Sanitation and Vector Control - Biological and Environmental Control of Disease Vectors - page 149

within a squatting pan, a seat or directly within
the slab. The superstructure provides privacy
and protection from environmental conditions;

it can be made from a variety of materials
ranging from bricks to plastic, leaves and grasses
(Fig. 8.3).

(a)

(b)

(c)

(d)

Fig. 8.3. Pit latrines constructed using different
materials.