Table 3: Dispersion stabilities, as measured by their corresponding “half-lives” (the time it takes for particle concentration to be reduced by half) of the different nanomaterials when dispersed in various media.

Sample name DI water (min) Fish media (min) Seawater (min) Daphnia media (min) Nanograin CeO2 2676 282 288 252 Nanosun ZnO 2526 498 402 444 Micron ZnO 966 216 228 324 Z-COTE ZnO 4038 816 738 768 Micron CeO2 432 348 294 294 Ceria Dry CeO2 780 438 534 600