Copper/Silver Ionization and Legionella Bacteria

What can we do?

  • Contact your building engineer or owner and ask for results of water tests for Legionella.
  • Ask about the their plan for management and what control methods they have in place.
  • Recommend non-toxic methods of control including copper/silver ionization.

Did you know?

  • Legionella bacteria is estimated to exist in 50% of all cooling towers.
  • The total number of cooling towers in the US is estimated at between 500,000 to 600,000.
  • Existing Legionella bacteria escapes cooling towers through "drift" into the surrounding environment.
  • Legionella bacteria when inhaled may cause a deadly form of pneumonia.

Why should we care?

  • Many cooling towers are located at ground level.
  • Legionella from ground level cooling towers have been the source for deaths from Legionnaires disease.
  • Elementary, Middle, High Schools, commercial office buildings and hospitals can have ground level cooling towers.
  • If chemical control methods are used then these chemicals are escaping into the surrounding area through drift.
  • This presents a potential health hazard to the public and a legal liability to the owners and operators of towers.

From the CDC Legionella Tool Kit

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