Status of water use and water quality in the Khanka Lake basin. L.V. GORBATENKO
Keywords:
Khanka Lake, water use, polluting substances, water-intensive industries, sewage treatment efficiency, sewage pollution index, river's self-cleaning ability, water quality, permissible concentrations, human activityAbstract
Status of water use and water quality in the Khanka Lake basin. L.V. GORBATENKO (Pacific Geographical
Institute, FEB RAS, Vladivostok).
At the level of municipal territories a comprehensive assessment of water use in the Khanka Lake basin, including point sources of polluting substances discharge by water use industrial enterprises, has been conducted. The composition of sewage with an indication of distinctive pollutants for every territory and industrial sector is analyzed. Watercourses for which the volumes of pollutants discharges are the largest are identified. The most polluted of them over the many years are shown to be the small rivers with low self-cleaning capability. The modern and retrospective features of the river water quality in the Khanka Lake basin are analyzed, and the dynamics of the quality of some watercourses using calculated pollution indices is estimated.