Analysis of steroid hormones and their conjugated forms in water and urine by on-line solid-phase extraction coupled to liquid chromatography tandem mass spectrometry

Table 4 Concentrations of the selected estrogens in the water samples analysed in ng L⁻¹

Estrogens	Drinking water (UdeM)	Repentigny		St Lawrence river (Delson)	St Lawrence river (repentigny)	Prairie river	Thousand island river
Estrogens	Drinking water (UdeM)	Wastewater	Effluent	St Lawrence river (Delson)	St Lawrence river (repentigny)	Prairie river	Thousand island river
E3-3S	<7.1	<41	<6.3	<6.3	<6.3	<6.3	<6.3
E2-17G	<14	<42	<21	<21	<21	<21	<21
E2-17S	<4.7	<28	<3.3	<3.3	<3.3	<3.3	<3.3
E1-3S	<4.6	<76	<27	<27	<27	<27	<27
E2-3S	<3.4	<13	<5.3	<5.3	<5.3	<5.3	<5.3
E3	<3.6	<52	<10	<10	<10	<10	<10
E2	<6.1	<14	<9.5	<9.5	<9.5	<9.5	<9.5
E1	<13	<26	<9.7	<9.7	<9.7	<9.7	<9.7
EE2	<7.2	<62	<25	<25	<25	<25	<25

ISSN: 2661-801X