Distribution of Major and Trace Elements in a Tropical Hydroelectric Reservoir in Sarawak, Malaysia
Table 2
The nonzero average of metal contents in different samples.
Elements
Water (mg/L except Hg in g/L)
Sediment (mg/kg)
Macroalgae (mg/kg)
Aquatic plants (mg/kg)
Fish (mg/kg)
Literature range in sediment (mg/kg)
Literature range in water (mg/L and g/L if indicated with*)
Na
nd
3190–6910a
—
K
7550–17300a
—
Mn
nd
348–5740a; 167–915c
4–86a; 0.038–0.239c; 0.2–10d; 0.05e
Cr
nd
40–343a; 30.2–74.8b; 92.5–160c; 37.3f; 90g
7-8a; 2.4–7.; 0.003–0.037c; 0.1d; 0.05e
Ni
nd
nd
nd
nd
11.6–64.5a; 6.2–17.8b; <0.05c; 21f; 52g
9–18a; 1.2–5.; 0.005–0.035c; 0.2d
Zn
nd
nd
nd
nd
54–904a; 21.8–127b; 182–484c; 123f; 315g
<5a; 26–88.; 0.016–0.066c; 2d; 5e
Mg
2400–7630a
11200–17300a
Fe
8340–25400a; 12842–53581c
90–164a; 0.088–0.463c; 5d; 0.3e
Sn
nd
nd
Al
nd
20000–52200a; 12280–35035c
20–98a; 0.024–0.149c; 5d
Ca
16000–82100a
As
nd
nd
nd
nd
3.2–7.4a; 34.1–112.8b
11–14a; 13.1–47.
Se
nd
nd
nd
—
Hg
0.17–0.35b
0.01–0.
Blackfoot River watershed [24]. Port Klang coastal area [25]. Nile Delta [26]. Food and Agriculture Organization Guidelines, 1985 [26]. Canadian water quality guidelines for the protection of aquatic life [26]. Interim freshwater sediment quality guidelines [26]. Probable effect level [26]. indicates unit in g.