Algae (Raphidocelis Subcapitata) Mitigate Combined Toxicity of Microplastic and Lead on Ceriodaphnia Dubia
They not only directly impact aquatic organisms, but also indirectly impact these organisms by interacting with background toxins in the environment. Moreover, under realistic environmental conditions, algae, a natural food for aquatic organisms, may alter the toxicity pattern related to MPs. In this research, we first examined the toxicity of MPs alone, and their effect on the toxicity of lead (Pb) on Ceriodaphnia dubia (C. dubia), a model aquatic organism for toxicity survey. Then, we investigated the effect of algae on the combined toxicity of MPs and Pb. We observed that, MPs significantly increased Pb toxicity, which was related to the increase in soluble Pb concentration and the intake of Pb-loaded MPs, both of which increased the accumulation of Pb in C. dubia. The presence of algae mitigated the combined toxicity of MPs and Pb, although algae alone increased Pb accumulation. Therefore, the toxicity mitigation through algae uptake came from mechanisms other than Pb accumulation, which will need further investigation. [Figure not available: see fulltext.].
X. Liu and J. Wang, "Algae (Raphidocelis Subcapitata) Mitigate Combined Toxicity of Microplastic and Lead on Ceriodaphnia Dubia," Frontiers of Environmental Science and Engineering, vol. 14, no. 6, Springer Verlag, Dec 2020.
The definitive version is available at https://doi.org/10.1007/s11783-020-1276-3
Civil, Architectural and Environmental Engineering
Keywords and Phrases
Algae; C. dubia; Lead; Microplastic; Toxicity
International Standard Serial Number (ISSN)
Article - Journal
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01 Dec 2020