئی بر سلامت در محدوده‌ی اثرات غیر سرطانزا تا سرطانزا ایجادکند. هدف از مطالعه‌ی حاضر، ارزیابی کمّی ریسک مواجهه‌ی شغلی با ترکیبات آلی فرار در صنایع شیمیایی وابسته به نفت می‌باشد. مواد و روش‌ها: دراین مطالعه مقطعی با استفاده از متد استاندارد2549و1501NIOSH نمونه‌برداری وآنالیز هیدرو کربن‌ها، در صنایع شیمیایی وابسته به نفت ان...
[ 2 ] - Assessment of Extremely Low Frequency (ELF) Electric and Magnetic Fields in Hamedan High Electrical Power Stations and their Effects on Workers
Introduction: Public and occupational exposure to extremely low frequency (ELF) electric and magnetic fields induced by electrical equipment is a significant issue in the environment and at the workplace due to their potential health effects on public health. The purpose of this study was assessment of the electric and magnetic fields intensities and determination of mental and psychological ef...
[ 3 ] - حذف بخارات اتیل بنزن با استفاده از نانوکامپوزیت MnO2/Al2O3/Fe2O3پوشش شده بر روی بستر زئولیت HZSM-5
Background and aims: Ethylbenzene (EB) is one of the most hazardous carcinogenic VOCs that is used or produced in various industrial, so it is important to reduce its use and control its emissions. The aim of this study is determine the effectiveness of MnO2/Al2O3/Fe2O3 nanocomposite coated on HZSM-5 Zeolite for the removal of ethylbenzene vapors. Methods: Nanocomposite coated on HZSM-5 zeolit...
[ 4 ] - مقایسه ارزیابی ریسک بهداشتی هیدروکربن های سرطانزا در هوای محیط کار در یک صنعت وابسته به نفت به روش سازمان حفاظت محیط زیست امریکا EPA) ) و روش دپارتمان منابع انسانی مالزی
Background and aims: A human health risk assessment is the process to estimate the nature and probability of adverse health effects in humans who may be exposed to chemicals in contaminated workplaces, now or in the future. The objective of this study is to compare risk assessment of carcinogen hydrocarbons of Environmental Protection Agency (EPA) method with the method of Department of...
[ 5 ] - اثر تلفیقی پلاسمای غیرحرارتی و نانوکمپوزیت کربن فعال-اکسید روی بر حذف هیدروکربن های آلی فرار هوا
Background and aims: Regarding high emission rates of volatile organic compounds in the atmosphere by different industrial and transportation sources and their adverse effects on human health and the environment, the need to remove these chemicals from gas streams using new technologies with low energy consumption and high efficiency has been more evident. In this study, the catalytic effect of...
[ 6 ] - پالایش بخارات کلروفرم با استفاده از راکتور پلاسمای غیر حرارتی جدید (سال 1394)
Background and aims: One of the innovative technologies for air pollution control is non-thermal plasma. The dielectric barrier discharge reactor is one of the reactors that applied in non thermal plasma technology for air polluation control. In dielectric barrier discharge reactor, the distance between the electrodes for electric discharge is low and led to increasing space velocity of the pol...
[ 7 ] - بررسی مواجهه ی شغلی با فرمالدئید در آرایشگاه های بانوان در شهرهای کرمانشاه و همدان
Background and aims: Formaldehyde (FA) is a colorless toxic gas used as a disinfectant and preservative and known as a carcinogen and strong irritant. Due to its germicidal, preservative and fixative properties, formaldehyde or other chemicals that potentially produce formaldehyde, are used in some cosmetics. OSHA has warned about hair dresser’s exposure to FA higher than thre...
[ 8 ] - کنترل غبار منتشره با تلفیق تهویه صنعتی و مه پاش به‌عنوان راهکار مؤثر و اقتصادی در یک شرکت معدنی
Background and aims: Dust emission is one of the main health and environmental problems during the crushing, screening and conveying process in mining company. The goal of this study was designing, implementation and evaluation of industrial ventilation and combination with a water spray for control the airborne particles as well as economic analysis on crushing unit of a mining compa...
[ 9 ] - بررسی کارایی اسکرابر ونچوری در جمع‌آوری گردوغبار هوابرد Fe2O3 در یک واحد آهن‌سازی
Background and aims: Steel industry plays an important role in air pollution and particulate emissions released to the environment. The Venturi scrubber is one of the most important scrubbers and components at local exhaust ventilation which has a lot of application to control of the contaminants emissions to the atmosphere in the steel industry. On the other hand, the efficiency of this equipm...
