AquaSentinel monitors the health of algae in surface waters to detect chemical toxins

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For me, one of the most fascinating areas in cleantech is technology for monitoring and protecting the quality of municipal water supplies. This has been, of course, an increasingly pressing security challenge since the Sept. 11, 2001, terrorist attacks for the approximately 16,000 public water utilities and 25,000 wastewater treatment plants across the United States.

By: By  for ZDnet

Accordingly, water security is the focus of a start-up that was recognized as an innovator by IBM at its recent SmartCamp technology conference in Austin, Texas. That company,SecureWaters, has created a system called AquaSentinel that continuously monitors and tests for chemical toxins in water supplies. It does this by closely monitoring the fluorescence of local algae and establishing a baseline. Deviations from that baseline are indicators of toxins in the water. Readings are taken every minute-and-a-half by sensor nets (with anywhere from 100 to 500 sensors) strategically placed at the inlets or outlets for bodies of water.

Read original story from ZDnet here.