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. 2023 May 31:1–16. Online ahead of print. doi: 10.1007/s11356-023-27651-5

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© The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

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Fig. 6 — SEM analysis of Chlorella sp. biomass. A Chlorella sp. control, B Chlorella sp. treated with control mask, and C Chlorella sp. treated with a bacterial mask