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The presence of products containing nanoparticles or nanofibers is rapidly growing. Nanotechnology involves a wide spectrum of industrial fields. There is a lack of information regarding the toxicity of these nanoparticles in aqueous media. The potential acute toxicity of ZnO NPs using two marine crustacean species: the copepod  Tigriopus fulvus  and the amphypod  Corophium insidiosum  was evaluated. Acute tests were conducted on adults of  T. Fulvus  nauplii and  C. insidiosum . Both test species were exposed for 96 h to 5 increasing concentrations of ZnO NPs and ZnSO 4 H 2 O, and the endpoint was mortality. Statistical analysis revealed that the mean LC50 values of both ZnO NPs and ZnSO 4 H 2 O (ZnO NPs:  F  = 59.42;  P  < 0.0015; ZnSO 4 H 2 O:  F  = 25.57;  P  < 0.0015) were significantly lower for  Tigriopus fulvus  than for  Corophium insidiosum . This result confirms that the toxic effect could be mainly attributed to the Zn ions, confirming that the dissolution processes play a crucial role in the toxicity of the ZnO NPs.

Nanoparticles: An Experimental Study of Zinc Nanoparticles Toxicity on Marine Crustaceans. General Overview on the Health Implications in Humans