Appraisal of Drainage System in Term of Water Stagnation inUrban Environment

This project title is 'Appraisal of drainage system in term of water stagnation in urban
environment'. The study area chosen for assessment is Manjung which focus on Taman
Megah Tiga in Sitiawan and Taman Mas inKampung Koh and also Universiti Teknologi
Petronas, UTP. The area is selected with the recommendation from Personnel from
Jabatan Kesihatan Perak Tengah, Mr. Mohan since it recorded a high number of dengue
cases in 2004 which is 100 cases for Sitiawan and 97 cases for Kampung Koh. Due to the
high cases of dengue fever in the area, Jabatan Kesihatan Daerah Manjung has taken
preventive measure by using 'Abete' to kill mosquito larvae.
In this project, an assessment of the existing drainage system for the study area has been
doneandtesting has beendoneon the quality of watersample taken from different sumps
that have water stagnation problem. For this project, only 7 samples were collected and
tested for BOD, COD, pH, turbidity and total suspended solids (TSS). The value for BOD
range from 17 mg/L to 55 mg/L while for COD, the value range from 9 mg/L to 128
mg/L. The total suspended solids of the samples range from 0.2 mg/L to 0.5 mg/L. The
water samples were quite neutral since most of the pH values were more or less equal to
7. Ovitrap research was also done for UTP to determine the ovitrap index. The result
shows that the ovitrap index is 40%. The result shows that UTP is susceptible to Dengue
outbreak and serious measures have to be done to reduce the breeding ground of
mosquito.
In the literature review and theory section, result from previous research conducted in
India and Thalandare presented. In India, there has been a program to control Malaria by
using larvivorous fish such as Gambusia. The application of the larvivorous fish shows a
positive result where afterthe application, breeding of mosquito is reduced rapidly and at
some places, it is reduced to 0%.