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Assessment of potential ecological risk for microplastic particles
Summary
Researchers applied an ecological risk assessment framework to evaluate the hazard posed by microplastic particles across multiple environmental compartments, using species sensitivity distributions and environmental concentration data. The assessment highlighted specific particle types and size ranges that present the greatest ecological risk.
Plastic pollution caused by the indiscriminate spread of disposable plastic products is emerging as an urgent problem for the global environment and economy. Microplastic (MP) pollution has spurred a wide range of concerns due to its ubiquity and potential hazards to humans and ecosystems, yet studies on MP abundance, distribution, and ecological impacts are insufficient. In particular, a study of environmental risk assessment for MP has many difficulties in investigating on-site exposure levels due to limitations in analysis equipment. Consequently, Therefore, this risk assessment requires the SimpleBox4Nano model that can estimate exposure concentration (or predict environmental concentrations (PECs)) according to the size of particles considering the amount of emission. Herein, the model is included in the European Commission's regulatory framework for the registration, evaluation, authorization and restriction of chemicals (REACH) and forms the basis for current guidelines for predicting regional environmental background concentrations. In this study, we introduced the SimpleBox4Nano model and performed the potential risk assessment for MP of various sizes. Polymer hazard index (PHI), pollution load index (PLI) and potential ecological risk index (PERI) were used. Also see: https://micro2024.sciencesconf.org/559325/document