Majid Kermani
Research Center for Environmental Health Technology AND Department of Environmental Health Engineering, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
[ 1 ] - Evaluation of organic carbon, elemental carbon, and water soluble organic carbon concentration in PM2.5 in the ambient air of Sina Hospital district, Tehran, Iran
In the present study, carbon species including organic carbon (OC), elemental carbon (EC), and water-soluble organic carbon (WSOC) concentration in PM2.5 were assessed at an urban site of Tehran, Iran during March to June 2014. The PM2.5 samples were collected using an frmOMNITM Ambient Air Sampler. Thermal gravimetric analysis (TGA) was used to analyze OC and EC. The results showed that PM2.5 ...
[ 2 ] - ارزیابی خطر فلزات سنگین موجود در ذرات معلق کوچکتر از 10 میکرون بر روی کارگران مجتمع کمپوست کهریزک تهران در زمستان 1394
Background and aims: Particles in the Breathing air composting Complex because of the diversity of waste, are Carrying dangerous chemicals compound such as metals. The aim of this study was determine the sources and health risk assessment of metals. Methods: In order to measuring the particle, frm OMNITM Ambient Air Sampler was used. Sampling in the months of February and March 2016 wa...
[ 3 ] - برآورد اثرات بهداشتی مواجهه با دو آلاینده PM2.5 و CO در هوای هشت شهر صنعتی ایران توسط مدل AirQ در سال 1390
Background and aims: according to World Health Organization estimations, 3.7 million deaths were attributable to ambient air pollution annually, that shows pollutants associated with high rate of mortality and morbidity. So, present study with aim of quantifying and estimating health impacts attributable to two pollutant of PM2.5 and CO in 8 industrial cities of Iran during 2011 by AirQ model w...
[ 4 ] - بررسی غلظت کاتیون‌ها و آنیون‌های موجود در ذرات PM2.5 در هوای آزاد منطقه دوازده شهر تهران
زمینه: در چند دهه اخیر کیفیت هوای شهرها به یکی از مهم‌ترین نگرانی‌ها تبدیل شده است، بخصوص شواهد و دلایل مستحکمی دال بر اثرات بهداشتی ذرات معلق بر جوامع شهری وجود دارد. علاوه بر غلظت ذرات معلق، بخش یونی ذرات معلق نیز از اهمیت خاصی برخوردار است، به‌طوری که برخی از مطالعات یون‌هایی مثل سولفات را عامل افزایش بیماری‌های تنفسی می‌دانند. لذا هدف این مطالعه، بررسی غلظت ذرات PM2.5 و اجزای یونی آنها شامل...
[ 5 ] - Number of total mortality, cardiovascular mortality and Chronic Obstructive Pulmonary Disease due to exposure with Nitrogen dioxide in Tehran during 2005-2014
Background & Aims: Air pollution has adverse effects on human health and cause various diseases including cardiovascular disease and respiratory. Therefore this study with aim of study of Number of total mortality, cardiovascular mortality and Chronic Obstructive Pulmonary Disease due to exposure with Nitrogen dioxide in Tehran during 2005-2014 were performed. Materials & Methods: This ...
[ 6 ] - بررسی راندمان حذف آنتی بیوتیک مترونیدازول از محلول های آبی با استفاده از فرایند ازن زنی
Background and purpose: Antibiotics have worldwide uses and they can enter water sources through different ways. Due to their different inappropriate effects, they have created a major concern in environmental control practices. Metronidazole (MTN) is an example of these antibiotics. This study was performed to investigate the efficiency of ozonation process (SOP) in MTN removal from aqueous ...
[ 7 ] - برآورد تعداد بیماری و مرگ ناشی از آلایندهNO2 در هوای پنج کلان شهر ایران در سال 1390 با استفاده از مدل AirQ
Abstract Background and purpose: Aims: Weather is one of the essential needs of human. Due to increasing of the air pollution, air pollution is one of the most important challenges of human life, in the last decades. Air pollutants, including NO2 can have significant adverse health effects on the human. Therefore, evaluation of the health effects of this pollutant is necessary for its contro...
[ 8 ] - بررسی ریخت شناسی و کانی شناختی ذرات PM2.5 در هوای منطقه دوازده شهر تهران با تکیه بر تصاویرآنالیزی EDX - SEM و آنالیزهای XRD
زمینه و هدف: در بررسی ذرات معلق هوا علاوه بر شاخصهای شیمیایی، ویژگیهای فیزیکی آنها نیز در آلودگی محیط زیست اهمیت ویژه ای دارد. لذا هدف این مطالعه، ترکیب ریخت شناسی و کانی شناختی ذرات PM2.5 در هوای منطقه دوازده شهر تهران با تکیه بر تصاویرآنالیزی EDX - SEM وآنالیزهای XRD میباشد. روش کار: در مطالعه حاضر نمونههای ذرات PM2.5 از هوای محدوده بیمارستان سینای تهران توسط frmOMNITMAmbient Air Sampler جمع...
