Site-specific risk assessment and management of point and diffuse sources - Environmental Deterioration and Contamination: Problems and their Management - page 323

Figure 10.3a Scale of diffuse pollution from diffuse sources: watershed scale.
Figure 10.3b Scale of diffuse pollution from diffuse sources: global scale.
Hindering soil erosion and runoff are effective measures in the prevention of sur-
face waters from diffuse pollution. A protective strip, a zone between agricultural land
and freshwaters may prevent the direct transport of agrochemicals and nutrients into
the water bodies.