The present study focused on the determination of ²¹⁰Po and ²¹⁰Pb natural radionuclides in the ground surface air in urban areas in Kuwait over a year. Five high volume air sampler (HVAS) systems equipped with five-stage cascade impactors were utilized to collect air samples on weekly basis. Glass fiber air filters with different fraction sizes have been assembled and prepared for ²¹⁰Pb, ²¹⁰Po, and uranium analysis. ²¹⁰Pb was determined by ultra-low background gamma spectrometry system, while ²¹⁰Po and uranium isotopes were determined by radiochemical separation and alpha spectrometry. The average ²¹⁰Po and ²¹⁰Pb activity concentrations were 0.77 ± 0.07 and 1.1 ± 0.04 mBq/m³, respectively, while the uranium concentration was below the detection limit (2 μBq/m³). The activity ratio of ²¹⁰Po/²¹⁰Pb was close to unity, reflecting potential access of anthropogenic sources such as local resuspension dust, long-range transport of aerosols by northwesterly winds, oil industries, local/regional power generating stations, and sea salt aerosols.

本研究的重点是在一年多的时间里测定科威特城市地区地表空气中的²¹⁰ Po 和²¹⁰ Pb 天然放射性核素。五个配备五级级联冲击器的大容量空气采样器 (HVAS) 系统用于每周收集空气样本。已组装并准备好用于²¹⁰ Pb、²¹⁰ Po 和铀分析的玻璃纤维空气过滤器。²¹⁰ Pb采用超低本底伽马能谱系统测定，²¹⁰ Po和铀同位素采用放射化学分离法和α能谱法测定。平均²¹⁰宝和²¹⁰Pb 活性浓度分别为 0.77 ± 0.07 和 1.1 ± 0.04 mBq/m ³，而铀浓度低于检测限 (2 μBq/m ³ )。²¹⁰ Po/ ²¹⁰ Pb的活度比接近统一，反映了人为来源的潜在通路，如局部再悬浮粉尘、西北风远距离输送气溶胶、石油工业、局地/区域发电站和海盐气溶胶.