Tehran University of Medical Sciences Journal of Air Pollution and Health 2476-3071 1 3 2016 09 04 153 160 EN Samaneh Shahsavani Department of Environmental Health Engineering, School of Health, Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran Mansooreh Dehghani Research Center for Health Sciences, Department of Environmental Health, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran Mohammad Hoseini Department of Environmental Health, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran Mohammad Fararoei Department of Epidemiology, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran 2016 05 17 2016 07 31 Introduction: Benzo(a)pyren is an indicator of carcinogenic PAHs and enters the body through the respiratory system, gastrointestinal tract, and skin. This compound causes lung, kidney, and skin, cancers. In this study, the concentrations of PM10 and 16 PAHs compounds were measured in the particle phase in an urban and a suburban area of Shiraz and the carcinogenic risk of respiratory exposure to PAHs were assessed. Materials and methods: A total of 60 samples were collected from Paramont and Sadra during spring 2015 using SKC sampling pump (for 24 h at a flow rate of 10 L/min). Dichloromethane/methanol mixture was used as a solvent. 16 PAHs were identificated using gas chromatography with mass spectrometry. Results: The mean (±SD) concentrations of PM10 were 62.73±23.83 and 60.88±31.03 μg/m3 in the urban (Paramont) and suburban (Sadra) stations, respectively, which exceeded the PM10 emission limit value of the Europe Commission (50 μg/m3). Also, the mean concentrations (±SD) of the total PM10-bound PAHs were 19.28±7.48 ng/m3 and 17.80±9.17 ng/m3 in Paramont and Sadra stations, respectively. Besides, the BaPeq was 1.307 in Paramont and 0.814 in Sadra station. Incremental Lifetime Cancer Risk (ILCR) values for children below 10 years of age demonstrated the risk of cancer for this age group in both areas. Conclusions: this study presented the value of PM10 and PAHs concentration in two sampling sites. The PM10 values were higher than Europe Commission and the PAHs concentrations could increase the potential risk of cancer among the children below 10 years old in both sampling areas. https://japh.tums.ac.ir/index.php/japh/article/view/33 https://japh.tums.ac.ir/index.php/japh/article/download/33/34

Tehran University of Medical Sciences Journal of Air Pollution and Health 2476-3071 1 3 2016 09 04 219 226 EN Morteza Khafaie Environmental Technologies Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran AND Department of Public Health, Faculty of Health, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran Ajay Ojha Technogreen Environmental Solutions, Pune, Maharashtra, India Sundeep S. Salvi Chest Research Foundation (CRF), Pune, Maharashtra, India Chittaranjan S. Yajnik King Edward Memorial Hospital Research Center, Pune, Maharashtra, India 2016 06 18 2016 08 21 Number of scientific studies linking possible effects of air pollution on health are increasing. However, the disparity in the effect estimated from different studies and recognizing important determinants of these diversity are essential . We have explained the types and sources of air pollution, and the common terms in epidemiological studies of air pollution. Then we reviewed the study design and critically evaluated methodological approach to estimate association between air pollution and health with deep insight into dispersion model. The quality of exposure measurement is critical determinant in an environmental epidemiology study. However, the available exposure data and feasible methods for its collection are often the determinant of the design to be used. Beside vast development in this field, epidemiological approaches to find out the risks of exposure to air pollutants is still challenging. https://japh.tums.ac.ir/index.php/japh/article/view/50 https://japh.tums.ac.ir/index.php/japh/article/download/50/32

