Water quality has deteriorated as a result of
pollution in nearly all major rivers in Africa, Asia
and Latin America.
Nutrient loading, which is often associated with
pathogen loading, are
among
The most prevalent sources of pollution.
Significant data gaps for wastewater remain. For example, reporting on the
SDG Indicator 6.3.1, the
proportion of wastewater safely treated, shows
that 59% of
Domestic wastewater flow is collected and safely treated, but this is based on
data from only 79 countries, mostly high- and middle-income, and the data on
Industrial wastewater are insufficient. It has been estimated that only 8% of
industrial and municipal wastewater in low-income countries undergoes treatment of any
kind.
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