The nutrient concentration ranges reported as criteria of
eutrophication in coastal waters were: 1.15—2 mM for NH4,
0.53—4 mM for NO3 and >0.15—
0.34 mM for PO4
Sometimes nitrate concentrations exceed a factor of 5, the
low limit of eutrophication criteria (4 mM) as adopted by
According to these values, the Western
Harbour could be classified as eutrophic.