List of Articles polluted

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  1 - A Study of the Effects of Purkan Village Wastewater Refinery on Qualitative Parameters of Karaj River
  Faezeh Hosseini Amir hesam Hasani Amir hossein Javid Mojtaba Sayadi
  Today the River of Karaj is exposed to all kinds of pollutions and destruction of ecosystem because of thedestructive effects of Tehran, a city with millions of residents. So it is important to examine the quality of thewater of this river to collect information about t More

  Today the River of Karaj is exposed to all kinds of pollutions and destruction of ecosystem because of thedestructive effects of Tehran, a city with millions of residents. So it is important to examine the quality of thewater of this river to collect information about the current situation. The objective of this study is to find out therole of the Purkan sanitary wastewater refinery on the quality of the water of the river. In current study, sampleswere collected from four stations: into, out of, before, and after the refinery, in seasonal form, four stages.Concentration of NO3,NH3,PO4,BOD5,COD,TSS,pH indices were tested according to methods suggested bystandard methods reference. Considering the results of the samples, data analysis was done using statistics. Theresults of physical , chemical and microbial analyses of the samples show that the refinery has no good role indecreasing basic parameters such as COD, TSS and FC (specially in summer season). In many cases, theparameters were more than the limit. The water in the river has an almost fixed condition, so; entrance of thewastewater into Karaj River does not show a great negative effect. As a result, it seems necessary to make aprogram to find a solution to remove the problems. Prevention of the direct entrance of the wastewater into theriver, modification of refinery function, optimization of filteration, and the use of wastewater in artificialirrigater may help remove these problems. Manuscript profile
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  2 - A Statistical Study of Mashhad׳s Air Polluted Days
  Tahereh Soltani Amir Gandomkar Hooshmand Ataei Abbas Mofidi
  Abstract For a precise study of polluted days in terms of persistence and stability , this paper statistically studies the air pollution of Mashhad.The data related to the pollution was provided daily by environment department of Razavi Khorasan province from 2003 to 20 More

  Abstract For a precise study of polluted days in terms of persistence and stability , this paper statistically studies the air pollution of Mashhad.The data related to the pollution was provided daily by environment department of Razavi Khorasan province from 2003 to 2009. After collecting the data and specifying statistical period , the pollutants with the most impact on the air pollution of Mashhad ( carbon monoxide , nitrogen dioxide , sulfur dioxide , ozone and particulate matters ( PM10 ) were selected among these data for specifying air quality. Then , statistical analysis was made in order to specify persistence and number of the polluted days and finally , these results were obtained that the air pollution has been ranging from 2003 to 2009 with a reduction trend. In addition , during the desired period , particulate matters (PM10 ) had the maximum amount.The most polluted seasons of Mashhad are autumn and winter. In the terms of annual distribution , the year 2007 with 29 days had the maximum amount of pollution. December with 18 days has been specified as the most polluted and June the cleanest months of the year. In addition , after studying the number of polluted days with the persistence of two days and more , it was revealed that the years 2007 and 2008 were more significant in terms of persistence than the other years. Manuscript profile
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  3 - Isolation of heavy metal resistant Acidovorax sp. from agricultural soil and optimization of metal biosorption
  Maryam Ghane
  Background & Objectives: Bioremediation is the most efficient method for removal of heavy metals from contaminated soils. The aim of this study was the isolation of heavy metal resistant bacteria and optimization of removal conditions. Material & Methods: In th More

  Background & Objectives: Bioremediation is the most efficient method for removal of heavy metals from contaminated soils. The aim of this study was the isolation of heavy metal resistant bacteria and optimization of removal conditions. Material & Methods: In this cross sectional study, sampling was carried out from agricultural soils of different areas of Islamshahr. Screening of resistant strains was carried out in medium containing 1 mM of metals including cadmium, zinc, and copper. The minimum inhibitory concentration (MIC) of metals was investigated by agar dilution method. Metal removal was carried out by atomic absorption spectroscopy. Various removal parameters such as pH, initial metal concentration, as well as contact time were investigated. Identification of strains was performed based on 16S rRNA gene sequences. Results: Among all 100 bacterial isolates, BRH3 was resistant to all 3 metals. The MIC of copper, cadmium, and zinc were 3 mM, 2 mM, and 3 mM, respectively. The isolate was able to remove 32.5%, 47.0%, and 56.8% of Cu, Cd, and Zn, respectively. The maximum biosorption of zinc and cadmium were obtained 69%, and 59% at pH 6, contact time of 4 hours, and an initial metal concentration of 150 mg/L. The maximum biosorption for copper was 48% in the same condition, except for optimal pH which was 5. The isolate was called as Acidovorax sp. HM_AH 13, and was deposited as JN676128 in GenBank. Conclusion: Results showed that heavy metal resistant bacteria are present in agricultural soils, and the isolated strain could be a good candidate for heavy metal removal from polluted environment. Manuscript profile
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  4 - Bioremediation potential of indigenous gram-positive bacteria isolated from contaminated soil with polycyclic aromatic hydrocarbons
  Somayeh Scandari Mehran Hoodaji Arezo Tahmourespour Atoosa Abdollahi
  Background and Objectives: Polycyclic aromatic hydrocarbons (PAHs) were extensively spread in the environment and are regarded as one of the mutagenic and carcinogenic agents on living creatures. Among the vast variety of procedures for the elimination of contaminatio More

  Background and Objectives: Polycyclic aromatic hydrocarbons (PAHs) were extensively spread in the environment and are regarded as one of the mutagenic and carcinogenic agents on living creatures. Among the vast variety of procedures for the elimination of contamination, biological removal is capable of transmuting pollutants into innocuous and nontoxic substances using less amount of energy, chemicals and time. The study was aimed at evaluating the possibility of growth of the indigenous bacteria isolated from oil-polluted soils, in the presence of PAH compounds in the laboratory, and also identifying them by using the method of PCR. Material and Methods: Specimens of the research were isolated from environmental gasoline and oil-polluted soils from the Isfahan City refinery. Initially, the native bacteria were separated from the contaminated soil with such compounds by utilizing a basic medium containing the concentration of 12.8 mg/l in 16 PAH compounds. Then, those bacteria which were able to grow and reproduce in the presence of the compounds identified through biochemical experiments and determination of genome sequence and consequently registered as new species. Results: The results obtained in the study substantiated that approximately 13.3% of the total heterotrophic bacteria possess a degradable ability of the hydrocarbons. After the evaluation of biochemical tests and gene sequencing, it was disclosed that the isolated indigenous bacteria belonged to Bacillus licheniformis ATHE9, Bacillus mojavensis ATHE13 and a particular species of Bacillus (ATHE10). Conclusion: The results of the present research verify the importance and proficiency of the native bacteria in the terms of the elimination of PAHs pollutions in contaminated areas. Manuscript profile
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  5 - Comparing the effect of aerobic exercise in clean and polluted air on the responses of interleukin-6 and Reactive Protein-C in the active people
  Naser Rabbani Farzaneh Taghian
  10.30486/epp.2022.1965631.1000
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  6 - The Interactive effect of 12 weeks of aerobic training and the intake of multivitamin minerals supplementation on indicators of male pulmonary function in the expose of urban polluted air
  Saber Rezanejad Mehdi Kargarfard Akram Khani Rozveh
  10.30486/epp.2023.1977762.1009
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