A K LEO
MONDAY, OCT. 17 to TUESDAY, OCT. 18, 2011 VOLUME 106 ISSUE 36
Serving the students of the University of Hawai‘i at Mānoa.
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NEWS
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DEALING WITH CLIMATE CHANGE
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NIK SEU/KA LEO O HAWAI‘I
The microbiology department confirmed that Krauss Pond is now discolored by cyanobacterial growth. M AT T SYLVA Columnist
Two University of Hawai‘i at Mānoa faculty members have stated that the discoloration of Krauss Hall Pond did not result from organic dye deposited by vandals, as the Environmental Health and Safety Offi ce previously claimed. “I believe that the assessment by the Environmental Health and
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COURTESY OF MASAO MIYAMOTO/MIYAMOTO PHOTOGRAPHY COLLECTION/ARCHIVES AND MANUSCRIPTS DEPARTMENT/UNIVERSITY OF HAWAI‘I AT MĀNOA
INFLATION
The Agronomy Department’s annual “Pignic” lu‘āu at the PRI courtyard pond in 1972 was held in a two-story wing of Krauss Hall that was demolished in 1982 to build a drainage system. A low lava-rock wall replaced the structure.
Safety Office for the green color in the pond is false,” wrote physics professor Klaus Sattler in an email to Ka Leo. “The green color is not due to paint, but to blue-green algae bloom, cyanobacteria.” Sattler’s research into algal buildup prompted him to take an interest in the pond. In an Oct. 12 meeting with Ka Leo reporter Matt Sylva, Sattler collected a water sample from the surface of the pond to take back to his labo-
ratory. The collected water was poured through a funnel lined with fi lter paper into a beaker. As the water fi ltered through the paper, it came out clear, with no traces of green. The process was then repeated with a water sample dyed with Malachite Green, a blue-green organic dye in powder form. The dyed water fi ltered through blue. Sattler also tried samples of settled Krauss Pond water. The green
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substance gathered on the surface of the filter paper for all of the pond water samples; the dyed water remained evenly colored, even after passing through the filter. This is consistent with Sattler’s belief that the green substance is actually a strain of cyanobacteria, and his fi nding has been confi rmed by the Department of Microbiology.
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See Krauss timeline, page 3
Report
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