Abstract

Abstract Particulate matters have detrimental effects on human health, environment and economic. This pollutant may emit from anthropogenic or natural sources. On global scale, main proportion of natural particulate matter release to the atmosphere because of wind erosion from arid and semi-arid regions. Recently, the amount of dust coming from Arabian countries has dramatically increased, especially dust storms that are affecting western and even central parts of Iran. This phenomenon has caused a lot of environmental problems. Dust source identification and trajectory simulation using numerical techniques are the main aims of this study. HYSPLIT (Hybrid Single Particle Lagrangian Integrated Trajectory) model dust module and trajectory simulation are utilized in this research and two case studies are investigated (in May and June 2010). The base of the HYSPLIT dust module is the PM 10 dust storm emission algorithm for desert land use. This methodology is applied to estimate hotspots and trajectories. Due to the results, dust storms started on May 17th and June 7th because of high wind shear (&gt;8.5 m/s) from the western Syrian Desert. The source region limited to 32.50 °N to 33.80 °N and 38.00 °E to 38.80 °E coordinates. Dust plumes lifted and dispersed towards the east and southeast of the sources and reached Ahvaz on May 18th and June 8th. The average of PM10 concentration in these dates reached 625 and 494 <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mfrac> <mml:mi>μg</mml:mi> <mml:msup> <mml:mi>m</mml:mi> <mml:mn>3</mml:mn> </mml:msup> </mml:mfrac> </mml:math> on Ahvaz monitoring stations, respectively. Moreover, the results gained from the model for dust motion simulation are similar to the MODIS satellite images.

Keywords

HYSPLITDust stormStormParticulatesEnvironmental scienceAtmospheric sciencesMeteorologyAridAtmosphere (unit)Aeolian processesAerosolGeographyGeologyChemistry

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Publication Info

Year
2014
Type
article
Volume
12
Issue
1
Pages
9-9
Citations
113
Access
Closed

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Khosro Ashrafi, Majid Shafiepour-Motlagh, Alireza Aslemand et al. (2014). Dust storm simulation over Iran using HYSPLIT. Journal of Environmental Health Science and Engineering , 12 (1) , 9-9. https://doi.org/10.1186/2052-336x-12-9

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DOI
10.1186/2052-336x-12-9