浑河水体中挥发酚、石油烃的空间分布及季节性变化

Spatial and Seasonal Variation of Volatile Phenol and Petroleum Hydrocarbon in Surface Water of Hunhe River

为了初步了解浑河流域有机污染状况,在浑河清原段、抚顺段和沈阳段共设置14个采样断面,分别于枯水期、平水期和丰水期三个时段进行样品采集.研究了浑河干流及主要支流水体中溶解氧、挥发酚、石油烃及大肠菌群的时空变化.研究结果显示,浑河水体中挥发酚和石油类污染物浓度都表现为枯水期>平水期>丰水期;而水体中粪大肠菌群浓度则在丰水期时最高.从上游至下游,浑河水体中挥发酚和石油烃浓度均呈现增加趋势,其中污染最严重的点位是Z5断面;而作为抚顺、沈阳地区重要的生活饮用水水源地的大伙房水库出库口断面H3,其水体中均未检测到挥发酚和石油类污染物,而且粪大肠菌群浓度也较低.

In order to find out the organic pollution condition of Hunhe River,14 sampling sites in Qingyuan section,Fushun section and Shenyang section were selected,and surface water were sampled in flood-period,level-period and drought-period,respectively.Then,the concentrations of volatile phenol,petroleum hydrocarbon and the number of fecal coliforms were analyzed to demonstrate the spatial characteristics and seasonal variation of organic pollutions in Hunhe River.Results show that the concentrations of volatile phenol and petroleum hydrocarbon in surface water of Hunhe River decreased in the order：drought-period〉level-period〉flood-period.On the contrary,the highest number of fecal coliforms in surface water of Hunhe River appeared in flood-period.Moreover,the concentrations of volatile phenol and petroleum hydrocarbon in surface water were increased from upstream to downstream,and the highest level was found in Z5 sampling site.While in the H3 site,which located in Dahuofang reservoir,volatile phenol and petroleum hydrocarbon were not detected,and the number of fecal coliforms was low.