Small-sized plastic debris (micro- and mesoplastics) are emerging pollutants and widely detected in aquatic environments. However, micro- and mesoplastics pollution research with regard to landfills is limited. In this study, the occurrence, characteristics, and possible release of micro- and mesoplastic waste from the Galuga landfill leachate to the aquatic environment were studied. Micro- and mesoplastics were identified in all surface water samples from leachate influent and effluent of Galuga landfills. The average daily release to the aquatic environment was estimated at 80,640 ± 604.80 microplastic and 618,240 ± 1905.45 mesoplastic particles, respectively. The amount of microplastic increased three-fold and nine-fold for mesoplastics after input from the leachate drain. Micro- and mesoplastic main chemical compositions were polyethylene, polypropylene, polystyrene, polyethylene terephthalate, polyester, and cellophane. This study implied that the leachate may cause micro and mesoplastic contamination to the aquatic environment. The results raised the knowledge of small-sized plastic debris in aquatic environments.

小型塑料碎片（微塑料和中塑料）是新兴的污染物，在水生环境中被广泛发现。但是，关于垃圾填埋场的微塑料和中塑料污染的研究是有限的。在这项研究中，研究了从Galuga垃圾填埋场渗滤液向水生环境排放的微量和中塑性废物的发生，特征和可能释放。在来自Galuga垃圾填埋场的渗滤液入水和出水的所有地表水样品中鉴定出微塑料和中塑料。估计每天平均释放到水生环境中的微塑性颗粒为80,640±604.80和618,240±1905.45。从渗滤液排出后，中塑性塑料的微塑性数量增加了三倍和九倍。微塑性和中塑性的主要化学成分是聚乙烯，聚丙烯，聚苯乙烯，聚对苯二甲酸乙二酯，聚酯和玻璃纸。这项研究暗示渗滤液可能对水生环境造成微观和中塑性污染。结果提高了在水生环境中小型塑料碎片的知识。