http://ccma.nos.noaa.gov/publications/eutroupdate/Key_findings.pdf
"Factors influencing eutrophication (nitrogen load and susceptibility) were high for the majority of assessed systems.
"The majority of estuaries assessed had overall eutrophic conditions rated as moderate to high.
"If only assessed systems are considered, conditions have improved in 13 estuaries, worsened in 13, and remained the same in 32 systems...."
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