Pollution involves the introduction of contaminants into the natural environment, causing adverse changes. It is most commonly associated with emissions from industrial processes, waste disposal, and other human activities that introduce harmful substances into air, water, and land.
A sewer is a system of pipes, containment areas, and treatment facilities designed for the disposal of waste and the containment of rainwater. This infrastructure plays a crucial role in maintaining public health and environmental quality by efficiently managing sewage and stormwater.
