Canoe Trip on the Chicago River

Our junior class of IGSS rowed for 3+ hours on the Chicago River with social studies teacher Colby Vargas and science teacher David Rafferty-Flatter. The purpose was to collect/test water samples at four points along the river while observing wildlife and industry along the way. Blessed with beautiful weather, we were able to view ducks, geese, and even a turtle sunning along the shores.



Chicago Water Quality Tests
Each test will be done with the 4 samples collected on Monday.

• Ammonia Nitrate - nitrates in conjunction with phosphates stimulate the growth of algae
• pH - solutions in pH range of 4-9 are not considered hazardous
• Chlorine -disinfecting agent
• Chromium - enters a water supply through discharges of industrial wastes - potential carcinogen
• Copper - essential element to the human body; large does are harmful, causing liver damage
• Cyanide - extremely toxic - found in water containing waste from metal finishing
• Iron - high levels indicate water contaminated by acid mine wastes
• Phosphorous - stimulates the growth of algae
• Silica - some scientists prefer not to see this in water
• Sulfide - rotten egg ordor in high concentrations

Students noticed that water closer to the city center smelled better and has less toxic chemicals in it.