Table 5.
Heavy metal contents of domestic mudflat solar salts and foreign salts

Type2)	Heavy metal
	As (ppm)	Cd (ppm)	Pb (ppm)	Hg (ppb)
	MSS (n=15)	0.06±0.03a,1)	0.01±0.01a	0.28±0.08a	0.06±0.01a
FSS (n=23)	0.05±0.02a	0.01±0.01a	0.13±0.04a	0.07±0.01a
FLSS (n=8)	0.13±0.06a	0.01±0.00a	0.12±0.05a	0.10±0.01a
FRS (n=7)	0.06±0.03a	0.01±0.00a	0.41±0.20a	0.10±0.02a
F-value	0.810ns,3)	0.220ns	2.323ns	1.606ns

Values are mean±SE.
MSS: Mudflat solar salt produced in Korea, FSS: Foreign sea salts, FlSS: Foreign large solar salts, FRS: Foreign refined salts.
ns; No significant
The different letters in the same column is significant difference at the p<0.05 level by ANOVA.