Agriculture Reference
In-Depth Information
Figure 7.5 As and Pb in the upper part of the basin from 1997 to 2004, where
vertical lines represent the standard error of the mean
inadequate treatment of domestic sewage from human settlements along the
Rı´ mac River. Improper disposal thus contaminates the surface water. As
an indicator bacteria, the presence of such a level of FC contamination
suggests that the water poses a risk for agricultural activity in the Rı´ mac
Valley.
Perception of risk to pollution or exposure to contaminants
Among survey participants, 74 per cent of farmers perceived that water used
for irrigation is contaminated and 73 per cent thought domestic sewage and
