CHARACTERIZATION AND MORPHOLOGICAL ANALYSIS OF AEROSOLS IN TEHRAN TRAFFIC ZONE
Introduction: The identification of effective factors in air pollution is necessary to plan for decreasing the impacts. Tehran is one of the most polluted cities in Iran and the world, which is constantly affected by air pollution. The traffic zone is attributed to most crowded places in Tehran with some limitations for vehicles. In this study, samples were taken from the limited traffic zone in Tehran.
Materials and methods: The sampling was done with high volume sampler for a period of 6 -24 h. Preliminary SEM/EDS measurements were performed on some of the samples to get elemental information on individual aerosol particles. The aerosols were collected by fiberglass filters and using a sampling flow of 1.5 m3 / min.
Results: The results show that the largest source of atmospheric particles in Tehran is due to the combustion of fuel released by mobile resources such as transportation and also, stationary resources such as industrial and factories as the second source of atmospheric particles production. Also, mineral particles with irregular shape were observed in coarse particle which may be mainly derived from natural sources such as soil dust, resuspension of dust from road, crust and some other anthropogenic activities such as construction and vehicles.
Conclusions: These particles morphology and chemical composition, illustrate an abundance of natural elements within the zone. However, some of the elements presented are directly related to human activities, and are interested by the public health and environmental perspectives.
Jalali M, Bahrami H, Darvishi bolurani A. Investigation of the relationship between climatic and terrestrial factors with the occurrence of dust storms using MODIS satellite images (Case study: Khuzestan province). The first national desert conference. Tehran, Center for International Research, University of Tehran. 2012.
Zou XK, Zhai PM. Relationship between vegetation coverage and spring dust storms over northern China. Journal of Geophysical Research: Atmospheres. 2004; 16: 109(D3).
Superczynski SD, Christopher SA. Exploring land use and land cover effects on air quality in Central Alabama using GIS and remote sensing. Remote sensing. 2011; 25: 3(12):2552-67.
Verma N, Satsangi A, Lakhani A, Kumari KM. Low molecular weight monocarboxylic acids in PM2.5 and PM10: Quantification, seasonal variation and source apportionment. Aerosol and Air Quality Research. 2017 Feb 1;17(2):485-98.
Phalen RF. The particulate air pollution controversy: A case study and lessons learned. Springer Science & Business Media; 2002, 40.
Cheremisinoff NP, Rosenfeld PE. Handbook of pollution prevention and cleaner production vol. 2: best practices in the wood and paper industries. William Andrew; 2009, 200.
Buseck PR and Schwartz SE, Tropospheric Aerosols. In: Turekian, K.K. and Holland, H.D., Eds., Treatise on Geochemistry , Vol. 4, Elsevier Science Ltd. 2003; 4: 91-142.
World Health Organization (WHO). Health Effects of Particulate Matter. Regional Office for Europe, Copenhagen. 2013.
Schleicher NJ. Chemical, Physical and Mineralogical Properties of Atmospheric Particulate Matter in the Megacity Beijing. KIT Scientific Publishing; 2012.
Givehchi R, Arhami M, Tajrishy M. Contribution of the Middle Eastern dust source areas to PM10 levels in urban receptors: Case study of Tehran, Iran. Atmospheric environment. 2013;1:75:287-95.
Air Quality Control Company, subsidiary of Tehran Municipality. (2017). Period of March 2016 – March 2017. QM96/02l01 (U)/1. p. 256
Oroji, B. Risk assessment radioactive aerosols with determination residence times in the atmosphere′ s Tehran, Iran. Theses Ph.D. (2018); p. 183.
Amini H, Taghavi - Shahri SM, Henderson SB, Naddafi K, Nabizadeh R, Yunesian M. Land use regression models to estimate the annual and seasonal spatial variability of sulfur dioxide and particulate matter in Tehran, Iran. Science of the Total Environment. 2014;1:488:343-53.
Amini H, Taghavi-Shahri SM, Henderson SB, Hosseini V, Hassankhany H, Naderi M, Ahadi S, Schindler C, Künzli N, Yunesian M. Annual and seasonal spatial models for nitrogen oxides in Tehran, Iran. Scientific reports. 2016;13:6:32970.
Sandrini S, Pinxteren Dv, Giulianelli L, Herrmann H, Poulain L, Facchini MC, et al. Size-resolved aerosol composition at an urban and a rural site in the Po Valley in summertime: implications for secondary aerosol formation. Atmospheric Chemistry and Physics. 2016;16(17):10879-97.
Amato F, Bedogni M, Padoan E, Querol X, Ealo M, Rivas I. Characterization of Road Dust Emissions in Milan: Impact of Vehicle Fleet Speed. Aerosol and Air Quality Research. 2017;17(10):2438-49.
Von Bismarck-Osten C, Birmili W, Ketzel M, Weber S. Statistical modelling of aerosol particle number size distributions in urban and rural environments–A multi-site study. Urban Climate. 2015 Mar 1;11:51-66.
Badarinath K, Kharol SK, Reddy R, Rama Gopal K, Narasimhulu K, Siva Sankara Reddy L, et al. Black carbon aerosol mass concentration variation in urban and rural environments of India—a case study. Atmospheric science letters. 2009;10(1):29-33.
Copyright (c) 2018 Journal of Air Pollution and Health
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.