Bulleted List of Analysis, to go before conclusion

Analysis
Different heavy metals showed variable concentrations both throughout the pond system and into the pond’s core. The different trends suggest that these metals were likely deposited from different sources and through different processes.

  • Manganese and Iron
    • Higher concentration at Silver Thread source shows these metals may be externally sourced and cannot travel farther downstream
    • High levels of manganese (above 0.05 mg/L) can cause a bad taste in water which may discourage animals from using Paramecium Pond as a drinking source
  • Zinc, Copper, Chromium
    • Concentration also higher at Silver Thread source, trends diverge in rest of system
    • Could be product of runoff or specifically from college road
    • Likely sourced from Paintshop Pond
      • Paintshop Pond is contaminated with toxins and heavy metals due to dumping of paint factory waste from 1848-1920
      • Likeliest source of zinc, copper, and chromium in Paramecium Pond
      • Heavy metals found in the pond and not the Silver Thread are likely sourced primarily from Paintshop Pond
  • Lead
    • Likely sourced from Paintshop Pond as well
    • Lead detected in the Silver Thread could be coming from runoff or the pipes that feed the stream

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