Assessment of the characteristic of nutrients, total metals, and fecal coliform in Sibu Laut River, Sarawak, Malaysia
The concentrations of nutrients (nitrogen and phosphorus), total metals, and fecal coliform (FC) coupling with chlorophyll-a (chl-a), 5-day biochemical oxygen demand (BOD5) and other general environmental parameters were evaluated at the sub-surface and near-bottom water columns of 13 stations...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Springer
2016
|
| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/12866/ http://ir.unimas.my/id/eprint/12866/1/Assessment%20of%20the%20characteristic%20of%20nutrients%2C%20total%20metals%20%28abstract%29.pdf |
| Summary: | The concentrations of nutrients (nitrogen and
phosphorus), total metals, and fecal coliform (FC) coupling
with chlorophyll-a (chl-a), 5-day biochemical oxygen
demand (BOD5) and other general environmental parameters
were evaluated at the sub-surface and near-bottom
water columns of 13 stations in the Sibu Laut River during
low and high slack waters. The results indicated that
inorganic nitrogen (mainly nitrate) was the primary form of
nitrogen whereas organic phosphorus was the major form
of phosphorus. The abundance of total heavy metals in
Sibu Laut River and its tributaries was in the order of
Pb\Cu\Zn\Cd. Fecal coliform concentration was
relatively low along Sibu Laut River. The shrimp farm
effluents contributed a substantial amount of chl-a, BOD5,
nutrients, and FC to the receiving creek except for total
metals. Nevertheless, the influence was merely noticeable
in the intake creek and amended rapidly along Selang Sibu
River and brought minimal effects on the Sibu Laut River.
Besides, the domestic sewage effluents from villages
nearby also contributed a substantial amount of pollutants. |
|---|