[ 9 ] - بررسی حذف کاتکول از محلول‌های آبی به‌وسیله فرآیند اکسیداسیون با ازن و شناسایی محصولات میانی آن
Background and Objectives: Water and wastewater resources contamination, caused by the wastewater discharged from industries, is considered a major threat to human and environment health. Catechol is one of the usual phenolic compounds in wastewater of various industries such as oil and petrochemicals, plastics, resins, and etc, which is highly toxic and resistant to degradation. Therefore, the...
[ 10 ] - برآورد تعداد موارد مرگ قلبی- عروقی، سکته قلبی و بیماری مزمن انسداد ریوی ناشی از تماس با آلاینده دی اکسید گوگرد در هوای شش شهر صنعتی ایران
Background: Air pollution is one of the disadvantages of unsustainable development cause to short and long term sanitary effects without consideration of environment in addition to destruction of environment. Therefore, the present research was conducted with the purpose of quantifying and estimating of health endpoints related to SO2 pollutants in six cities (Tehran, Mashhad, Isfahan, Shiraz a...
[ 11 ] - بررسی کارایی خاکستر و پودر پسماند های گلاب گیری در حذف رنگ راکتیو قرمز 198 از فاضلاب صنایع نساجی
Abstract Background: Wastewater from factories and manufacturing centers because of various compounds, complicates the process of wastewater treatment. Among this industries, the textile, paper pulp, food, pharmacy and leather industry due to consumption of various types of chemicals are the most important importers of color pollutants to environment, which have harmful effects...
[ 12 ] - Investigating the efficiency and kinetic coefficients of nutrient removal in the subsurface artificial wetland of Yazd wastewater treatment plant
Background: Investigating the performance of naturally operated treatment plants may be due to the fact that they cannot be operated as desired, or that they should be modified to achieve good performance e.g. for nutrients removal. The advantage of kinetic coefficient determination is that the model can be adjusted to fit data and then used for analyzing alternatives to improve the process. Th...
[ 13 ] - مقایسه پنج سال کیفیت بهداشتی هوای کلانشهر تهران بر اساس شاخص کیفیت هوا (AQI)
Introduction and Purpose: Air pollution is one of the major problems of megacities that seriously threatens the health of their residents. Considering this, taking some actions such as studying pollutant variations, comparing pollutants with standards, and informing the health authorities and public paly a fundamental role in developing preventive schemes. This study was tar...
[ 14 ] - برآورد تعداد موارد مرگ ناشی از بیماری های قلبی - عروقی و تنفسی منتسب به آلاینده‌های ازن و دی اکسید نیـتروژن در هوای شهر تهران
Introduction and Purpose: Nowadays, the air quality in many major cities is one of the most important environmental problems that seriously compromises the health of residents and causes a range of acute and chronic health effects. herefore, this study was aimed to quantify and estimate the health effects related to the pollutants NO2 and O3 in metropolis of Tehran in 2014 was done ...
[ 15 ] - بررسی غلظت و توزیع قارچ های منتقله از هوا در هوای اطراف بیمارستان میلاد، سازمان انتقال خون و تصفیه خانه فاضلاب شهرک قدس تهران
Background and aims: Recently contact with bioaerosols has been presented as an important problem which endangers human being’s health. The aim of this investigation is to compare potential of separation of fungal aerosols in the air around Tehran’s Milad hospital, blood transfusion organization and waste water treatment plant of Tehran’s Shahrake Ghods. methods: this cross...
[ 16 ] - کارایی فرایند ازن‌زنی‌کاتالیزوری با نانوذرات اکسیدمنیزیم در حذف آنتی بیوتیک سفتریاکسون از محیط‌های آبی
سفتریاکسون به‌صورت گسترده در درمان بیماری‌های عفونی استفاده می‌شود. عدم تصفیه‌پذیری این آنتی‌بیوتیک در تصفیه‌خانه‌های فاضلاب بیمارستانی امکان ورود آن به محیط‌های آبی و خطر مقاوم‌سازی میکربی را در این محیط‌ها افزایش می‌دهد. هدف از این پژوهش بررسی کارایی فرایند ازن‌زنی کاتالیزوری با نانوذرات اکسید منیزیم در حذف سفتریاکسون از محیط‌های آبی بود.<str...
[ 17 ] - بررسی عملکرد و مدل‌سازی فرایند بیوفیلمی با بستر متحرک به‌منظور حذف ترکیبات مغذی از فاضلاب
در این تحقیق، کارایی فرایند بیوفیلمی با بستر متحرک به‌منظور تصفیه بیولوژیکی فاضلابهای حاوی مواد مغذی بررسی شد. فرایند مذکور به‌صورت چهار راکتور جداگانه بی‌هوازی، آنوکسیک و هوازی ساخته شد که به‌صورت سری راهبری شدند. از بیوراکتورها به‌صورت پیوسته و در بارگذاری‌های مختلف ازت و فسفر و زمان‌های ماند هیدرولیکی مختلف بهره برداری شد. در ادامه برای مدل‌سازی بیولوژیکی فرایند از سه مدل حذف آلاینده مرتبه ا...
