Asle Ravnås

Mr. Asle Ravnås


Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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22 April 2024 in Sustainability
Verified
Journal Article
Open access
PDF file
LZLukas Zeilerbauer
Lukas Zeilerbauer
JLJohannes Lindorfer
Johannes Lindorfer
PFPauline Fuchs
Pauline Fuchs
MKMelanie Knöbl
Melanie Knöbl
ARAsle Ravnås
Asle Ravnås
JFJoerg Fischer
Joerg Fischer
Recently, the European Commission announced their intention to restrict intentionally added microplastics to reduce the amount emitted by 0.5 million tons per year. Findings on microplastics indicate toxic behavior for biota, yet many mechanisms remain in the dark. Microplastics also pose a challenge in life cycle assessment as methods are actively being developed. Considering this recent decision, an anticipatory life cycle assessment was performed, comparing the impacts of natural grass pitches with artificial grass pitches using bio-based infill materials as well as polymeric ones made from recycled and virgin materials. The aim was to confirm if microplastics are in fact a considerable environmental hazard when compared to more traditional impacts. The microplastics’ impact was modeled after the MarILCA group’s work on the new midpoint of physical effects on biota. The results showed that the influence of the microplastics remains negligible when using the method provided. For most midpoint categories, the wood-based infill showed the best results, often closely tied with the infill made from recycled rubber from tires. A sensitivity analysis revealed that neither the physical effects on biota nor the greenhouse gas emissions from degradation in a marine environment are deciding factors when assessing the endpoint of ecosystem damage.