Microplastics in the atmosphere and cryosphere in the circumpolar North: a case for multicompartment monitoring

• Published in: Arctic Science
• Main Authors: Bonnie M. Hamilton, Liisa Jantunen, Melanie Bergmann, Katrin Vorkamp, Julian Aherne, Kerstin Magnusson, Dorte Herzke, Maria Granberg, Ingeborg G. Hallanger, Alessio Gomiero, Ilka Peeken
• Format: Article in Journal/Newspaper
• Language: English; French
• Published: Canadian Science Publishing 2022
• Subjects: air; Arctic; atmospheric deposition; sea-ice; ice cores; atmospheric transport; Environmental sciences; GE1-350; Environmental engineering; TA170-171; Sea ice
• Online Access: https://doi.org/10.1139/as-2021-0054; https://doaj.org/article/032f8409ed934391b90807dc716ea027

The atmosphere and cryosphere have recently garnered considerable attention due to their role in transporting microplastics to and within the Arctic, and between freshwater, marine, and terrestrial environments. While investigating either in isolation provides valuable insight on the fate of microplastics in the Arctic, monitoring both provides a more holistic view. Nonetheless, despite the recent scientific interest, fundamental knowledge on microplastic abundance and consistent monitoring efforts are lacking for these compartments. Here, we build upon the work of the Arctic Monitoring and Assessment Programme's Monitoring Guidelines for Litter and Microplastic to provide a roadmap for multicompartment monitoring of the atmosphere and cryosphere to support our understanding of the sources, pathways, and sinks of plastic pollution across the Arctic. Overall, we recommend the use of existing standard techniques for ice and atmospheric sampling and to build upon existing monitoring efforts in the Arctic to obtain a more comprehensive pan-Arctic view of microplastic pollution in these two compartments.