Livelihood condition: water quality

impact chain for hydrological drought (click any node to view details):
Changes in water availability, both increases as well as decreases, can affect water quality. Increased water availability, especially through heavy rainfall, can lead to increased suspended matter in water bodies, as well as a washing out of contaminants (e.g. fertilizer, toxins) into water and groundwater. Additional stagnant water (puddles) can lead to an increase in water-borne diseases (Z. Kundzewicz et al., 2007) (Graedel & Voet, 2010). Reduced water availability may lead to re-suspension of bottom sediment as well as increased salinization (Z. Kundzewicz et al., 2007). It can lead to an increase in pathogen and chemical loading due to less dilution (Bates et al., 2008).

Note that all definitions do not have specific spatial or temporal limitations. They are defined within a qualitative context and can be specified once they are applied in a certain context.
related maps:
check out the ci:grasp Livelihood Condition Viewer for maps and diagrams on livelihood condition: water quality