Press Release

Expansion of the Observation Area of Pollen Observation System (Hanakosan)

March 31, 2008

The Ministry of the Environment (MOE) has been operating a pollen observation system (called Hanakosan) since FY 2002 for the alleviation of pollinosis. This system makes it possible to check pollen diffusion in real time. The MOE recently installed automatic pollen monitors in Hokkaido and Tohoku regions as well as for Niigata Prefecture. Results of the observation will be available on the Hanakosan website ( from April 1, 2008 (Japanese only)s

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