Notice of RetractionEcological Effects of Stormwater Runoff on Urban Eutrophic Rivers during Flood Season in Chaohu City

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.

The purpose of this study is to investigate the characteristics of storm water runoff during flood season and its effects on the phytoplankton biomass and species composition in eutrophic urban rivers of Chaohu City, China. Rain water and runoff samples from different road types were collected and phytoplankton was monitored in the receiving urban rivers during observation periods. The results showed that TN and TP were the major pollutants from surface runoff and the chemical characteristics and first flush effect of stormwater runoff were closely related to the road types. Average TP concentration remained unchanged (0.65 mg/L) and average COD_Cr and TN concentrations increased by 4.5% and 74.2%, respectively after the rainfall events, while average NH₄-N concentration had a decreasing of 25.7% in the receiving river. Phytoplankton biomass decreased sharply after the rainfall events and had a increasing within the next few days. The blues and greens might be the sensitive algal affected by rainfall events and varied significantly after heavy rains. The results indicated that rainfall and runoff had a significant impact on water quality, phytoplankton biomass and its species composition in urban rivers. However, it is found that a quantitative relationship between phytoplankton and rainfall magnitude is hard to be established due to many other environmental factors.