Environmental issues in Kazakhstan at the Semipalatinsk nuclear testing facility (in fact a large zone south of Kourchatov (Курчатов)) and along the Chinese border. The Central Asian Regional Environmental Center is located in Kazakhstan, which fosters regional cooperation on environmental issues. Most of Kazakhstan’s water supply has been polluted by industrial and agricultural runoff and, in some places, radioactivity. The Aral Sea, which is shared with Uzbekistan, has shrunk to three separate bodies of water because of water drawdowns in its tributary rivers. A Soviet-era biological weapons site is a threat because it is located on a former island in the Aral Sea that
Seto Inland Sea Channel, which in turn connects to the Pacific Ocean. The western part of the Seto Inland Sea connects to the Sea of Japan through the Kanmon Straits and to the Pacific through the Bungo Channel. Each part of the Seto Inland Sea has a separate name in Japanese. For example, refers to the strait between Ehime, Yamaguchi, and Ōita prefectures in the western portion of the sea; is the open expanse west of the Geiyo Islands, near Hiroshima prefecture; and refers to the expanse between Yamaguchi prefecture and Suō-Ōshima. There are also many straits located between the major islands, as