Mercury Contamination

Mercury contamination mind map
  Context
    Tropical birds in Central and South America
    Signs of mercury contamination
    Cause
      Artisanal and small-scale gold mining
    Proximity to mining
      Within 7 km
  Mercury use in Gold mining
    Forms amalgam with gold
    Extraction of gold from ore
    Amalgamation process
      Captures fine gold particles
    Environmental and health concerns
      Due to mercury pollution
  Key Findings
    Declining biodiversity
      Tropical birds affected
    Linked to
      Neurological illness
      Immune diseases
      Reproductive failure
        In humans and birds
    Birds as indicators
      Sensitive to ecosystem health
      “Canary in the gold mine”
        Signals environmental issues

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