Environmental Engineering Reference
In-Depth Information
Table 1.14 Physico-chemical characteristics of surface water at high tide condition during May 2012
Station
no.
Water
temperature
( º C)
Salinity
( )
pH
Alkalinity
(mg/l)
DO
(mg/
l)
BOD
(mg/l)
COD
(mg/l)
NO 3
( µ g at/
l)
PO 4
( µ g at/
l)
SiO 3
( µ g at/
l)
Extinction
coefcient
(m 1 )
SO 4
(mg/
l)
Na
(mg/
l)
K
(mg/
l)
Cl
(mg/l)
Total N
( µ g at/l)
1
35.5
2.13
7.85
148
5.71
5.6
69
23.78
4.34
99.87
5.50
490
706
26
1,219
28
2
35.5
3.97
7.68
159
5.43
6.4
118
26.55
3.98
103.65
5.61
502
1,189
44
2,175
31
3
35.6
5.65
7.70
162
7.02
5.2
120
24.50
3.20
111.90
4.98
584
1,714
62
3,099
42
4
35.6
12.14
8.00
190
6.55
4.3
79
21.09
3.09
115.20
4.79
713
3,685
134
6,599
37
5
35.5
11.24
8.10
160
4.80
6.7
143
30.02
4.81
99.40
5.30
665
3,394
124
6,054
59
6
35.5
12.80
8.00
169
4.91
5.2
81
19.78
4.18
98.34
4.80
681
3,870
142
6,991
49
7
35.6
14.41
8.10
200
4.80
4.1
107
17.44
2.98
98.70
4.99
742
4,397
159
7,861
23
8
35.6
14.70
8.10
185
4.75
3.1
93
15.40
2.41
110.05
6.12
858
4,231
163
8,005
19
9
35.6
16.02
8.10
210
4.53
6.5
138
25.99
4.72
79.78
5.52
962
4,872
177
8,575
40
10
35.6
18.34
8.15
250
4.68
3.4
63
13.88
1.49
71.22
5.00
1,041
5,605
203
9,200
28
11
35.6
19.55
8.20
260
5.05
3.9
98
15.34
2.20
66.10
5.13
1,123
5,877
217
10,079
31
12
35.6
23.05
8.22
278
5.02
4.6
120
17.84
2.79
61.00
5.05
1,291
6,703
249
11,733
44
Table 1.15 Physico-chemical characteristics of surface water at low tide condition during May 2012
Station
no.
Water
temperature
( ° C)
Saliniy
( )
pH
Alkalinity
(mg/l)
DO
(mg/
l)
BOD
(mg/l)
COD
(mg/l)
NO 3
( µ g at/
l)
PO 4
( µ g at/
l)
SiO 3
( µ g at/
l)
Extinction
coefcient
(m 1 )
SO 4
(mg/
l)
Na
(mg/
l)
K
(mg/
l)
Cl
(mg/l)
Total N
( µ g at/l)
1
35.4
1.28
7.60
130
6.01
6.0
73
26.85
4.59
85.60
6.09
333
429
20
795
33
2
35.4
2.66
7.55
146
5.72
7.0
125
29.01
4.28
92.00
6.12
418
802
39
1,460
46
3
35.4
3.98
7.55
145
6.79
5.9
128
27.02
3.67
92.87
5.63
496
1,200
59
2,150
50
4
35.4
10.96
7.85
170
6.98
4.6
82
23.00
3.28
94.98
5.27
645
3,259
129
5,943
45
5
35.4
10.05
7.90
144
4.91
7.4
152
34.00
5.31
79.20
6.20
578
2,998
119
5,507
69
6
35.5
11.50
7.80
154
5.06
5.6
82
21.56
4.38
80.87
5.50
590
3,469
133
6,150
52
7
35.5
12.85
8.00
183
5.19
4.5
109
19.85
3.22
78.66
5.73
600
3,856
152
6,991
31
8
35.5
13.02
8.00
169
5.02
2.9
94
17.45
2.61
97.33
6.91
759
3,870
158
7,139
25
9
35.5
14.50
8.00
193
4.97
7.3
148
29.75
5.04
69.54
6.31
830
4,355
170
7,875
51
10
35.5
15.98
8.00
231
4.46
3.8
69
14.66
1.63
61.22
5.45
922
4,894
197
8,445
39
11
35.5
17.49
8.06
247
5.15
4.3
102
16.83
2.44
60.64
5.63
916
5,245
212
9,263
43
12
35.5
21.11
8.17
260
5.19
5.0
123
19.05
3.05
54.14
5.66
1,115
6,175
241
10,389
57
Search WWH ::




Custom Search