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DaNa Publishes Research Spotlight on Three-Stage Model for the Formation of Micro- and Nanoplastic Particles

The German Federal Ministry of Education and Research (BMBF) project (DaNa4.0) is addressing the question of whether new advanced materials, including nanomaterials, can be harmful to humans and the environment and how humans and the environment come into contact with these materials. DaNa has published an August 2022 research spotlight on a “Three-stage model for the formation of micro- and nanoplastic particles.” The paper, “Degradation of low-density polyethylene to nanoplastic particles by accelerated weathering,” investigates how the process of decomposition due to weathering occurs and what happens to nanoplastic particles. According to DaNa, the starting point for the investigation was plastic pellets in the medium size range of 100-200 micrometers (µm), which were exposed to laboratory weathering by water and solar radiation. Researchers divided the degradation into three main stages: in stage one, the large fragments were smoothed by surface abrasion over a period of up to 17 days, and smaller fragments detached; in stage 2, after a period of at least 58 days, cracks formed on the plastic surface; and in stage 3, the cracks led to the detachment of smaller particles. DaNa states that up to 14,000 nano- and microplastic particles could form from one original particle, and the nanoplastic particles subsequently form larger agglomerates with microplastic particles. According to DaNa, environmental organisms will thus be exposed to nanoplastic and microplastic particles simultaneously. At the same time, nanoplastic particles bound to natural particles may also enter the food chain.

©2022 Bergeson & Campbell, P.C.National Law Review, Volume XII, Number 216
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About this Author

Lynn Bergeson, Campbell PC, Toxic Substances Control Act Attorney, federal insecticide lawyer, industrial biotechnology legal counsel, Food Drug Administration law
Managing Partner

Lynn L. Bergeson has earned an international reputation for her deep and expansive understanding of the Toxic Substances Control Act (TSCA), the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA), European Union Registration, Evaluation, Authorization and Restriction of Chemicals (REACH), and especially how these regulatory programs pertain to nanotechnology, industrial biotechnology, synthetic biology, and other emerging transformative technologies. Her knowledge of and involvement in the policy process allows her to develop client-focused strategies whether...

202-557-3801
Carla Hutto, Bergeson Campbell PC environmental law regulatory analyst,Toxic Substances Control Act law attorney
Regulatory Analyst

Since 1996, Carla Hutton has monitored, researched, and written about regulatory and legislative issues that may potentially affect Bergeson & Campbell, P.C. (B&C®) clients. She is responsible for creating a number of monthly and quarterly regulatory updates for B&C's clients, as well as other documents, such as chemical-specific global assessments of regulatory developments and trends. She authors memoranda for B&C clients on regulatory and legislative developments, providing information that is focused, timely and applicable to client...

202-557-3809
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