[ 10 ] - کاربرد نانولوله کربنی چند دیواره سنتز شده با تکنیک سل – ژل برای تعیین تتراکلرید کربن درهوا با روش ریز استخراج فاز جامد
Background and aims: Conventional Methods for determination of volatile organic pollutants in the air are based on solvent extraction. Solid-phase microextraction (SPME) has been popular as an environmentally friendly technique to extract a very wide range of analytes. SPME fibers have some drawbacks that can be overcome by use of sol-gel nanosorbents. Therefore the aim of this study has been t...
[ 11 ] - مقایسه فصلی میزان انتشار ترکیبات آلی فرار در صنایع شیمیایی وابسته به نفت طی سال های 1391 و 1392
Background and aims: volatile organic compounds VOCs are emitted from a variety of sources and production may be impacted harmful to the health, welfare and human performance. No doubt the first step to controlling pollutants are measured and analyzed, because without full knowledge of the quality and quantity of pollutants compared with the limits and the possibilities of their control would ...
[ 12 ] - کاربرد روش تله سوزنی (Needle Trap) در تعیین مقدار ترکیبات ارگانوهالوژن در هوا
Background and aim s : The correct assessment of volatile organic compounds is a main stage of their control's action plan. Needle trap device (NTD) as a novel technique with all advantages of microextraction methods, is an inexpensive and rapid technique for survey of air pollution agents. In this study the performance of this technique was investigated for sampling and analysis of organohal...
[ 13 ] - بیورآکتور امولسیونی : فن آوری نوین در تصفیه زیستی ترکیبات آلی فرار هوا
Introduction & Objective: Biological treatment is a new established technology for the air pollutants. This technology can be an alternative for physical and chemical treatment methods. Among bioreators, the Bioactive Foamed Emulsion Reactor (BFER) is a new alternative that has not the problems of the conventional ones. In this reactor bed clogging in the conventional bioreactor was resolved ...
[ 14 ] - ارزیابی کیفی عملکرد هودهای شیمیایی آزمایشگاه‌های دانشگاه علوم پزشکی
Introduction: The scientific and research laboratories at universities of medical sciences use a variety of chemical and biological materials. Various people, including the laboratory staff, students, and faculty members, are exposed to these materials, and various respiratory and dermatological symptoms may occur in these people. The purpose of this study is to evaluate the use and control of ...
[ 15 ] - ارزیابی میزان اثربخشی سیستم تهویه دمشی-مکشی در کنترل سرب، روی و اسیدسولفوریک منتشره از وان های الکترولیز روی در یک صنعت تولید روی
Introduction: Air pollution is one of the hazardous factors on human health and the environment. In the zinc production industry, because of process nature and using electrolysis pools, the amount of production and diffusion of some of the harmful pollutants such as acidic vapors is exceedingly high. This study aimed to assess the effectiveness of push-pull ventilation system implemented for co...
[ 16 ] - طراحی و توسعه یک تله سوزنی مبتنی بر جاذب PDMS جهت ریزاستخراج تولوئن و متیل اتیل کتون از نمونه های آبی به روش فضای فوقانی دینامیک
Introduction: Due to the widespread use of toxic chemicals in most workplaces that can lead to toxic effects on human, various chemical extraction technique have been defined for analysis these toxic substances in air, water and biological samples. The purpose of this research is extraction of toluene and methyl ethyl ketone from aquatic samples with needle trap device and one co...
[ 17 ] - حذف بخار جیوه از هوای مطبهای دندان‌پزشکی با استفاده از یک سامانه پالایش گر مبتنی بر نانوذرات نقره
Background & objective: Mercury is a toxic and bio-accumulative pollutant that has adverse effects on environmental and human health. There have been a number of attempts to regulate mercury emissions tothe atmosphere. Silver nanoparticles are a number of materials that have highly potential to absorb mercury and formation of mercury amalgam.The aim of this study is removal of mercury va...
[ 18 ] - ارایه روشی کاربردی برای ارزیابی پارامترهای طراحی هودهای سیستم تهویه مکنده موضعی در یک واحد آهن‌سازی
Introduction: Efficiency of hoods for local exhaust ventilation system is influenced by hood geometry, its situation relative to the process and the air volume exhausted by it. The aim of this study was to present a simple and practical method based on the standards for assessment of potential problems of ventilation system in a steel making company. Material and Method: In this cross-sect...
