²¹⁰Po, being a highly radiotoxic isotope, could contribute to significant inhalation dose to humans. This study establishes the first set of atmospheric ²¹⁰Po data in aerosol samples collected across Kuwait. The primary focus of this study is to investigate spatio-temporal variability of atmospheric ²¹⁰Po and assess its sources, including anthropogenic contributions. Measurements of ²¹⁰Po in aerosols collected over a period of 23 months (January 2018–November 2019) from three different locations, i.e., a remote area (120 km) north of Kuwait City, Kuwait city and an industrial site (60 km from Kuwait City center). Specific activities of ²¹⁰Po were determined in 3 different size fractions (0.39–2.5 μm, 2.5–10 μm and ≥10 μm) and the highest activity was observed in the fine fraction (PM_{0.39- 2.5}) across all sampling stations during both the summer and winter seasons. The highest activities in all the size fractions were measured downwind of the Industrial site that houses oil refineries, cement factory and some other industries including a Power and Desalination Plant. In terms of temporal variations, higher summertime activities were observed across the spatial domain. Longer residence time of atmospheric ²²²Rn-produced ²¹⁰Pb resulting in lower scavenging of atmospheric ²¹⁰Pb, due to very little precipitation in summer, will result in higher atmospheric ²¹⁰Po.

²¹⁰ Po是一种剧毒的放射性同位素，可能会导致人体大量吸入。这项研究建立了在科威特各地收集的气溶胶样品中的第一组大气²¹⁰ Po数据。这项研究的主要重点是调查大气²¹⁰ Po的时空变化并评估其来源，包括人为贡献。在三个不同的地点（即科威特市以北的偏远地区（120公里），工业区（距科威特60公里））从三个不同地点收集的，在23个月（2018年1月至2019年11月）期间23个月内收集到的²¹⁰ Po气溶胶的测量值市中心）。具体活动²¹⁰在3个不同的大小部分（0.39–2.5μm，2.5–10μm和≥10μm）中确定了Po，在夏季和冬季，所有采样站的细碎部分（PM _{0.39- 2.5}）观察到最高的活性。在所有规模部分中，最高活动是在工业现场的顺风处进行的，该工业现场设有炼油厂，水泥厂和一些其他行业，包括电力和海水淡化厂。就时间变化而言，在整个空间范围内观察到较高的夏季活动。大气²²² Rn产生的²¹⁰ Pb的停留时间较长，导致大气²¹⁰ Pb的清除率较低，这是由于夏季降水很少，这将导致较高的大气²¹⁰宝