Abstract:
Water pollution is one of the main topics of the urban environment in
Colombo, Sri Lanka's capital. The city of Colombo is Sri Lanka's most densely
populated area and the population of the Kelani River is very high. The main
purpose of this study is to identify the impact of directly changing the
environment on human beings. For this study, the area from the Peliyagoda
Bridge to the estuary of the Kelani River is selected and 25 water samples
from this zone are to be examined. The tests to be performed are the three
parameters of water valence (pH), biochemical oxygen demand(BOD), and
dissolve oxygen (DO). Primary data and secondary data will be used for this
research. Primary data will be used for this purpose through water sample
collection, interviews and field observations. Secondary data is also expected
to be used in books, journals, research, reports, etc. The new ArcGIS 10.2
software will be used primarily to analyze the data collected, with the main
focus being its interpolation methodology (IDW), which will be used also
(BUFFER, CLIP) to the main methodology. The results of the above research
will be analyzed using Microsoft Excel. The people of this area are suffering
from various health problems due to water pollution. The soil of the paddy
fields in the river has also been acidified. The human ecological approach to
physical geography was used to conduct this research.