Tehran University of Medical Sciences Journal of Air Pollution and Health 2476-3071 1 3 2016 09 04 161 170 EN Majid Kermani Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran AND Associate Professor of Environmental Health Engineering Department, School of Public Health, Iran University of Medical Sciences, Tehran, Iran Anahita Dehghani Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran AND MSc of Environmental Health Engineering, School of Public Health, Urmia University of Medical Sciences, Urmia, Iran Mahdi Farzadkia Research Center for Environmental Health Technology, Iran University of Medical Sciences, Tehran, Iran AND Professor of Environmental Health Engineering Department, School of Public Health, Iran University of Medical Sciences, Tehran, Iran Farshad Bahrami Asl PhD student of Environmental Health Engineering Department, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran Dariush Zeinalzadeh MSc of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran 2016 06 11 2016 07 31 Introduction: Recently contact with bioaerosols has been presented as an important problem which endangers human being’s health. In this study bioaerosol concentration was measured in wastewater treatment (WWTP) units in west of Tehran. Materials and methods: Passive sampling was carried out around three process and operational units, in 100 m from last unit of wastewater treatment plant and in administrative building. In total 440 samples were collected. The transport culture medium used for bacterial samples was the tryptic soy agar, and for fungal samples, it was dextrose agar. Sampling was carried out according to the sampling calendar of Environmental Protection Agency (EPA) in 2013 for 1 h every 6 days and in the plates of 9 cm. Results:The results showed that aerobic digester with an average of 3303 CFU/Plate had the greatest effect on emission of bacterial bioaerosols. In addition grit chamber with an average of 586.3 CFU/Plate had a highest impact on fungal emission. Among the bacteria, Bacillus spp. Staphylococcus spp. and Micrococcus spp. were dominant. The highest emission of bacterial aerosol is in July and the lowest is in March. Furthermore, fungi such as Cladosporium spp. Penicillium spp. and Alternaria spp. were the dominant types in the wastewater treatment plant. The highest emission of fungal aerosols is in March and the lowest emission is in July. Conclusions: According to the results, operational and processing units of WWTP influence pollution load and dispersion of bioaerosols. Therefore, appropriate environmental health management in WWTP could be one of the important factors reducing dispersion of bioaerosols. https://japh.tums.ac.ir/index.php/japh/article/view/48 https://japh.tums.ac.ir/index.php/japh/article/download/48/26

Tehran University of Medical Sciences Journal of Air Pollution and Health 2476-3071 1 3 2016 09 04 171 180 EN Amirreza Talaiekhozani Department of Civil and Environmental Engineering, Jami Institute of Technology, Isfahan, Iran Mohammad Reza Talaei Department of Chemical Engineering, Isfahan University, Isfahan, Iran Mohamad Ali Fulazzaky Institute of Environmental and Water Resources Management, Water Research Alliance, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor Bahru, Malaysia Hossin Nemat Bakhsh M.Sc Student of Chemical Engineering, Jami Institute of Technology, Isfahan, Iran 2016 03 05 2016 07 31 Introduction: Formaldehyde is a toxic, carcinogen, mutagen and teratogen compound that is widely released into the atmosphere worldwide. The toxicity effect of formaldehyde on microorganisms is a serious obstacle on the path of using biological treatment methods. The main objective of this study is to evaluate the effect of air velocity on the efficiency of a Biotrickling Filter Reactor (BTFR) for removal of formaldehyde from an air stream. Materials and methods: A BTFR and Bioscience Laboratory Respirometer were employed for continuous and batch experiments, respectively. Three gas flow rates including 90, 291 and 1512 L/h were used to find out the effect of velocity on the formaldehyde removal efficiency of the BTFR. Monod model was modified to be capable of predicting the BTFR cases having very high formaldehyde removal efficiency. Results: The results showed that for the gas flow rates of 90, 291 and 1512 L/h in BTFR, formaldehyde removal efficiency of 95, 97 and 99% were achieved, respectively. These results showed that higher air flow velocity lead to higher removal of formaldehyde from air in a BTFR. A very slow formaldehyde removal was observed during batch experiment where the gas velocity is set equal zero. Conclusions: This study demonstrated that the mass transfer in gas phase is an important step in formaldehyde treatment in a BTFR. Very slow formaldehyde removal in the batch system which can be ascribed to the very low mass transfer rate in gas phase confirms the fact that this rate is a controlling step in overall removal rate in BTFR. https://japh.tums.ac.ir/index.php/japh/article/view/29 https://japh.tums.ac.ir/index.php/japh/article/download/29/27

