Flows and water quality parameters of domestic and industrial waste from shrimp farms (as a function of production density) and in the open boundary
| Location . | Period . | Flows (L/s) . | BOD (mg/L) . | DO (mg/L) . | DOP (mg/L) . | DIP (mg/L) . | DON (mg/L) . | NH3 (mg/L) . | NO3 (mg/L) . | Chl-a (μg/L) . |
|---|---|---|---|---|---|---|---|---|---|---|
| Quintas (STP) | Morning | 11.45 | 28.55 | 0.00 | 0.70 | 1.30 | 13.22 | 20.34 | 0.34 | 500 |
| Afternoon | 171.13 | 0.00 | 0.93 | 1.72 | 11.95 | 18.39 | 0.31 | 500 | ||
| Jardim Lola I (STP) | Morning | 7.80 | 180.00 | 0.00 | 0.70 | 1.30 | 9.11 | 14.01 | 0.23 | 500 |
| Afternoon | 60.00 | 0.00 | 0.75 | 1.40 | 7.55 | 11.62 | 0.19 | 500 | ||
| Jardim Lola II (STP) | Morning | 8.04 | 180.00 | 0.00 | 0.89 | 1.66 | 12.46 | 19.17 | 0.32 | 500 |
| Afternoon | 90.00 | 0.00 | 0.78 | 1.44 | 11.44 | 17.6 | 0.29 | 500 | ||
| Amarante (STP) | Morning | 16.98 | 120.00 | 0.00 | 0.89 | 1.65 | 17.36 | 26.71 | 0.45 | 500 |
| Afternoon | 36.00 | 0.00 | 0.78 | 1.44 | 0.01 | 0.01 | 0.00 | 500 | ||
| Aerada (STP) | Morning | 179.05 | 231.00 | 0.00 | 1.98 | 3.68 | 31.55 | 48.54 | 0.81 | 500 |
| Afternoon | 110.40 | 0.00 | 1.98 | 3.68 | 32.95 | 50.7 | 0.84 | 500 | ||
| Baldo (STP) | Morning | 0.40 | 180.00 | 0.00 | 1.27 | 2.36 | 23.22 | 35.72 | 0.6 | 500 |
| Afternoon | 75.00 | 0.00 | 0.84 | 1.57 | 13.49 | 20.75 | 0.35 | 500 | ||
| Beira Rio (STP) | 3.42 | 13.80 | 0.00 | 0.65 | 1.21 | 15.81 | 24.33 | 0.41 | 500 | |
| Im. Potiguar (STP) | 0.90 | 71.42 | 0.00 | 3.54 | 6.57 | 45.83 | 70.51 | 1.18 | 500 | |
| Industrial Center (STP) | 10.08 | 117.33 | 0.00 | 0.09 | 0.17 | 5.01 | 7.71 | 0.13 | 500 | |
| Extensive shrimp farms | Var. | 8.00 | 6.00 | 0.02 | 0.04 | 0.11 | 0.03 | 0.01 | 10 | |
| Semi-extensive shrimp farms | Var. | 10.00 | 11.00 | 0.04 | 0.09 | 1.43 | 0.43 | 0.18 | 10 | |
| Semi-intensive shrimp farms | Var. | 10.00 | 11.00 | 0.05 | 0.11 | 1.83 | 0.55 | 0.24 | 10 | |
| Intensive shrimp farms | Var. | 10.00 | 9.00 | 0.10 | 0.23 | 1.92 | 0.58 | 0.25 | 10 | |
| Doce River | 2.00 | 3.41 | 6.48 | 0.0105 | 0.0195 | 1.199 | 0.014 | 0.50 | 0.01 | |
| Baldo Stream | 0.10 | 4.98 | 3.55 | 0.02 | 0.04 | 0.02 | 0.04 | 0.00 | 0.01 | |
