Researches Of The Water Quality Condition Of YaLu River (DanDong Sect)

As the main River in DanDong, YaLu river undertake many functions such as watersupply,fishery,scenery, It is an important constituting part of DanDong and LiaoNing'sEcological environment, at the same time YaLu river is the only one in LiaoNing's six bigwater systems whose water quality is better and pollution condition is not so heavy. So thedenotation of protecting YaLu river's water quality is magnitude.Through carrying out investigation on YaLu river's pollution condition and mainpollution, selection the source of pollution, monitoring water environment of this valley,making a whole evaluation to water condition, This article want to find out the importantwater quality element that is watchful, to foresee the develop tendency of water quality, to doany basis for forecast and manage the pollution of YaLu river water system. At the same timegiving out managing countermeasure according to the analysis.This researches of this article make out the transformation course of late years of YaLuriver, It did a whole research of the main and tributary of YaLu river, It considered each aspectelements, Made out the following conclusion:These years theMainstream of YaLu river's water condition was ameliorating, It's water system's pollutioncondition is relatively not important, and It's water condition is better. But due to the exist ofthe industry such as paper making and cotton spining, The COD of YaLu river'sdownstream is relatively high. This should arouse borad recognition of every aspects. At thesame time any of is tributary's water condition is worse, this should be ameliorated.