http://manoa.hawaii.edu/news/article.php?aId=4292Experts say virtually no threat to Hawaii from Japan nuclear radiation
University of Hawaiʻi at Mānoa
Contact:
Cindy Knapman, (808) 956-7410
Posted: Mar. 18, 2011
According to experts from the University of Hawai‘i at Mānoa’s Department of Meteorology, the risks to Hawai‘i from the situation at Japan’s Fukushima nuclear plant are extremely negligible.
Dr. Thomas Schroeder, director of the Joint Institute for Marine and Atmospheric Research, and professor Steven Businger of the Department of Meteorology, lead scientist for the modeling of vog dispersion from Kilauea Volcano, explained that there are several factors keeping Hawai‘i safe from this potential threat.
First, they explained, based on reliable sources (including a number readily available by internet searches), the highest altitude of the plume of radiation is no higher than 5,000 feet. The low-level winds from Japan (latitude 38 degrees north) show no particle tracks aimed near Hawai‘i. Also, they noted, there has been confusion surrounding comments about jet stream transport of the nuclear particles, however, this event is occurring at low elevations. The jet stream is not a factor in the current situation.
In addition, the wide geographic distance between Hawai‘i and Japan is a very important factor. Dr. Schroeder noted, “According to dispersion models, any radiation from the plume will be dispersed into a very wide area, and as it diffuses and spreads the concentrations become lower and lower. As it is diffusing and spreading over the Pacific Ocean, the rain is also another benefit, which helps to cleanse the radiation out of the atmosphere.”
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