12/22/2023 0 Comments Particle playground ae start lifeAs plastics degrade in the environment, they generate potentially toxic modified products. 2020), and certain plastics have been shown to leach over 80% of their chemicals into water, highlighting the potential for human exposure ( Zimmermann et al. Plastic products have also been found to contain a cocktail of more than 40,000 chemicals ( Zimmermann et al. ( 2019) © 2019 American Chemical Society.Įmerging evidence indicates that humans are ubiquitously exposed to NMPs ( Koelmans et al. Figure and definitions of size categories (nanoplastics: 1 to < 1000 nm microplastics: 1 to < 1000 μ m ) adapted with permission from Hartmann et al. Major characteristics of nano- and microplastic particles. In this commentary, we describe why the special vulnerability of children and pregnant women to these exposures must be considered when framing research questions and designing methods for plastics research, as well as when developing policy around plastics.įigure 1. Because of their complex physical and chemical properties (e.g., polymer, size, shape, charge) ( Figure 1), NMPs may negatively affect human health, yet these exposures and their health implications remain either largely uninvestigated or unknown ( Koelmans et al. ![]() ![]() 2019), particularly nano- and microplastics (NMPs). Globally, humans are in close and frequent contact with plastics and their degradation products ( Vianello et al.
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