[ 19 ] - ارزیابی عملکرد سیستم تهویه مکنده موضعی در کنترل گردوغبار اکسید آهن (II) در یک واحد آهن سازی
Introduction: Adherence to the design values and ventilation standards (VS) after installing and also maintaining continuous work of ventilation system with maximum performance throughout its life are amongst the reasons of ventilation systems monitoring. Therefore, the aim of this study was to evaluate performance of local exhaust ventilation system for control of dust by measuring the operati...
[ 20 ] - بررسی آلاینده های هوای منتشره از واحد پخت ضایعات کشتارگاه صنعتی طیور و طراحی سیستم تهویه موضعی و پالایشگر مناسب جهت کنترل و تصفیه آلاینده‌ها
Background and Objectives: Emission of volatile organic compounds and unpleasant smell are the important characteristics of the rendering plant, causing disturbance for the workers and nearby residents. In order to prevent the spread of air pollutants and to provide favorable environment, application of treatment technologies is essential. Materials and Methods: In this study, in order to selec...
[ 21 ] - بررسی عملکرد الکتروسیکلون در جمع آوری ذرات هوابرد زیر یک میکرومتر سیلیس
Background and Objectives: Cyclone is one of the most utilized dust collectors for airborne particles control. It separates particles from airflow by centrifugal force. However, it is not effective in collecting very fine particles smaller than 10 μm in diameter. The aim of this study was to assess the performance of charging particles on cyclone efficiency in collecting particles smaller than ...
[ 22 ] - Design and evaluation of local ventilation system and packed bed scrubber and control of hydrogen sulfide emitted from the dryer lines of a Pulp Industry
Abstract Introduction: The diffusion of pollutants Methyl Mercaptan, Hydrogen Sulfide, Dimethyl sulfide and Dimethyl disulfide from dryer machines of pulp industries will cause to smell annoyance and health effects on the employees and neighbors . This study aimed to determine the effectiveness of local ventilation system and packed bed scrubber implemented for controlling the emitted hydrogen...
[ 23 ] - Development of a Method Based on the Needle-trap Microextraction Filled with Hydroxyapatite and Polyaniline Nanocomposite for Determination of Volatile Organic Compounds in the Air
In this study, the efficiency of packed needle trap with hydroxyapatite/polyaniline (NTD-HAP/PA) nanocomposite was assessed in air sampling and analysis of a hazardous group of VOCs such as benzene, toluene, ethylbenzene and xylenes. The effects of main parameters, including desorption temperature and time, were evaluated on the performance and carryover of prepared NTDs. Moreover, the repeatab...
[ 24 ] - Application of Arc-GIS for zoning of occupational exposure levels to respirable crystalline silica in crushing factories
Introduction: The silica crushing is a process based on crushing, screening and, granulation of various types of silica rocks. The inhalation of silica dust leads to silicosis by causing irreversible fibrosis in lung tissue. The crystalline silica is classified as a human carcinogenic (group I) by the IARC. Azandarian region is one of the largest silica production units in Iran with 40 silica c...
[ 25 ] - Catalytic removal of nitrogen dioxide in the air stream by nickel and nickel- platinum supported multiwall carbon nanotube.
Introduction Nitrogen oxides as one of the most dangerous environmental pollutant, have harmful effects on the health of people in the workplace. Today, the catalytic oxidation of nitrogen oxides is a highly efficient method for removing of this gases that has been dedicated part of researches. The aim of study was to investigate the removal efficiency of nitrogen dioxide (NO2) by nickel and...
[ 26 ] - Investigation of the effects of using ribs on cyclone’s vortex finder on its performance
Introduction: Generally, geometrical parameters of the cyclone have a profound effect on determining its performance. The air outlet (Vortex Finder) as one of the cyclone’s components has a significant impact on the cyclone’s internal flow pattern, pressure drop and even dust removal efficiency. Material and Methods: Two different air outlets were designed in order to be easily installed and r...
[ 27 ] - Investigating the effect of different disinfection methods on the efficiency, pressure drop and Figure of merit of medical masks
Background and aim:This study was conducted with the aim of determining the effect of different disinfection methods on the efficiency,pressure drop and quality of medical masks used by medical staff. Also,the filtration efficiency of medical masks was investigated in the present study Materials and methods:In the present study, 4 models of medical masks used by the treatment staff were sele...
نویسندگان همکار
Zahra Tarin 17