Table 4.

MeHg VCFs from culture experiments (a) and field studies (b).

(a) Lab study
Particle type	Diameter range* (μm)	Log VCF	References
Marine algae	1.0–12 (6)	4.3–6.8	This study
	5.0–32 (5)	4.9–6.2	Kim et al. (2014)
Freshwater algae	8.0 (1)	4.2–5.4	Luengen et al. (2012)
	2.0-8.2 (4)	5.1–6.2	Pickhardt and Fisher (2007)
	4.0-120 (4)	5.4–6.9	Miles et al. (2001)
Glass beads	5.0	3.1	This study
(b) Field data
Sampling site	Size range (μm)	Log VCF†	References
North Sea		4.2	Baeyens et al. (2003)
Belgian coast		4.2	Baeyens et al. (2003)
Long Island Sound	>0.2	4.5	Hammerschmidt and Fitzgerald (2006a)
Northeast Atlantic	0.2–200	4.9	Hammerschmidt et al. (2013)
North Pacific	1.0–51	5.9	Hammerschmidt and Bowman (2012)
Central Pacific	0.2–200	6.3	Gosnell and Mason (2015)

^*Mean diameter of algal cells. The numbers in parentheses indicate the number of algal species tested in the study.

^†Literature values were originally on a dry wt basis; they were converted to VCFs by using a mean cell volume:dry wt ratio of 5.0, based on measured values from 6 marine phytoplankton cells (Fisher et al. 1983a)