Fig. 2
From: Screening of organic micropollutants in raw and drinking water in the Yangtze River Delta, China
a Total number of compounds detected above MDL in raw and drinking (finished) water at the different sites. Su Tai shows the average (and error bars) of samples from N1 and N2 (n = 6: 2 sites, 2 sampling occasions and 1 duplicate sample), while other bars show the result from n = 1. b The fraction of the number of detected compounds (in relation to total) is shown on a compound category basis for each site. Compounds detected above MDL and their concentrations are given in Table S4 in Additional file 1. RN river network