Fig. 1. Map showing sampling locations.
Fig. 2. Spatial distribution of mean grain size(a), TOC(b), CaCO3(c), S(d), Fe(e), Al(f), Cs(g), Li(h) concentrations in surface sediments of August, 2016 and 2017.
Fig. 3. Spatial distribution of As(a), Cd(b), Cr(c), Ci(d), Ni(e), Pb(f), Zn(g) concentration in surface sediments of August, 2016 and 2017.
Fig. 4. Relationships between mean grain size, < 16 μm content and conservative elements (Al, Cs, Li) concentrations in surface sediments.
Fig. 5. Relationships between conservative elements (Al, Cs, Li) and heavy metals in surface sediments. Background concentrations presented as the regressed lines for background sediments were depicted as dotted lines.
Table 1. Measured concentrations of heavy metals for MESS-3/MESS-4(NRCC sediment certified reference material)
Table 2. Statistical parameters for mean grain size, total organic carbon(TOC), calcium carbonate(CaCO3), major elements and heavy metals in surface sediments
Table 3. Background concentrations of heavy metals (As, Cd, Cr, Cu, Hg, Ni, Pb and Zn) in coastal sediments of Korea, which were presented as a regressed line with Al, Cs, Li concentration
Table 4. Assessment of heavy metals in surface sediments based on Korean marine sediment quality guidelines and enrichment factors (Efs) relative to natural baseline concentrations (Aug, 2016 and 2017)
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