Environmental Engineering Reference
In-Depth Information
Table 3.6 Final NSFWQI and interpretation of water quality of K
ā
r
ū
n River
Monitoring
station
Final
WQI
Water quality
interpretation
Monitoring
station
Final
WQI
Water quality
interpretation
Dez-Dez dam
59.42
Medium
K
ā
r
ū
n-
Bandegher
51.69
Medium
Dez-
Chamgalak
66.38
Medium
K
ā
r
ū
n-Ramin
51.76
Medium
Dez-Sugar
factory
60.96
Medium
K
ā
r
ū
n-Zargan
49.04
Bad-medium
K
ā
r
ū
n-
Newsite
Dez-Abshrin
56.64
Medium
51.45
Medium
Dez-Mostofei
53.29
Medium
K
ā
r
ū
n-
Polpanjom
50.77
Bad-medium
Dez-
Bandegher
58.10
Medium
K
n-
Choneibeh
ā
r
ū
49.15
Bad-medium
K
n-Ab-
baspour dam
ā
r
ū
65.74
Medium
K
n-
Omotayer
ā
r
ū
49.45
Bad
K
ā
r
ū
n-Gatv-
and dam
61.96
Medium
K
ā
r
ū
n-
Darkhovein
51.75
Medium
Kroon-
Bandmezan
61.08
Medium
K
ā
r
ū
n-Nahr
51.16
Medium
Gargar-
Bandshushtar
50.11
Medium
K
n-
Saboonsazi
ā
r
ū
47.15
Bad
Shotait-
Shushtar
51.72
Medium
Hafar-
Gomrok
58.58
Medium
Gargar-
Bandegher
51.62
Medium
Bahmansher-
Abolhasan
59.05
Medium
Shotait
—
Bandegher
52.89
Medium
Bahmansher-
Choedeh
58.08
Medium
Subsequently, around Khoramshahr city, water qualities aggravates. River water
quality from this point to the nearby Persian Gulf again improves to medium. It is
worth mentioning that Noroozian (
2000
) also studied the water quality of the river
albeit using the fuzzy method and obtained different results. The explanation lies in
the fact that the NSFWQI is not for a speci
c application, while in the fuzzy study,
standards of protection of aquatic life was considered. In addition, the de
nition of
water quality in NSFWQI and fuzzy method is not quite the same.
3.6 Application of NSFWQI Method in Se
d-Rud River
(Iran)
The case study area is Se
d-Rud River which is located in the province of Gilan,
Iran (Fig.
3.4
). This river originates from branches of Ghezelozan and Shahrod to
Caspian Sea. The branch of Ghezelozan originated from the mountains of Kurdistan
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