| Open boundary | 5.00 | 6.50 | 0.005 | 0.015 | 0.08 | 0.001 | 0.025 | 1.00 | ||
| Location . | Period . | Flows (L/s) . | BOD (mg/L) . | DO (mg/L) . | DOP (mg/L) . | DIP (mg/L) . | DON (mg/L) . | NH3 (mg/L) . | NO3 (mg/L) . | Chl-a (μg/L) . |
|---|---|---|---|---|---|---|---|---|---|---|
| Quintas (STP) | Morning | 11.45 | 28.55 | 0.00 | 0.70 | 1.30 | 13.22 | 20.34 | 0.34 | 500 |
| Afternoon | 171.13 | 0.00 | 0.93 | 1.72 | 11.95 | 18.39 | 0.31 | 500 | ||
| Jardim Lola I (STP) | Morning | 7.80 | 180.00 | 0.00 | 0.70 | 1.30 | 9.11 | 14.01 | 0.23 | 500 |
| Afternoon | 60.00 | 0.00 | 0.75 | 1.40 | 7.55 | 11.62 | 0.19 | 500 | ||
| Jardim Lola II (STP) | Morning | 8.04 | 180.00 | 0.00 | 0.89 | 1.66 | 12.46 | 19.17 | 0.32 | 500 |
| Afternoon | 90.00 | 0.00 | 0.78 | 1.44 | 11.44 | 17.6 | 0.29 | 500 | ||
| Amarante (STP) | Morning | 16.98 | 120.00 | 0.00 | 0.89 | 1.65 | 17.36 | 26.71 | 0.45 | 500 |
| Afternoon | 36.00 | 0.00 | 0.78 | 1.44 | 0.01 | 0.01 | 0.00 | 500 | ||
| Aerada (STP) | Morning | 179.05 | 231.00 | 0.00 | 1.98 | 3.68 | 31.55 | 48.54 | 0.81 | 500 |
| Afternoon | 110.40 | 0.00 | 1.98 | 3.68 | 32.95 | 50.7 | 0.84 | 500 | ||
| Baldo (STP) | Morning | 0.40 | 180.00 | 0.00 | 1.27 | 2.36 | 23.22 | 35.72 | 0.6 | 500 |
| Afternoon | 75.00 | 0.00 | 0.84 | 1.57 | 13.49 | 20.75 | 0.35 | 500 | ||
| Beira Rio (STP) | 3.42 | 13.80 | 0.00 | 0.65 | 1.21 | 15.81 | 24.33 | 0.41 | 500 | |
| Im. Potiguar (STP) | 0.90 | 71.42 | 0.00 | 3.54 | 6.57 | 45.83 | 70.51 | 1.18 | 500 | |
| Industrial Center (STP) | 10.08 | 117.33 | 0.00 | 0.09 | 0.17 | 5.01 | 7.71 | 0.13 | 500 | |
| Extensive shrimp farms | Var. | 8.00 | 6.00 | 0.02 | 0.04 | 0.11 | 0.03 | 0.01 | 10 | |
| Semi-extensive shrimp farms | Var. | 10.00 | 11.00 | 0.04 | 0.09 | 1.43 | 0.43 | 0.18 | 10 | |
| Semi-intensive shrimp farms | Var. | 10.00 | 11.00 | 0.05 | 0.11 | 1.83 | 0.55 | 0.24 | 10 | |
| Intensive shrimp farms | Var. | 10.00 | 9.00 | 0.10 | 0.23 | 1.92 | 0.58 | 0.25 | 10 | |
| Doce River | 2.00 | 3.41 | 6.48 | 0.0105 | 0.0195 | 1.199 | 0.014 | 0.50 | 0.01 | |
| Baldo Stream | 0.10 | 4.98 | 3.55 | 0.02 | 0.04 | 0.02 | 0.04 | 0.00 | 0.01 | |
| Open boundary | 5.00 | 6.50 | 0.005 | 0.015 | 0.08 | 0.001 | 0.025 | 1.00 | ||