Fig. 2From: Dilution or enrichment: the effects of flood on pollutants in urban riversConcentrations of total phosphorus (TP) (a), total nitrogen (TN) (b), chemical oxygen demand (COD) (c) in surface water and in sediments (d: TP; e: TN and f: TC) from each sampling site of Qingshui Stream before (BF) during (DF) and after the flood (AF). n = 3Back to article page