[ 18 ] - Biological Phosphorus and Nitrogen Removal from Wastewater Using Moving Bed Biofilm Process
In this research, an experimental study to evaluate nutrient removal from synthetic wastewater by a lab-scale moving bed biofilm process was investigated. Also, kinetic analysis of the process with regard to phosphorus and nitrogen removal was studied with different mathematical models. For nutrient removal, the moving bed biofilm process was applied in series with anaerobic, anoxic and aerobic...
[ 19 ] - Investigation of Photo–Fenton–Like Process Efficiency in Diazinon Pesticide Removal from Aqueous Solutions
Diazinon pesticide and its metabolites have been identified in aquatic systems worldwide. It was related to toxicity for aquatic organisms, animals, and humans. Waters contaminated with such persistent insecticides should be treated with suitable treatment processes. In this research, Diazinon removal from aqueous solutions by the photo–Fenton–like process (UV/H2O2/Fe...
[ 20 ] - منشأیابی و ارزیابی خطر ترکیبات BTEX در مواجهه شغلی رانندگان اتوبوس های سامانه BRT شهر تهران در محدوده طرح ترافیک در نیمه دوم سال 1394
Background and aims: Recently, there is an increasing concern about the quality of breath air in cabins of public transportation system. Present study measured the driver’s occupational exposure of BTEX as the most important and toxic group of VOCs in cabins of Tehran bus rapid transit (BRT) system. Methods: NIOSH 1501 was used for sampling and analyzing. Samples were extracted by CS2 and anal...
[ 21 ] - بررسی تغییرات سمیت کاتکول طی فرایند اکسیداسیون با ازن به روش آزمون زیستی
Background and Objective: Discharge of industrial wastewater containing Catechol has adverse effects on human and environmental health. Purpose of this study was to determine the effects of catechol toxicity before and after advanced oxidation process (ozonation process) by bioassay test with Daphnia Magna. Materials and Methods: This study is an applied research in which the toxicity of cate...
[ 22 ] - بررسی کارایی فرایند اکسیداسیون فتوشیمیایی بر پایه پراکسید هیدروژن ( UV/H2O2 )در معدنی سازی 4-کلروفنل از محیط های آبی
Introduction and purpose: Chlorophenol is known as one of the toxic and dangerous pollutants in industrial wastewaters that’s a essential to it’s removal from industrial wastewaters and ground waters. The aim of this study was to investigate the efficiency of 4-Chlorophenol (4-CP) degradation using Ultraviolet/Hydrogen Peroxide process (UV/H2O2). Methods: The variables of the present study inc...
[ 23 ] - Air Born Bacteria Evaluation in The Kitchen Air of Restaurants in Babol City
Background and purpose: Bioaerosols enter into human body through various ways (inhalation, ingestion or skin absorption). The aim of this study was to investigate the type and density of the predominant bacteria in two seasons - cold and warm - in the kitchen air of restaurants. Materials and Methods: This descriptive cross-sectional study was conducted on the air of restaurants' kitchen in B...
[ 24 ] - Comparasion of Photochemical Oxidation Process Efficiency Based on Hydrogen Peroxide and Persulfate for the Removal of Paraquat from Aqueous Solutions
Introduction and purpose: One of the most important factors in the contamination of aquatic ecosystems is agricultural pesticides. Paraquat is a water-soluble and non-selective herbicide, which has adverse health effects, such as respiratory distress and even death. This study aimed to evaluate the degradability of paraquat toxins using photochemical oxidation processes based on hydrogen peroxi...
[ 25 ] - Comparing the Efficiency of UV/TiO2 and UV/O3 Processes in Degradation of Sulfonamide Antibiotics in Aquatic Solution
Background and purpose: Emerging pollutants such as antibiotics are resistant to biodegradation. The aim of this study was to compare the effect of photocatalytic and Ozonation photolysis on decomposition of Sulfonamide antibiotics (Sulfacetamide, Sulfathiazole, Sulfamethoxazole, and Sulfadiazine) in aquatic environments. Materials and methods: In this study, experiments were conducted discont...
[ 26 ] - Evaluating the Efficiency of Microwaved Sludge in the Removal of 2, 4-Dinitrophenol from Aqueous Solutions: Equilibrium and Kinetics Studies
Introduction: Nitrophenol compounds are toxic compounds found in industrial wastewaters. 2,4-dinitrophenol is the most dangerous compound among phenolic compounds. The aim of this study was to evaluate the removal of 2,4-DNP from wastewater by microwaved dried sludge adsorbent. Materials and Methods: The results of 2,4-DNP removal were discontinuously obtained by the high performance liquid ch...
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