Table 1.
Steroid hormones concentration and estrogenic activity.
| SAMPLING SITE | CONCENTRATION (ng/L) |
ESTROGENIC ACTIVITY (EEQ-ng/L) |
|||||||
|---|---|---|---|---|---|---|---|---|---|
| E1 | E2 | E3 | EE2 | DHT | T | P | 17OHP | MEAN ± SE | |
| WWTPO | 85,15 | 4,72 | 384,43 | 64,24 | 33,32 | 16,39 | 12,73 | 6,85 | 151 ± 114 |
| E200 | 56,11 | 7,06 | 176,48 | 47,55 | 16,59 | 5,61 | 5,64 | 5,64 | 39.1 ± 34.1 |
| U300 | 1,54 | 0,94 | 0,40 | 0,00 | 1,13 | 2,89 | 7,52 | 0,45 | 7.54 ± 5.10 |
| U600 | 1,65 | 1,01 | 0,48 | 0,00 | 1,29 | 1,46 | 5,72 | 0,32 | 4.85 ± 4.08 |
| U1500 | 1,71 | 2,90 | 0,94 | 0,00 | 5,70 | 2,28 | 7,50 | 0,50 | 7.24 ± 5.96 |
| D3000 | 13,73 | 2,68 | 12,82 | 3,18 | 1,34 | 1,78 | 2,55 | 2,94 | 8.60 ± 6.46 |
| D4500 | 2,65 | 2,02 | 1,91 | 0,00 | 1,16 | 2,32 | 3,62 | 0,00 | 7.19 ± 6.28 |
Sampling sites of grab sampled of Wastewater Treatment Plant Outfall (WWTPO); 200 m from WWTPO (E200); downstream at 3000 m from WWTPO (D3000); downstream, in the Adela lake, at 4500 m from WWTPO (D4500); upstream at 300 m from WWTPO (U300); upstream at 600 m from WWTPO (U600) and upstream, in the Chascomús lake, at 1500 m from WWTPO (U1500). Estrogenic activities are expressed as equivalent concentration of E2 (EEQ) of the mean and the standard deviation (MEAN ± SE) of three replicate analytical samples.