Evaluation of the Water Quality Status and Pollution Load Carrying Capacity of Way Umpu River, Way Kanan District, Lampung Province, Indonesia, Based on Land Use
Table 3
Analysis of load capacity of Way Umpu downstream.
No.
Parameter/river
Unit
Sampling location
Standard Class III
ST-1
ST-2
ST-4
ST-6
ST-7
1
River discharge
(m3/sec)
12.4
61.2
0.3
10.7
84.5
2
Water Temp
°C
27.9 ± 0.1
27.6 ± 0.1
29.2 ± 0.3
27.9 ± 0.1
27.7 ± 0.1
—
3
TDS
mg/L
28 ± 1.4
24.5 ± 1.1
42.1 ± 1.2
31.2 ± 0.2
26.0 ± 0.6
1,000
4
TSS
mg/L
7.4 ± 0.4
12 ± 1.0
235 ± 2.8
1 0.8 ± 0.4
12.0 ± 0.7
100
5
Color
Pt-Co
38.7 ± 2.8
40.5 ± 1.7
181 ± 7.1
42.3 ± 2.8
41.0 ± 1.3
100
6
Turbidity
NTU
4.9 ± 0.6
5.8 ± 0.1
70.6 ± 6.4
9.4 ± 0.4
6.4 ± 0.2
—
7
pH
—
7.8 ± 0.1
7.4 ± 0.1
6.7 ± 0.3
7.7 ± 0.2
7.6 ± 0.1
6–9
8
Salinity
o/oo
0
0
0
0
0 ± 0
—
9
BOD
mg/L
2 ± 0.3
2.2 ± 0.3
9.7 ± 0,2
2.0 ± 0.1
2.2 ± 0.2
6
10
COD
mg/L
1.9 ± 0.1
4.4 ± 0.4
22.4 ± 1.6
4.1 ± 0.2
4.0 ± 0.4
40
11
DO
mg/L
3.9 ± 0.6
3.8 ± 0.1
3.9 ± 0.6
3.7 ± 0.3
3.8 ± 0.2
3
12
P (PO4−)
mg/L
0.4 ± 0.01
0.5 ± 0.04
0.3 ± 0.02
0.4 ± 0.04
0.4 ± 0.1
1
13
N (NO3−)
mg/L
0.5 ± 0.01
0.7 ± 0.06
1.7 ± 0.04
1.5 ± 0.4
0.7 ± 0.01
20
14
Cd
mg/L
0.0002 ± 0
0.0002 ± 0
0.0002 ± 0
0.0002 ± 0
0.0002 ± 0
0.01
15
Cr
mg/L
0.0003 ± 0
0.0003 ± 0
0.0003 ± 0
0.0003 ± 0
0.0003 ± 0
0.01
16
Cu
mg/L
0.002 ± 0.001
0.003 ± 0.001
0.002 ± 0.0003
0.002 ± 0.001
0.003 ± 0.0009
0.02
17
Pb
mg/L
0.001 ± 0.001
0.001 ± 0.0001
0.001 ± 0.0001
0.0008 ± 0.001
0.001 ± 0.0002
0.03
18
Hg
mg/L
0.0002 ± 0
0.0002 ± 0
0.0002 ± 0
0.0002 ± 0
0.0002 ± 0
0.002
19
N (NO2−)
mg/L
0.002 ± 0.002
0.003 ± 0.001
0.008 ± 0.001
0.007 ± 0.003
0.003 ± 0.0003
0.06
20
Cn
mg/L
0.01 ± 0
0.01 ± 0
0.01 ± 0
0.01 ± 0
0.01 ± 0
0.02
21
Fecal coliform
MPN/100 mL
7.2 ± 0.3
9.4 ± 1.0
11 ± 1.4
7.2 ± 0.3
8.8 ± 0.6
2,000
22
Total coliform
MPN/100 mL
7.2 ± 0.3
9.4 ± 1.0
11 ± 1.4
7.2 ± 0.2
8.8 ± 0.7
10,000
Note. Standard according to reference Local Regulation of Lampung Province [20]. ST-7 = prediction result of pollution carrying load capacity of each water quality parameter [17].
