add_Kd: Estimate Sorption Coefficient

In KWB-R/kwb.fcr: Fertilizer chemical risk assessment

Estimate Sorption Coefficient

Description

Estimation is based on the FCR prepared Monte Carlo table

Usage

add_Kd(p, sub_info)

Arguments

p	Parameter table created with oneYear_matrix(). Note: D_air variable must be available in p if K_d is estimated with linear regression.
sub_info	The table containing additional substance information loaded with read_fcr_input()

Details

Theoretically the initial concentration in soil can become negative if the pollutant concentration in fertilizes is negative. A negative concentration makes obviously no sense in a real situation. However, long-term impact is assessed, a broad concentration range of the pollutant also leads to more uncertain results. Negative concentrations in one year are averaged out. For the regression of the sorption coefficient, the concentration must be positive. Thus, negative values are increased to the concentration in top soil that would appear after one day of deposition.

Value

The Parameter table extended by a column for the sorption coefficient

KWB-R/kwb.fcr documentation built on Nov. 14, 2023, 5:17 a.m.