Ecotoxicity and Preliminary Risk Assessment of Nonivamide as a Promising Marine Antifoulant

الملخص EN

The unclear environmental performance of nonivamide limits its application as a marine antifoulant.

In this study, the natural degradation of nonivamide was studied in seawater and tap water.

The half-life was 5.8 d, 8.8 d, 12.2 d, and 14.7 d in seawater and tap water in photolysis and biolysis, respectively.

Furthermore, the ecotoxicity of nonivamide was assessed using marine microalgae, Chlorella vulgaris and Platymonas sp.; EC50, 6 d values on the growth of Chlorella vulgaris and Platymonas sp.

were 16.9 mg L−1 and 19.21 mg L−1, respectively.

The toxicity and environmental risk of nonivamide on microalgae were significantly decreased due to the natural degradation in seawater.