TABLE 1:
Average agrochemical concentrations in soils and frog tissues (in ppm ± standard error)
| Soil | Tissue w/depuration | Tissue wo/depuration | |||||
|---|---|---|---|---|---|---|---|
|
|
|
|
|||||
| Treatment | Atrazine | Alachlor | Urea-N | Atrazine | Alachlor | Atrazine | Alachlor |
|
| |||||||
| C | ND | ND | 0.3±0.1 | ND | ND | ND | ND |
| Z | 12.7±1.1 | NA | NA | 0.6±0.1 | NA | 3.9±1.6 | NA |
| L | NA | 16.1±1.6 | NA | NA | 1.6±0.3 | NA | 2.3±1.0 |
| N | NA | NA | 1130.4±78.4 | NA | NA | NA | NA |
| ZL | 9.1±0.9 | 15.2±1.1 | NA | 0.6±0.2 | 2.6±0.7 | 3.5±1.3 | 4.6±1.6 |
| ZN | 8.6±0.3 | NA | 922.8±81.4 | 1.0±0.4 | NA | 1.3±0.5 | NA |
| LN | NA | 19.2±1.9 | 854.6±80.4 | NA | 1.7±0.3 | NA | 2.2±0.6 |
| ZLN | 10.4±1.2 | 15.2±1.6 | 931.8±62.3 | 1.5±0.5 | 2.9±0.8 | 3.7±1.4 | 4.4±2.0 |
C=control; Z=atrazine; L=alachlor; N=urea; ND=not detected or below instrument detecti detection limit; NA=not analyzed; Tissue w/depuration=frogs depurated for 1-h corticosterone collection; Tissue wo/depuration=frogs not depurated.