
            I3 EUTROPHICATION (Q)
Nitrogen and phosphorus loadings to the lake [kg yr-1] (1986)
 Source Industrial  Domestic  Agricultural  Natural  Total
--------------------------------------------------------------
  T-N    3,869      19,704       112,575     69,994  206,169
  T-P    1,476       2,501         2,681      2,633    9,291