Open Access
Tableau IV
Paramètres d’ajustement et équations utilisées pour estimer les flux nets annuels de cadmium dissous pour les quatre dernières décennies.
Fitting parameters and mathematical functions used to estimate the values of the annual net Cdd fluxes over the last earlier decades.
| Décennie | 1980 – 1990 | 1990 – 2000 | 2000 – 2010 | 2010 – 2016 |
|---|---|---|---|---|
| Equation | y = a*exp(b*(x−u)) + c*exp(d*(x−u)) + v | y = a*exp(b*x) + c*exp(d*x) | y = a*exp(b*x) + c*exp(d*x) | y = a*exp(b*x) + c*exp(d*x) |
| Cdd0 max | 1070 | 573 | 490 | 217 |
| a | 136200 | 86870 | 1306 | 445,1 |
| b | −1,50 E-02 | −1,40 E-02 | −6,01 E-03 | −8,77 E-03 |
| c | 203,1 | 201 | 121,1 | 98,07 |
| d | 2,79 E-05 | 3,26 E-05 | 7,59 E-06 | −1,47 E-04 |
| u | 300 | – | – | – |
| v | 250 | – | – | – |
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