Comparison of water quality status between two different types of river: a case study of Kemasin River and Pengkalan Chepa River
Water quality refers to the physical, chemical and biological status of the water body. Water quality Kemasin River (KR) affected by active agricultural activities while the Pengkalan Chepa River (PCR) is influenced by urban development and accommodation of crowded with heavy population since it...
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| Main Author: | |
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| Format: | Thesis |
| Language: | English |
| Published: |
2014
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| Subjects: | |
| Online Access: | http://eprints.usm.my/56902/1/NADZIRAH%20BINTI%20MORSAD-24%20pages.pdf |
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| Summary: | Water quality refers to the physical, chemical and biological status of the water body.
Water quality Kemasin River (KR) affected by active agricultural activities while the
Pengkalan Chepa River (PCR) is influenced by urban development and
accommodation of crowded with heavy population since it is situated in the urban
area. The aim of this study was to determine the characteristics of water quality of KR
and PCR as well as to determine the relationship status of water quality parameters
between KR and PCR. In addition, this study was to classify current status water
quality for KR and PCR based on the Water Quality Index (WQI). Sampling was
carried out for a month on January 2014. For each sampling activities, water sample
collections were done twice. Three sampling locations along the KR and PCR were
selected as sampling stations. For KR sampling station consists of Kg.Bangu (Station
1), Pengkalan Cina (Station 2) and Pengkalan Petah (Station 3). For PCR the sampling
stations consists of Sg.Keladi (Station 1), Kg. Baung (Station 2) and Kg.Pulau
Panjang (Station 3). Six water quality parameters: Dissolved Oxygen (DO),
Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Ammonia
Nitrogen (NH3-N), Total Suspended Solids (TTS) and pH were analyzed based on insitu
and ex-situ analysis. Statistical analysis of independent t -test indicated that there
were significant differences of BOD, NH3-N, TSS and pH between KR and PCR. The
results of water quality indicated that most of the water quality parameters higher at
PCR compared to KR. Currently WQI status for KR (65.48) was found better than the
PCR (44.71). WQI of KR was categories under class III while PCR was categories
under class IV that considered slightly polluted. The water quality status of KR was
affected due to active agricultural activities throughout the year and for PCR was
polluted due to land use activities from urban and industrial areas. In a conclusion, the
water quality of KR and PCR should be monitored extensively by the authorities and
pollution control and effective management of the river should be implemented with
the cooperation of the public and local authorities. |
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