Microplastics are contaminating air, water, soils, both in populated megacities and in remote areas. Here we review analytical methodologies and occurrence of suspended airborne microplastics in Asia. Forty-three studies on suspended airborne microplastics were examined in thirteen countries across Asia. Abundance of suspended airborne microplastics ranged from 0.93 to 8,865 particles/m³ in indoor locations, 0.017 to 18,880 particles/m³ in outdoor areas, and 0.39 to 19 particles per 100 m³ in the oceanic environment. Suspended airborne microplastics mostly had the shape of fibers and fragments. Polyethylene, polypropylene, polyethylene terephthalate, polyvinyl chloride, and polystyrene polymers were commonly found. The size of plastic particles ranged from 0.43 to 9,555 µm, and the strategies used in sampling and analytical methods can influence the size of suspended airborne microplastics. Occurrence of suspended airborne microplastics in Asia demonstrates a critical pollution issue in the region.

微塑料正在污染人口稠密的大城市和偏远地区的空气、水和土壤。在这里，我们回顾了亚洲悬浮空气微塑料的分析方法和发生情况。在亚洲 13 个国家进行了 43 项关于悬浮空气微塑料的研究。室内悬浮空气中微塑料的丰度范围为0.93至8,865个颗粒/m ³ ，室外区域为0.017至18,880个颗粒/m ³ ，海洋环境中每100m ³为0.39至19个颗粒。悬浮在空气中的微塑料大多呈纤维状和碎片状。常见的是聚乙烯、聚丙烯、聚对苯二甲酸乙二醇酯、聚氯乙烯和聚苯乙烯聚合物。塑料颗粒的尺寸范围为 0.43 至 9,555 µm，采样和分析方法中使用的策略会影响悬浮空气中微塑料的尺寸。亚洲空气中悬浮微塑料的出现表明该地区存在严重的污染问题。