**Contents**


Characteristics, Toxic Effects, and Analytical Methods of Microplastics in the Atmosphere Reprinted from: *Nanomaterials* **2021**, *11*, 2747, doi:10.3390/nano11102747 .............. **129** **Maxine Swee-Li Yee, Ling-Wei Hii, Chin King Looi, Wei-Meng Lim, Shew-Fung Wong, Yih-Yih Kok, et al.**

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 **149**

Impact of Microplastics and Nanoplastics on Human Health Reprintedfrom:*Nanomaterials***2021**,*11*,496, doi:10.3390/nano11020496
