As press-service of Habarovsky regional administration informed, regional committee over emergency situations will cancel state of increased alertness in Habarovsk on Thursday. Quality of drinking water, supplied to population, meets the hygienic norms. Dominate role played the double water refinement with activated coal. It is expected that pollution zone will reach Amursk town on January 2-3. Groups for taking necessary water samples have already departed to the place, was noted in press-service. Staff of regional committee over emergency situations has moved to Komsomolsk-na-Amure, where it will control the situation of benzene spot moving along Amur. In opinion of regional state vice-chairman Vladimir Popov there are still lots of work to do: content of ice and quality of fish should be carefully examined, damage to be estimated. "There are enough reserves of delivered to Habarovsk activated coal till autumn of 2006. After that it is planned to buy powder coal", - was noted in press-service. Chemical substances have got to Amur as a result of crash at chemical plant in China. Major part of pollution has passed Habarovsk. Concentration of nitrobenzene in Amur didn`t exceed maximum allowable concentration.