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. 2021 Jul 27;12:100110. doi: 10.1016/j.wroa.2021.100110

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© 2021 The Author

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Fig 4 — Density ranges of common plastics (LDPE = low density polyethylene; HDPE = high density polyethylene; PP = polypropylene; ABS = acrylonitrile butadiene styrene; PET = polyethylene terephthalate; PVC = polyvinyl chloride) and dried paint formulations. Annotated are the density ranges of seawater and solutions of ZnCl₂ commonly employed to isolate microplastics from sediment. Sources of information: Powell and Zinn (1983); Ruble (2002); Brockenbrough (2009); Cobb (2009); Fontana and Grass (2010); PPG Aerospace (2014); Soroldoni et al. (2018); SpecialChem (2021); Zhejiang Brother Guidepost Paint (2021).