Table 1.

Information on GO concentration and particle size from 5 mg/L GO chambers (A) and 2.5 mg/L GO chambers (B). For DLS measurements, the most abundant particle size is assigned a relative number of 100. Size distribution is shown as a range associated with particles assigned a relative number of at least 1 (frequency >1) and as a range associated with particles assigned any number > 0 (all data). Exposure chambers indicated as SW are seawater chambers without oysters.

A (5 mg/L)				Size range (relative distribution)
Chamber #	Time post GO addition	Conc.	Most abundant size	Frequency >1	All data	Effective diameter
	(mins)	(mg/L)	(nm)	(nm)	(nm)	(nm)
1	2	3.23	68	68–94	68–8466	2183.8
7	2	3.11	130	130–210	130–3362	1803.1
13	2	3.86	183	183–1731	183–10,000	2414
19	2	3.49	316	258–1971	258–3278	1994.7
4	13	2.58	85	85–140	85–10,000	3528.3
10	13	3.20	94	94–763	94–10,000	2620.4
25 (SW)	21	2.70	132	132–1326	132–10,000	4444.3
25 (SW)	22	2.97	135	135–201	135–4889	3098.3
25 (SW)	23	2.73	103	103–499	103–6230	2892.9
25 (SW)	25	2.75	83	83–115	83–10,000	5835.9
B (2.5 mg/L)
8	6	1.48	101	101–687	101–5419	1947.8
14	6	1.59	103	103–183	103–3303	1725.3
20	6	1.47	69	69–96	69–10,000	2232.8
5	17	1.04	107	107–147	107–10,000	4539.9
11	17	1.52	73	73–102	73–10,000	2944.8
17	17	1.05	106	106–169	106–10,000	2967.4
26 (SW)	24	1.26	83	83–156	83–10,000	4048.5
26 (SW)	26	1.19	114	114–153	114–4500	3434.2
26 (SW)	27	1.28	160	160–289	160–10,000	4000.6
26 (SW)	28	1.29	743	743–1081	743–10,000	6213.3