ENVIRONMENTAL and health impacts
The organic fraction of MSW is an important component, not only because it constitutes a sizable
fraction of the solid waste stream in a developing country, but also because of its potentially
adverse impact upon public health and environmental quality. A major adverse impact is its
attraction of rodents and vector insects for which it provides food and shelter. Impact on
environmental quality takes the form of foul odours and unsightliness. These impacts are not
confined merely to the disposal site. On the contrary, they pervade the area surrounding the site
and wherever the wastes are generated, spread, or accumulated.
Unless an organic waste is appropriately managed, its adverse impact will continue until it has
fully decomposed or otherwise stabilised. Uncontrolled or poorly managed intermediate
decomposition products can contaminate air, water, and soil resources.