We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Development of simplified characterization factors for the assessment of expanded polystyrene and tire wear microplastic emissions applied in a food container life cycle assessment
Summary
Researchers developed simplified characterization factors for assessing the environmental impacts of expanded polystyrene and tire wear microplastic emissions in life cycle assessment. The study modeled fate mechanisms for microplastics in the marine environment and applied the factors to a food container case study. The findings provide a methodology for incorporating microplastic pollution impacts into standard environmental assessment frameworks.
Abstract To date, life cycle assessment (LCA) does not include a methodology for assessing the impacts of plastic litter leaked to the environment. This limits the applicability of LCA as a tool to compare the potential impacts of single‐use plastics and their alternatives on ecosystem quality and human health. As a contribution to tackle this issue, this work proposes simplified fate and characterization factors (CFs) for modeling the impacts of two types of microplastics—expanded polystyrene and tire and road wear particles—in the marine environment. In terms of fate mechanisms, this work explores different sedimentation, degradation, and fragmentation rate scenarios, based on literature values and expert estimates. Whereas the fate of expanded polystyrene is sensitive to the different fragmentation, degradation, and sedimentation scenarios, for tire and road wear particles the fate is primarily sensitive to sedimentation. The fate factors are integrated into CFs using an existing exposure and effect factor for microplastics in aquatic environments. Since the CFs of the two studied microplastics show important differences, these results reveal the need for developing polymer‐specific CFs. Finally, the CFs are tested in a case study of on‐the‐go food containers (one single‐use plastic, two compostable alternatives, and one reusable plate). Depending on the fate scenario, plastic litter impacts range from barely noticeable to more than doubling the total potential damage to ecosystem quality, compared to no plastic litter impact assessment. The high uncertainty of the results encourages further research on modeling microplastic fate and impacts in detail.
Sign in to start a discussion.
More Papers Like This
Methodology to address potential impacts of plastic emissions in life cycle assessment
Researchers proposed a new method for including the environmental impact of plastic emissions in life cycle assessments, which currently tend to make plastic products appear less harmful than alternatives. The approach introduces characterization factors based on how long different plastics persist in the environment. The study suggests that accounting for plastic pollution in these assessments could significantly change how the environmental footprint of plastic products is evaluated.
Updated and comprehensive characterization factors for microplastics in life cycle assessment considering multimedia fate modelling
Researchers updated and expanded characterization factors for microplastics in life cycle assessment, allowing better quantification of plastic pollution impacts on ecosystem quality and human health. The new factors cover a broader range of particle types and environmental compartments than previous versions.
Regionalized characterization factors for microplastic emissions in life cycle assessment considering multimedia fate modelling
This study developed regionalized characterization factors for microplastic emissions in life cycle assessment (LCA), using multimedia fate modeling to account for how plastics distribute across marine, freshwater, and terrestrial compartments. The new factors improve the accuracy of plastic product environmental impact assessments, which had previously underestimated ecosystem quality impacts.
Regionalized Characterization Factors for Microplastic Emissions in Life Cycle Assessment Considering Multimedia Fate Modelling
Researchers developed location-specific impact factors for microplastic emissions to be used in life cycle assessments, accounting for how plastics move between air, water, soil, and sediment. Their model covers nine world regions and shows that the environmental impact of microplastic emissions varies significantly depending on where they are released. The study helps fill a gap in current environmental impact tools, which tend to overlook plastic pollution when comparing products.
Updated and comprehensive characterization factors for microplastics in life cycle assessment considering multimedia fate modelling
Researchers updated life cycle assessment characterization factors for microplastics, developing comprehensive factors that account for ecosystem quality, human health, and socioeconomic impacts across multiple environmental compartments. The updated factors enable LCA practitioners to more accurately compare the plastic pollution impacts of different product systems and waste management strategies.