“…Relatively low concentrations were detected in raw sewage aqueous phase for TEP (114 ± 54 ng/L), TMP (99 ± 20 ng/L), TnBP (74 ± 12 ng/L), TiBP (45 ± 18 ng/L), TDCP (23 ± 2 ng/L), TPhP (21 ± 5 ng/L), TCrP (9 ± 5 ng/L) and EHDPP (14 ± 1 ng/L). Of all the target compounds in this study, the predominance of TBEP, TCPP and TCEP were also observed in STP wastewater in most developed countries including Spain (Rodriguez et al, 2006;Quintana and Reemtsma, 2006;Garcia-Lopez et al, 2010), Germany (Rodil et al, 2005;Meyer and Bester, 2004), Austria (MartinezCarballo et al, 2007) and Sweden (Marklund et al, 2005) (Table 2). In the present study, raw sewage aqueous phase concentrations of TBEP, TCPP and TCEP were lower than those in surface water in Beijing: 10-740 ng/L TBEP, 145-1359 ng/L TCPP, and 88.4-2918 ng/L TCEP (Gao et al, 2015), which may result from the separation of rain and sewage considering that rainwash can directly bring a plenty of OPEs from soil, dust and airborne particles into the river.…”