@misc{hansen_quantification_and_2023, 
author={Hansen, J.,Hildebrandt, L.,Zimmermann, T.,El Gareb, F.,Fischer, E.K.,Pröfrock, D.},
title={Quantification and characterization of microplastics in surface water samples from the Northeast Atlantic Ocean using Laser Direct Infrared Imaging},
year={2023},
howpublished = {journal article},
doi = {https://doi.org/10.1016/j.marpolbul.2023.114880},
abstract = {15 filtration samples were collected at eight locations onboard the RV Sonne (cruise SO279 in 2020) from 6 m water depth using a fractionated stainless-steel filtration unit. The size fraction > 300 μm was visually examined and potential microplastic particles were analyzed by ATR-FTIR spectroscopy. The treatment of size class 20 μm < d < 300 μm was based on enzymatic-oxidative microwave-assisted “one-pot” matrix digestion in conjunction with analysis of the microplastics by time-efficient LDIR imaging.,Total number concentrations ranged from 47 to 2154 microplastic particles per m3 (average for all stations: 500 ± 700 microplastic particles m−3 (1 SD; n = 8)). In total, 20 polymer types were identified. The most common polymer types were polyethylene terephthalate (20 %) and acrylates/polyurethane/varnish (15 %). 93 % of the detected microplastics were smaller than 100 μm in length. Analysis of sample replicates indicates high spatio-temporal variations in microplastic pollution within the investigated region.},
note = {Online available at: \url{https://doi.org/10.1016/j.marpolbul.2023.114880} (DOI). Hansen, J.; Hildebrandt, L.; Zimmermann, T.; El Gareb, F.; Fischer, E.; Pröfrock, D.: Quantification and characterization of microplastics in surface water samples from the Northeast Atlantic Ocean using Laser Direct Infrared Imaging. Marine Pollution Bulletin. 2023. vol. 190, 114880. DOI: 10.1016/j.marpolbul.2023.114880}}