Environmental parameters of coastal waters in three National Parks of Southern Sarawak
Inefficient and irresponsible anthropogenic discharges from the intensified urbanization and development into water environment have caused severe degradation to aquatic ecosystem. Sarawak’s coastal waters especially are highly exposed to pollutants from aqua-agricultural activities, domestic was...
Saved in:
| 主要作者: | |
|---|---|
| 格式: | Thesis |
| 語言: | English |
| 出版: |
2015
|
| 主題: | |
| 在線閱讀: | http://ir.unimas.my/id/eprint/10806/1/Faddrine.pdf |
| 標簽: |
添加標簽
沒有標簽, 成為第一個標記此記錄!
|
| 總結: | Inefficient and irresponsible anthropogenic discharges from the intensified urbanization and
development into water environment have caused severe degradation to aquatic ecosystem.
Sarawak’s coastal waters especially are highly exposed to pollutants from aqua-agricultural
activities, domestic waste, discharges by shipping vessels leakages and disposal of engine oils,
and high sedimentation rate. In long term effects, these would indirectly lead to the depleting
of coastal resources and loss of biodiversity. In this study, in-situ and ex-situ water
environmental parameters, and heavy metals concentration distribution were measured at
Talang-Satang National Park (including Sampadi Island), Maludam National Park and
Kuching Wetland National Park from March 2013 to June 2014. Results from the study
indicated that water temperature and pH were classified under Class I, ranging from 26 – 30
°C and pH 7 – 8 respectively. Meanwhile, turbidity (0 – 3 NTU), dissolved oxygen (DO) (5 –
9 mg/L) and total suspended solid (TSS) (0.00 – 0.50 mg/L) for all sites were under Class I
except for Kuching Wetland National Park’s which were under Class V, and IV (E)
respectively. Whereas, nutrients (nitrate and orthophosphate) of all sites fell under Class 3, and
nitrite was under Class I. Talang Talang Island showed rather contradicting results in heavy
metal levels with Satang Island despite their establishment together as one National Park.
Most of Talang Talang Island’s heavy metals (As, Cu, Pb and Zn) were classified under Class
3 while Satang Island’s were within Class 1 and 2. Kuching Wetland National Park and
Maludam National Park both bear resemblence in heavy metal levels that most of them were
classified under Class 2 and 3 (As, Cu, Pb and Zn). Manganese and Nickel levels of all sites
were under Class I and IIA/IIB respectively, except for Nickel of Kuching Wetland National
Park (Class I). The unforeseen high heavy metal levels in Talang Talang Island regardless of
its protected marine park status was awfully concerning. The land-based anthropogenic input
and aqua-agricultural activities within its proximity contributed most of the pollutants and
definitely affecting the water quality. On the other hand, an immense population residing
alongside both Kuching Wetland National Park and Maludam National Park certainly affected
the water quality at respective sites. It can be concluded here how water environment is one
fragile ecosytem. Therefore, continuous water environmental parameters study and monitoring
is significant as to supply rapid assessments of water quality; prior to detection of pollution
influx and indirect manifestation in living organisms. Ergo, an optimization of coastal
development and socio-economic growth while sustaining and preserving targeted natural
resources is significant, and that it involves various efforts from all parties. |
|---|