This dataset contains a range of measurements associated with the degradation of Polylactic acid (PLA)-cellulose based teabags, buried in soil. Degradation measurements were calculated following a 7-month burial period from November 2021 to June 2022. Variables measured include: mass change, mass change of PLA, crystallinity change, and pyrolysis gas chromatography-Mass spectroscopy (GCMS) data for each teabag type. This research is part of the BIO-PLASTIC-RISK project, funded by Natural Environment Research Council through the grants NE/V007556/1 and NE/V007246/1. Full details about this dataset can be found at https://doi.org/10.5285/24eddfa6-c97e-4a27-a84f-063ab3981058

This dataset presents concentration of microplastics in snow from remote Antarctic camps: Union Glacier, Schanz Glacier and the South Pole. Refined automated FTIR techniques enabled interrogation of microplastics (including fibres) to a lower detection limit of 11 micrometers in Antarctic snow for the first time. Microplastics were pervasive (73 - 3099 MP L/1). The majority (95 percent) measured less than 50 micrometers, indicating that previous microplastic reports in Antarctica may be underestimated, due to analytical restrictions. Plastic polymer composition and concentration did not vary significantly between sites, with dominant polymers being polyamide (PA), polyethylene terephthalate (PET), polyethylene (PE) and synthetic rubber. Results indicate that even in the earth's most remote regions, humans are leaving a plastic legacy in the snow, illustrating the importance of remote, cryospheric regions as critical study sites for determining temporal fluxes in microplastic pollution. Funding: All fieldwork was supported and financed by Airbnb.

This dataset contains acute and chronic ecotoxicology measurements of Eisenia fetida earthworms exposed to different types and concentrations of bio-based textile-derived microfibres. Acute test (72 hours) measured earthworm mortality across a range of fibre concentrations, following OECD TG 207 standard guidelines. Chronic tests (following OECD TG 222 guidelines), using one fibre concentration were conducted over 28-days and measured mortality, growth, reproductive output (number of egg cocoons and juveniles), oxidative stress and elemental composition of earthworms. Data were collected in order to establish lethal thresholds and sub-lethal effects of different textiles microfibres (bio-based and conventional). This research is part of the BIO-PLASTIC-RISK project, funded by Natural Environment Research Council through the grants NE/V007556/1 and NE/V007246/1. Full details about this nonGeographicDataset can be found at https://doi.org/10.5285/577486c2-c6e1-4588-957d-69c1a3d85628