The front edge of benzene slick is expected to approach Bogorodskoye village in Khabarovsk region, 238 km from the Amur river outlet, on Monday. The press-service of Russian Emergency Ministry Far East regional Center informs that the spread of the slick is over 200 hundred km. Since January 13 in Bogorodskoye water sampling and nitrobenzene analysis every six hours are organized. By the time being no nitrobenzene content detected in the samples. Totally, 1.889 samples have been taken from the Amur river since the start of monitoring. In Khabarovsk, Komsomolsk-on-Amur and Amursk, having water supply point on the Amur river, additional water treatment is being performed with the help of activated carbon. Drinking water, delivered to the net, fully complies with the hygiene standards. Since December fishing in the Amur river has been prohibited. Five mobile groups formed of fishing inspectors and Ministry of Internal Affairs patrol the river in order to prevent fishing. Benzene slick has appeared as a result of explosion on the Chinese chemical plant on November 13, 2005. About 100 tons of toxic substance leaked in to the Shonguah river, flowing into the Amur river.