Table 2.

Modeled influent, effluent concentrations and removal efficiency for 10 sterols. Removals calculated at POTWs were obtained from Furtula et al. (2011).

Compound	Concentration in influent (ng L^-1)			Concentration in effluent (ng L^-1)

	C_influent (Min)	C_influent (Max)	C_influent (Mean)	C_eff (Min)	C_eff (Max)	C_eff (Mean)	% Removal Predicted	% Removl Observed
Desmosterol	5.35E+02	2.27E+04	3.56E+03	0.163	6.9	1.1	99.9	93.1
Ergosterol	5.23E+02	2.21E+04	4.82E+03	0.149	6.3	1.4	99.9	-
Cholesterol	5.62E+02	1.29E+06	1.75E+05	0.077	176.3	23.8	99.9	98.7
Campesterol	6.82E+02	1.26E+05	2.34E+04	0.041	7.7	1.4	99.9	98
Coprostanol	1.85E+03	1.05E+07	6.71E+05	0.092	519	33.2	99.9	99.1
Epicoprostanol	2.08E+02	7.82E+05	1.06E+05	0.01	71.6	9.7	99.9	94.3
β-Stigmastanol	8.26E+02	3.19E+05	3.67E+04	0.04	15.4	1.8	99.9	96.7
Cholestanol	9.26E+02	1.10E+06	1.14E+05	0.045	53.3	5.5	99.9	98.7
Stigmasterol	1.09E+02	1.93E+05	2.90E+04	0.005	9.4	1.4	99.9	86.4
β-Sitosterol	2.90E+02	3.94E+05	7.25E+04	0.003	4.2	0.8	99.9	97.7