Tehran University of Medical Sciences Journal of Air Pollution and Health 2476-3071 1 3 2016 09 04 181 190 EN Akbar Gholampour Department of Environmental Health Engineering, School of Health, Tabriz University of Medical Sciences, Tabriz, Iran AND Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran Ramin Nabizadeh Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran AND Department of Environmental Health Engineering, School of Health, Tehran University of Medical Sciences, Tehran, Iran Mohammad Sadegh Hassanvand Center for Air Pollution Research (CAPR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran Sasan Faridi Department of Environmental Health Engineering, School of Health, Tehran University of Medical Sciences, Tehran, Iran Amir Hossein Mahvi Department of Environmental Health Engineering, School of Health, Tehran University of Medical Sciences, Tehran, Iran AND Center for Solid Waste Research (CSWR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran 2016 06 26 2016 07 31 Introduction: Polycyclic aromatic hydrocarbons are among the main pollutants in the urban and industrial atmosphere. An investigation on variation of PAHs in the urban and suburban atmosphere of Tabriz, Iran was conducted in this study. Materials and methods: TSP and PM10 (particulate matter with aerodynamic diameter <10μm) samples were collected at two sites between September 2013 to July 2014. PAHs were analyzed with GC–MS. Results: The concentrations of the total PAHs in TSP and PM10 were 47.87±17.28 and 36.69±6.71 ng/m3 in the urban site and 91.88±35.65 and 77.2±22.24 ng/m3 in the suburban sampling site, respectively. 4-5 ring PAHs (Chr, BaA, BghiA, Flu, Nap, and Phen) were the abundant PAHs compounds, which accounted for 75-80% of total PAHs in urban and 85-88% of total PAHs in suburban sampling sites. The ratio of carcinogenic PAHs (BaA, Chr, BbF, BkF, BaP, DahA and Ind) to ΣPAHs respectively ranged from 0.51-0.58 and 0.81-0.85 in urban and suburban sampling sites. Conclusions: Potential sources of PAHs were identified by using the molecular diagnostic ratios between PAHs. The obtained diagnostic ratios of Anth / (Anth + Phen) and total LMW/ total HMW suggest that pyrogenic sources such as gasoline and diesel vehicles are the major sources of PAHs in the study area. https://japh.tums.ac.ir/index.php/japh/article/view/57 https://japh.tums.ac.ir/index.php/japh/article/download/57/33

Tehran University of Medical Sciences Journal of Air Pollution and Health 2476-3071 1 3 2016 09 04 191 204 EN Amirreza Talaiekhozani Civil Engineering Department, Jami Institute of Technology, Isfahan, Iran Ali Nasiri PhD Student of Environmental Engineering, Postgraduate School of Islamic Azad University Branch of Bushehr, Bushehr, Iran 2016 03 03 2016 08 02 Introduction: Under the influence of existing microorganisms in soil, the landfilled municipal solid waste, would produce and release high quantities of carbon dioxide, methane and non-methane organic compounds into the atmosphere in anaerobic conditions. The aim of this study was to estimate the amount volume of produced gasses in the landfill located at city of Jahrom. Materials and methods: To conduct this research, the primary data including waste composition, waste density, waste production capitation, the weight of the annual produced waste were collected using experimentations and calculations. These data were then used in LandGEM for the purpose of landfill gases volume estimation. The Screen view was then used for modeling of pollutants dispersion into atmosphere in 15 km radius around the landfill. Results: Studies suggest that the waste generation in city of Jahrom is 313.35 g/person.d. The climax of carbon dioxide and methane production in this landfill in 2028 was equal to 10570000 m3/year. Estimation shows that by recycling the obtained methane in this landfill, it is possible to generate 8375 MW of energy by 2016. It is also indicated that the concentration of produced pollutants in the landfill is calculable in 15 km radius. Conclusions: The obtained results from this study could be used to determine the role of Iran in global emission of greenhouse gasses and be considered for the Iranian energy production planning’s. https://japh.tums.ac.ir/index.php/japh/article/view/28 https://japh.tums.ac.ir/index.php/japh/article/download/28/29

