| Category | 
                    Item Name | 
                    Item Title | 
                                        Item | 
                    More Info. | 
                                    
                                            
                                 | D. Physiographic Features | 
                                                     D2 Climatic | 
                                Mean temp. precip. monthly (1945-1989); Water temp. monthly (1985-1989) | 
                    
eur-50-d2.xls
                            
                
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                                 | E. Water Quality | 
                                                     E1 Transparency | 
                                Monthly (1990) | 
                    
eur-50-e1.xls
                            
                
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                                     E2 pH | 
                                Surface, -1m (1985-1989) | 
                    
eur-50-e2.xls
                            
                
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                                     E3 SS, Solids | 
                                Monthly, on surface (1985-1989) | 
                    
eur-50-e3.xls
                            
                
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                                     E4 DO | 
                                Monthly, on surface and -1m (1985-1989) | 
                    
eur-50-e4.xls
                            
                
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                                     E5 COD | 
                                KMnO4, monthly, on surface and -1m (1985-1989) | 
                    
eur-50-e5.xls
                            
                
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                                     E7 Nitrogen | 
                                T-N, monthly, on surface and -1m (1985-1988) | 
                    
eur-50-e7.xls
                            
                
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                                     E8 Phosphorus | 
                                T-P, monthly, on surface and -1m (1985-1988) | 
                    
eur-50-e8.xls
                            
                
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                                     E10 Past Trends | 
                                pH, SS, DO, COD, T-N, T-P, means of whole year (1965-1989) | 
                    
eur-50-e10.xls
                            
                
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                                 | F. Biological Features | 
                                                     F4 Biomass | 
                                Zooplankton, past trends (1956-1977) | 
                    
eur-50-f4.xls
                            
                
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                                     F6 Past Trends | 
                                Fish catch, fishery production trends (1981-1989), Phytoplankton, zooplankton and zoobenthos biomass, monthly (1949-1990) | 
                    
eur-50-f6.xls
                            
                
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                                 | G. Socio-economic Conditions | 
                                                     G1 Land Use | 
                                Natural, agricultural, residential, others (1980) | 
                    
eur-50-g1.xls
                            
                
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                                 | H. Lake Utilization | 
                                                     H2 Lake as Water Resource | 
                                Water supply for fish farms | 
                    
eur-50-h2.xls
                            
                
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                                 | I. Deterioration and Hazards | 
                                                     I2 Toxic Contamination | 
                                Oil products, Cu, Ni, Ohenols (1989) | 
                    
eur-50-i2.xls
                            
                
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                                 | J. Wastewater Treatment | 
                                                     J2 Nutrient Loads | 
                                Nonpoint, point | 
                    
eur-50-j2.xls
                            
                
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