High-volume air samples (approximately 1800 m³) were collected from three residential areas in Kuwait with different surrounding activities (Al-Jahra, Rumaithiya, and Ahmadi) using high-volume air samplers connected to a three-stage cascade impactor. Sampling duration was three days, and the samples were collected weekly over a period of one year. Low background gamma spectrometry and chemical separation methods were used to determine the concentrations of ⁷Be,⁴⁰K, ²¹⁰Pb, and ²¹⁰Po in three particle sizes: 0.41 to 0.73 μm, 0.73 to 2.4 μm, and 2.4 to 10.2 μm. Results indicated that most of the activity was concentrated on the fine particle size fractions, except for ⁴⁰K, which suggests the influence of local dust sources. The activity concentration values of ²¹⁰Pb, ⁷Be, and ⁴⁰K were consistent across all cities, while the ²¹⁰Po activity concentration was lower in the Al-Jahra area. Also, the ratios of ²¹⁰Po/²¹⁰Pb activity concentrations differ across locations; they were higher in the Ahmadi and Rumaithiya areas compared to Al-Jahra.

1. C. Papastefanou, “Radioactive aerosols,” in Radioactivity in the Environment, vol. 12, 1st ed., Amsterdam, Netherlands: Elsevier, 2008, ch. 2, pp. 11 – 58.
   Retrieved from: https://library.lol/main/757BA853D79F113AD227B363D06B2DA3
   Retrieved on: Apr. 15, 2023
2. Compendium of dose coefficients based on ICRP publication 60, vol. 41, ICRP Publication no. 119, ICRP, Ottawa, Canada, 2012, pp. 1 – 130.
   Retrieved from: https://www.icrp.org/publication.asp?id=ICRP%20Publication%20119
   Retrieved on: Apr. 15, 2023
3. B. Jancsek-Turóczi, A. Hoffer, I. Nyírő-Kósa, A. Gelencsér, “Sampling and characterization of resuspended and respirable road dust,” J. Aerosol Sci., vol. 65, pp. 69 – 76, Nov. 2013.
   DOI: 10.1016/j.jaerosci.2013.07.006
4. A. Aba, A. M. Al-Dousari, A. Ismaeel, “Depositional characteristics of ⁷Be and ²¹⁰Pb in Kuwaiti dust,” J. Radioanal. Nucl. Chem., vol. 307, no. 1, pp. 15 – 23, Jan. 2016.
   DOI: 10.1007/s10967-015-4129-y
5. J. C. Chow et al., “Descriptive analysis of PM_{2. 5}and PM ₁₀ at regionally representative locations during SJVAQS/AUSPEX,” Atmos. Environ., vol. 30, no. 12, pp. 2079 – 2112, Jun. 1996.
   DOI: 10.1016/1352-2310(95)00402-5
6. A. Ismaeel et al., “Activity size distributions of radioactive airborne particles in an arid environment: a case study of Kuwait,” Environ. Sci. Pollut. Res., vol. 27, no. 26, pp. 33032 – 33041, Sep. 2020.
   DOI: 10.1007/s11356-020-09367-y
   PMid: 32529611
7. M. A. Alolayan, K. W. Brown, J. S. Evans, W. S. Bouhamra, P. Koutrakis, “Source apportionment of fine particles in Kuwait City,”Sci. Total Environ., vol. 448, pp. 14 – 25, Mar. 2013.
   DOI: 10.1016/j.scitotenv.2012.11.090
   PMid: 23270730
8. J. M. AL-Awadhi, A. A. Al-Shuaibi, “Dust fallout in Kuwait City: deposition and characterization,” Sci. Total Environ., vol. 461-462, pp. 139 – 148, Sep. 2013.
   DOI: 10.1016/j.scitotenv.2013.03.052
   PMid: 23722090
9. A. AL-Hemoud et al., “Exposure levels of air pollution (PM2.5) and associated health risk in Kuwait,” Environ. Res., vol. 179, pt. A, 108730, Dec. 2019.
   DOI: 10.1016/j.envres.2019.108730
   PMid: 31550597
10. M. Behbehani, F. P. Carvalho, S. Uddin, N. Habibi, “Enhanced polonium concentrations in aerosols from the gulf oil producing region and the role of microorganisms,” Int. J. Environ. Res. Public Health, vol. 18, no. 24, 13309, Dec. 2021.
    DOI: 10.3390/ijerph182413309
    PMid: 34948917
    PMCid: PMC8705287
11. A. Ismaeel, A. Aba, A. Al-Boloushi, H. Al-Shammari, O. Al-Boloushi, “Radiological risk assessment of particulate matters in urban areas in Kuwait,” Arab. J. Geosci., vol. 14, 2176, Oct. 2021.
    DOI: 10.1007/s12517-021-08483-4
12. A. Al-Boloushi, A. Ismaeel, A. Aba, H. Al-Shammari, O. Alboloushi, “Atmospheric concentrations of ²¹⁰Po and ²¹⁰ Pb in Urban Area in Kuwait,” Arab. J. Geosci., vol. 14, 1995, Sep. 2021.
    DOI: 10.1007/s12517-021-08371-x
13. A. Aba et al., “Atmospheric residence times and excess of unsupported 210Po in aerosol samples from the Kuwait bay-northern gulf,” Chemosphere, vol. 261, 127690, Dec. 2020.
    DOI: 10.1016/j.chemosphere.2020.127690
    PMid: 32736243
14. H. Vanmarcke, “UNSCEAR 2000: Sources of ionizing radiation,” Annales de L`association Belge de Radioprotection, vol. 27, no. 2, pp. 41 – 65, 2002.
    Retrieved from: https://bvsabr.be/js/tinymce/plugins/moxiemanager/data/files/annals/Vol%2027-2.PDF
    Retrieved on: Apr. 15, 2023