. Author manuscript; available in PMC: 2016 Feb 17.

Published in final edited form as: Environ Sci Technol. 2015 Feb 6;49(4):2477–2485. doi: 10.1021/es5056462

Table 2. Experimental Conditions and Toxicity Endpoints.

assay	test condition exposure media	duration	[ENM^a]	toxicity endpoints endpoints	unit
fitness	aqueous	1 week	1, 5, 25, and 50 ppm	optical density (OD₅₉₅) fitness	N/A^b
fitness	aqueous	1 week	1, 5, 25, and 50 ppm	optical density (OD₅₉₅) fitness	N/A
lifespan	solid	∼4 weeks	0.21, 0.52, 1.04, 2.08 μg/cm² well surface	survival curve mean lifespan	% alive over time day
body size	aqueous solid	3 days^c	1, 5, 25, and 50 ppm	average body length	μm
body size	aqueous solid	3 days	0.21, 0.52, 1.04, 2.08 μg/cm² well surface	average body length	μm
locomotion	solid	∼2 weeks	0.21, 0.52, 1.04, 2.08 μg/cm² well surface	average speed	μm/sec

Engineered nanomaterials.

Not available (no unit).

Chemicals with tannic acid were incubated for 4 days. Otherwise, incubation time was 3 days.