Tehran University of Medical Sciences Journal of Air Pollution and Health 2476-3071 1 3 2016 09 04 205 214 EN Sana Shokri M.Sc. Student of Occupational Health, School of Health, Qazvin University of Medical Sciences, Qazvin, Iran Ahmad Nikpey Associate Professor of Occupational Health, School of Health, Qazvin University of Medical Sciences, Qazvin, Iran Ali Safari Varyani Associate Professor of Occupational Health, School of Health, Qazvin University of Medical Sciences, Qazvin, Iran 2016 06 24 gular use of suitable respiratory masks can help control disease transmission, especially in high-risk environments such as hospitals. In summary, using respiratory masks is essential in reducing the spread of airborne viruses and improving public health. https://japh.tums.ac.ir/index.php/japh/article/view/842 https://japh.tums.ac.ir/index.php/japh/article/download/842/416

Tehran University of Medical Sciences Journal of Air Pollution and Health 2476-3071 9 4 2024 12 30 493 508 EN Naresh Kumar Atmospheric Research Laboratory, Department of Environmental Sciences, Sharda School of Basic Sciences and Research, Sharda University, Greater Noida, India Priya Ranjan Department of Environmental Sciences, Sharda School of Basic Sciences and Research, Greater Noida, India Suman . Sharda University Department of Environmental Sciences, Sharda School of Basic Sciences and Research, Greater Noida, India 2024 04 08 2025 01 06 Introduction: Air pollution is a growing concern in Greater Noida, Uttar Pradesh, where meteorological factors play a major role. As urbanization accelerates, the region has not yet thoroughly examined the impact of factors like temperature, humidity, wind direction, and speed on pollutants like Particulate Matters (PM2.5, PM10), Nitrogen dioxide (NO2), and Sulfur dioxide (SO2). Materials and methods: To explore this issue, a 12-month study (January to December 2023) was conducted to analyze the relationships between these meteorological factors and pollutant levels. In the present study, pollutant movement was tracked over time. Pearson correlation was used to correlate air pollution concentrations with weather conditions. Results: The study revealed that the average concentrations of PM10, PM2.5, and NO2 were 912.54 µg/m³, 257.42 µg/m³, and 65.98 µg/m³, respectively. In contrast, SO2 had an average concentration of 26.85 µg/m³. Conclusion: The study indicates that particulate matter and temperature are strongly negatively correlated, while wind speed shows a weak positive correlation with particulate matter. Pollution levels and relative humidity also display a negative correlation, as do particulate matter concentrations and humidity. However, gaseous pollutants exhibit little to no significant correlation with these weather conditions. https://japh.tums.ac.ir/index.php/japh/article/view/714 https://japh.tums.ac.ir/index.php/japh/article/download/714/422

Tehran University of Medical Sciences Journal of Air Pollution and Health 2476-3071 9 4 2024 12 30 509 530 Tatiana Minnikova Department of Ecology and Nature Management, Academy of Biology and Biotechnology, Southern Federal University, Rostov on Done, Russia Natalia Tsepina Department of Ecology and Nature Management, Academy of Biology and Biotechnology, Southern Federal University, Rostov on Done, Russia Sergey Kolesnikov Department of Ecology and Nature Management, Academy of Biology and Biotechnology, Southern Federal University, Rostov on Done, Russia Natalia Evstegneeva Department of Ecology and Nature Management, Academy of Biology and Biotechnology, Southern Federal University, Rostov on Done, Russia Anna Kusina Department of Ecology and