ali jafari
Nutrition Health Research Center, Department of Environment Health, School of Health and Nutrition, Lorestan University of Medical Sciences, Khorramabad, Iran
[ 1 ] - Indoor Radon Measurement in Dwellings of Khorramabad City, Iran
Introduction: Exposure to indoor radon increases the risk of lung cancer. This study examined the level of indoor radon in dwellings of Khorramabad city, by using passive alpha-track detector (CR-39) during winter of 2016. Materials and Methods: In the present study, we detected the concentration of indoor radon in 56 dwellings. A passive sampling instrument (alpha-track detector with CR-39 pol...
[ 2 ] - Health impact assessment of exposure to PM10 in Ilam city using Air Q software
Air pollution is a major environmental issue in the world that can be harmful for human health. The aim of this study was to determine the health impacts of particulate matter with an aerodynamic diameter ≤10μm (PM10) in Ilam in 2013 and 2014. The air pollution data were obtained from the Ilam Department of Environmental Protection. The data were analyzed by Excel software, and...
[ 3 ] - Improved removal of Trinitrotoluene (TNT) from contaminated soil by inducing aerobic process: kinetic and chemical byproducts
This study describes the biological degradation of TNT by using induced aeration. Three plastic reactors were used. In each reactor 3 kg of soil were used. In order to increase the porosity of the soil, sawdust was added to soil. Textile wastewater treatment plant sludge was also added to soil. TNT at the concentrations of 1000 mg/kg of soil was added thereafter. Rhamnolipid biosurfactant at th...
[ 4 ] - Assessment of DMFT and its influencing factors in guidance school students in Pirnshahr city, Iran
DMFT index is one of the best dental epidemiological indices, which represent the oral health status of the population and has been accepted by authorities and international organizations such as the World Health Organization. The aim of this study was to assess the permanent teeth DMFT index in guidance school students to determine the influencing factors such as brushing, tea and sugar consum...
[ 5 ] - Quantification of health effects related to SO2 and NO2 pollutants by using Air quality model
In the past few decades, the results of epidemiological studies have shown that there is a significant relationship between human health and air pollution. The aim of this study was to quantify the health effects, the estimated number of cases of death, cardiovascular and respiratory deaths attributed to NO2 and SO2 pollutants in Bukan city by Air Quality software. Bukan city has a population o...
[ 6 ] - Fabrication of ultrathin graphene oxide-coated membrane with hydrophilic properties for arsenate removal from water
Terms and conditions of current drinking water quality standards, including reducing the maximum arsenic concentration from 50 μgl-1 to 10 μgl-1 and predicted stricter standards in future, reveals the necessity for development of new technologies. This study aimed to prepare and evaluate a new nanocomposite membrane using graphene oxide (GO) thin layer to remove arsenic (v) from water. To fabri...
[ 7 ] - The study of an azo dye removal from liquid medium by modified clay
In this batch study, montmorillonite was modified by a cationic surfactant [hexadecyltrimethylammonium bromide (HDTMA-MMT)] and used as sorbent to remove bromocresol green (BCG) from aqueous solutions. The effect of several factors such as surfactant loading rate onto the clay, contact time, pH, adsorbent dosage, dye concentration, and ion strength were investigated on the sorption. The equilib...
[ 8 ] - Evaluation of corrosion and scaling potential of drinking water supply sources of Marivan villages, Iran
Corrosion and scaling in drinking water sources can lead to economic and health damages. These processes produce by-products in distribution systems, reduce chemical water quality, and are the cause of health issues among consumers. The aim of this study was to evaluate the corrosion and scaling potential of water supply sources of Marivan villages, Iran. In total, 106 water samples were collec...
[ 9 ] - Adsorption of 4-chlorophenol from aqueous solution using activated carbon synthesized from aloe vera green wastes
In this study, activated carbon synthesized from Aloe vera green wastes was used as a sorbent to remove 4-chlorophenol (4-CP) from aqueous solutions. The influence of contact time (0-100 minutes), pH (2-8), adsorbent dosage (1-9 g/l), and initial 4-CP concentration (10-60 mg/l) in batch system was investigated on the sorption. The sorbent was specified using scanning electron microscopy (SEM). ...
[ 10 ] - بررسی راهکارهای بهینه سازی مصرف انرژی درایستگاه های پمپاژآب آشامیدنی روستاهای بخش مرکزی شهرستان خرم آباد در سال 1396
Abstract This study was conducted to reduce energy consumption and consumed electricity costs at drinking water pumping stations in villages located at the central part of Khorramabad city in 2017. In this study, 10 wells and pumping stations from a total of 48 wells and pumping stations in Khorramabad were selected randomly. The energy consumption, energy intensity, the effect of the capacito...
[ 11 ] - Nitrate Removal from Aqueous Solutions Using Granular Activated Carbon Modified with Iron Nanoparticles (RESEARCH NOTE)
Nitrate contamination of water resources and the growing concentration of nitrate endanger human health and the environment and considering its reduction strategies from water resources is important. The aim of this study was to investigate the possibility of removal of nitrate from aqueous solutions using granular activated carbon from grape wood coated with iron nanoparticles. The results sho...
[ 12 ] - Methylene blue removal from aqueous solutions by electrocoagulation in continuous flow reactor: Modeling and optimization of operating parameters
Introduction The application and increasingly produce of colorants, particularly, synthetic dyes, are one of the main environmental and health concerns especially in industrialized countries. If this type of dyes is discharged into the environment without any control, many problems will arise. Therefore, it is necessary to remove the dyes from aqueous solutions using appropriate methods. The p...
[ 13 ] - Determination of malachite green and leucomalachite green residues in rainbow trout in Sanandaj City
Background and Aim: Malachite green (MG) is an organic compound which his used as a dye in textile industry. This compound is applied incorrectly and illegally in aquiculture as an antimicrobial agent. This compound has mutagenic and carcinogenic effects. Materials and Methods: In this study we determined the concentrations of MG and leucomalachite green (LMG) in the muscle tissue of 90 rainbow...
[ 14 ] - Estimation of gas emission from municipal solid waste landfill in Kuhdasht city using LandGEM software
Background: Large amount of solid waste is annually produced in Kuhdasht city. These waste materials are decomposed by anaerobic microorganisms after burying in disposal site and produce large amounts of gases (mainly methane and carbon dioxide). This study aimed to estimate the gas emission from solid waste disposal of Kuhdasht city using a tool known as LandGEM software. Materials and Method...
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