International Journal of Marine Science, 2017, Vol.7, No.35, 353-360
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Table 1 The concentrations of heavy elements in dissolved and particulate phases at the studied stations during the studied periods
Stations
Heavy elements Dissolved phase(µg/l)
Mean ±SD
Particulate phase (µg/g dry weight)
Exchangeable
Mean ±SD
Residual
Mean ±SD
Station 1
Cd
3.06 ±1.82
53.51 ±63.21
64.61 ±83.69
Cu
2.58 ±0.84
67.10 ±31.15
107.60 ±226.30
Fe
145.68 ±108.39
9510.0 ±3640.0
23945.0±8872.0
Mn
4.98 ±1.46
1480.2 ±442.0
423.3 ±121.9
Ni
10.45 ±2.15
132.38 ±79.83
194.83 ±84.94
Pb
46.26±8.68
312.60 ±193.0
444.60 ±512.9
Zn
8.20 ±3.69
245.40 ±211.9
246.40 ±146.6
Station 2
Cd
3.08 ±1.81
54.30 ±66.25
61.76 ±81.19
Cu
2.44 ±0.8
56.54 ±15.5
88.20 ±179.7
Fe
107.91 ±64.15
9505.0 ±3996.0
24181.0 ±5099.0
Mn
4.79 ±1.29
1866.8 ±633.0
371.1 ±90.8
Ni
10.18 ±1.28
129.84 ±81.83
174.91 ±63.77
Pb
46.55 ±7.70
268.6 ±173.6
383.7 ±368.2
Zn
8.73 ±5.24
385.3 ±205.2
233.2 ±109.6
Station 3
Cd
2.95 ±1.68
48.81 ±47.52
59.48 ±63.13
Cu
2.28 ±0.74
61.06 ±26.49
85.7 ±149.5
Fe
88.21 ±66.96
10107.0 ±4850.0
22331.0 ±4810.0
Mn
4.09 ±1.46
1956.8 ±679.9
374.2 ±90.5
Ni
9.47 ±1.65
135.17 ±78.98
172.31 ±76.91
Pb
40.91 ±9.44
303.6 ±176.6
440.5 ±444.7
Zn
5.92 ±1.54
232.8 ±105.5
233.4 ±106.0
Station 4
Cd
3.07 ±1.81
56.47 ±53.96
69.64 ±68.46
Cu
2.29 ±0.90
57.27 ±37.80
101.4 ±207.5
Fe
63.69 ±43.01
9419.0 ±4134.0
18667.0 ±7889.0
Mn
4.575 ±1.474
2396.5 ±1041.0
334.4 ±134.1
Ni
9.07 ±1.93
120.42 ±85.69
126.49 ±86.19
Pb
42.55 ±6.91
321.1 ±111.6
509.3 ±462.6
Zn
9.65 ±16.87
234.1 ±101.3
254.2 ±138.8
Station 5
Cd
2.88 ±1.54
28.42 ±29.29
31.93 ±35.25
Cu
2.14 ±0.84
22.74 ±9.46
60.8 ±101.5
Fe
41.75 ±25.77
6111.0 ±3322.0
18428.0 ±7933.0
Mn
3.97 ±1.28
954.1 ±373.5
325.2 ±137.7
Ni
8.39 ±2.07
81.99 ±49.42
146.55 ±48.36
Pb
42.08 ±9.04
144.6 ±61.10
159.8 ±144.50
Zn
5.427 ±3.5
107.0 ±78.80
127.4 ±61.30
Note: mean ±Standard deviation (SD)
The concentrations of iron in dissolved phase ranged from (41.75 µg/L) at station 5 to (145.68 µg/L)
at station 1
(Table 1). Significant differences (P<0.01) were found among the concentrations at different stations. In the
exchangeable phase of particulate the concentration ranged from (6111.0 µg/g dry weight) at station 5 to (10107.0
µg/g dry weight) at station 3. In the residual phase of particulate ranged from (18428.0 µg/g dry weight) at station
5 to (24181.0 µg/g dry weight) at station 2. Non-significant differences (P>0.05) were found among the
concentrations of iron in the exchangeable or residual phases of particulate at different stations.
The concentrations of manganese in dissolved phase ranged from (3.97 µg/L) at station 5 to (4.98 µg/L) at station 1
(Table 1). Non-significant differences (P>0.05) were found among the dissolved concentrations at different stations.
