@misc{hildebrandt_spatial_distribution_2022, author={Hildebrandt, L., El Gareb, F., Zimmermann, T., Klein, O., Kerstan, A., Emeis, K., Pröfrock, D.}, title={Spatial distribution of microplastics in the tropical Indian Ocean based on laser direct infrared imaging and microwave-assisted matrix digestion}, year={2022}, howpublished = {journal article}, doi = {https://doi.org/10.1016/j.envpol.2022.119547}, abstract = {The mean microplastic concentration of the analyzed samples was 50 ± 30 particles/fibers m−3 (1 SD, n = 21). Number concentrations ranged from 8 to 132 particles/fibers m−3 (20–300 μm). The most abundant polymer clusters were acrylates/polyurethane/varnish (49%), polyethylene terephthalate (26%), polypropylene (8%), polyethylene (4%) and ethylene-vinyl acetate (4%). 96% of the microplastic particles had a diameter <100 μm. Though inter-study comparison is difficult, the investigated area exhibits a high contamination with particulate plastics compared to other open ocean regions. A distinct spatial trend was observed with an increasing share of the size class 20–50 μm from east to west.}, note = {Online available at: \url{https://doi.org/10.1016/j.envpol.2022.119547} (DOI). Hildebrandt, L.; El Gareb, F.; Zimmermann, T.; Klein, O.; Kerstan, A.; Emeis, K.; Pröfrock, D.: Spatial distribution of microplastics in the tropical Indian Ocean based on laser direct infrared imaging and microwave-assisted matrix digestion. Environmental Pollution. 2022. vol. 307, 119547. DOI: 10.1016/j.envpol.2022.119547}}