24
Agricultural
activity
5. Irrigation
Impacts
Surface water Groundwater
Runoff of salts leading to
salinization
of surface waters; runoff of
fertilizers
and pesticides to surface waters with
ecological damage, bioaccumulation
in edible fish species, etc. High
levels
of trace elements such as selenium
can occur with serious ecological
damage and potential human health
impacts.
Enrichment of groundwater with
salts, nutrients (especially nitrate).