DAGVATTNETS EFFEKTER PÅ VÄXJÖSJÖN / The Effects of Storm Water on Lake Växjösjön
The aim of the present study was to determine the pollution load originating from storm water on Lake Växjösjön. Each year about 1,050,000 m3 of storm water are discharged into the lake. Storm water represents a substantial pollution source for the lake and therefore also a main reason for the hypertrophic conditions in the lake. In order to evaluate the effects of the discharged storm water on the ecological conditions in the lake, an investigation was carried out using available information on storm water quality together with complementary sampling and flow measurements. Two different time scales were considered to be important: a short time scale for evaluating effects on the receiving waters due to shock loads of toxic substances (hours and days) and a long time scale for evaluating the effects of nutrients (years). In order to investigate effects concerning the short time scale, a computer-based runoff model was used. “Complete abstract not presented.”