A small brook runs right by the west side of Osato laboratory Ltd..　We think it is our duty as one of local enterprises in this area not to pollute the nearby brook, and to conserve our natural environment for future.
Then, in 2009, we started the project to create environment where fireflies can live, that is an index of the water pollution level

＜The brook on the west side＞

Purpose of activity: Conservation of water quality environment and biodiversity by creating environment where fireflies can live
Details of activity: 　Cleaning of the brook once a month
Arranging stones to create harboring places for firefly's larvae
Conducting a water quality inspection once a year

＜Cleaning of the brook＞

We continue this activity expecting that we will be able to observe lots of gleaming fireflies.
The activities will be updated on this website.

・ May 26th : We cleaned the brook. Click here for details.

・ June 15th : We conducted a water quality inspection. Click here for details.