Abstract:
Kurunegala is the capital of the Northwestern Province of Sri Lanka. It is situated about
116 km from Colombo, and 42 km from Kandy. The District covers an area of 4,816 km2
which is 7% of the total land area of Sri Lanka and 61% of the province. The topography
of the Kurunegala town is a plain area with the exception of surrounding rock outcrops.
The northern part of the town is slightly higher than the south. The Kurunegala Lake
adorns the town. The climate is tropical and hot all throughout the year. The surrounding
rocks play a major role in determining Kurunegala's weather since these rocks increase
and retain the heat of the day (WASPA, 2007). During the month of April the temperature
can rise up to about 35 degrees Celsius. Major soil types are red yellow podzolic soil with
strongly mottled sub-soil, red yellow low humid gley, reddish brown latosolic and regosol.
Kurunegala comprises of 30 Divisional Secretariats and 47 Grama Niladhari Divisions, of
which 12 are within the Municipal Council (MC). The MC area is 11.34 km2
. The
Kurunegala MC is responsible for overall administration, sanitary, welfare, and other
general activities of the city. The Kurunegala MC consists of a population of
approximately 37,500. It has nearly 7,500 households and the daily floating population is
more than 200,000. The average population density is 27.10 person/ha (JICA, 2008).
Municipal Solid Wastes (MSW) is one of the serious environmental issues in the
Kurunegala urban area and is a result of rapid urbanization, economic and infrastructure
development activities and population growth. Currently, unplanned and improper ways
of dumping of solid waste have become the most significant environmental issue. The
absence of a proper management of waste has a severe impact on the environment and
human health. The most common practice in handling municipal waste is open dumping
without any precautionary measures, which is a great threat to the environmental health. A
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significant variance could be seen between diseases, distance and directions around the
garbage dumping site.
The Kurunegala MC dumps 75 tons of solid wastes per day (MoE, 2005), collected twice
from its territory and transported to the dumping yard at Sundarapola (2 km from
Kurunegala City). The area of the dumping site is 12 acres. The site is high with rock type
ground and it is slightly sloping towards the western direction. The northern part of the
site consists of forest land. The open dumping and open burning of solid wastes are the
present disposal methods which are not acceptable from an environmental point of view.
These methods create a very serious health hazard to the area. The residents close to the
dumping site (0-500 m) are the most affected and they are compelled to breathe polluted
air with a nauseating smell of decomposed carcasses of animals.
The above condition leads to numerous environmental effects such as land and surface
water pollution, spread of air, water and vector borne diseases, emission of toxic gases and
leachate and odor and damage to the aesthetic beauty of the area. Further, it creates social
disparity among the community. It is an urgent requirement to draw the attention of policy
makers towards this serious issue. This study identifies the need of a proper solid waste
management plan to resolve the problems and manage the surrounding environment in a
healthy manner.
Considering the above, this study is designed with the prime objectives of identifying the
environmental and health effects of the Municipal Solid Waste dumping site and to
recommend effective managerial measures to safeguard its environmental health in a
sustainable manner.
The data were collected through a questionnaire survey, observations, formal interviews
and discussions with individuals and officials of the area. The study area was divided into
three strata, based on the distance from the solid waste dumping site. The samples of
households were selected randomly from each strata.. The stratified random sampling
technique was used to collect household information. Secondary data also were used for
the study. The SPSS statistical package was used to analyze the data and the two-way
ANOVA technique was applied to obtain the required information to analyze the raw data
and to evaluate the results.
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The results obtained from the study indicated that the different types of health issues and
its effects vary based on distance, direction and geographical factors. Accordingly, 58.2%
of the people in the first strata, 30.1% in the second and 11.7% in the third strata are
affected by various types of diseases. This shows a negative relationship between human
health effects and distance from the site and the first strata (0-500 m) is most vulnerable
for human lives.
Further, the result revealed that the health effect based on direction shows significant
variances due to the geographical features of the sites. The health of 45.5% of the people
in the south, 46.1% in the west and 7.4% in the east is adversely affected. The study
shows that the inhabitants have been affected by stomach pain, headache, skin rashes,
burning eyes, chronic cough, fever and phlegm, irritation, whooping cough, nausea,
wheezing, diarrhea, sore throat, kidney disease and asthma. The above results clearly
indicate that the wrong site selection greatly affects the health of those who are live around
the dumping site.
Any environmental effects which have been caused by human activities cannot be
eliminated completely, but can be controlled to a certain extent with the implementation of
proper management practices, public awareness and strict implementation of laws.
Therefore, it is necessary to formulate a suitable strategic plan pertaining to the MSW
management (waste collection, transportation, disposal, site selection and site
management) to ensure that MSW management services keep pace with socioeconomically benefited and environmental friendly. In parallel, an extensive public
awareness campaign is required to educate the public to reduce waste generation and
manage waste at the house hold level