Mahmoud M. Abu-Allaban This email address is being protected from spambots. You need JavaScript enabled to view it.1, Salahuddin M. Jaber1, Aiman Soleiman2, Hasan Almarayeh2

1 Department of Water Management and Environment, Faculty of Natural Resources and Environment, Hashemite University, Zarqa, Jordan
2 Environment Commissionerate, Aqaba Special Economic Zone Authority, Aqaba, Jordan

Received: February 17, 2020
Revised: May 15, 2020
Accepted: May 21, 2020

 Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

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Abu-Allaban, M.M., Jaber, S.M., Soleiman, A. and Almarayeh, H. (2020). Quantifying Emissions of PM10 Generated by the Implosion of Concrete Grain Silos. Aerosol Air Qual. Res.


  • PM10 exceeded baseline values by 26-times due to implosion of concrete grain silos.
  • Post-implosion PM10 values decayed logarithmically with distance.
  • Water spraying suppressed dust generation at the implosion site.
  • Emission rate of PM10 from implosion was found to be 17 ± 2 mg m2 s–1.
  • Mixing height during the implosion was found to be 613 ± 72 m.


This study quantified the effect of imploding old concrete grain silos in Aqaba, Jordan, on the eastern side of the Gulf of Aqaba, an arid region, on air quality by measuring the PM10 concentrations before and after the implosion at four monitoring locations. The implosion of the silos forms part of a comprehensive plan to relocate and upgrade the Port of Aqaba, which is situated on the coast of the Red Sea, with the goal of freeing space for development and improving the infrastructure in the heart of the city. The demolition, which occurred at 11:00 a.m. (local time) on 13 January 2019, generated a massive cloud of dust that was transported to nearby areas. To characterize these emissions, descriptive statistics, graphical methods, inverse distance weighting interpolation, decision trees constructed with recursive partitioning, the Gaussian dispersion model, the modified box model, and regression analysis were applied. The PM10 concentrations were in compliance with the Jordanian 24-h standard of 120 µg m–3 prior to the implosion but substantially increased (although still varied by distance from the demolition site) at all four stations afterward, with the maximum values (259–587 µg m–3) exceeding the pre-implosion ones by as much as 26 times. However, these high concentrations were short-lived, and the majority of the stations returned to background levels within 30–33 hours. According to our calculations on the implosion, the PM10 emission rate was 17 ± 2 mg m–2 s–1, which is equivalent to 215 ± 22 kg silo–1, and the air mixing height was 613 ± 72 m, or approximately eight times the height of the silos.

Keywords: PM10; Demolition; Implosion; Emission rate; Air pollution; Aqaba.

Aerosol Air Qual. Res. 20 :-.{field 40} 

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