Updated recipient model

Allows the calculation of acceptable load and required treatment from dissolved or bioavailable concentrations of the substances for which guideline values ​​for these are specified in these fractions *.

– Calculation of dissolved or bioavailable recipient concentrations as an option, with the input of dissolved or bioavailable fractions.
– Input of dissolved or bioavailable measured recipient concentrations as an option.
– Added recipient criteria concentrations for As.
– Updated references for the recipient criteria.

*) Previously, and still as default, these loads are calculated on the basis of total fractions for all substances, giving a margin of substances whose guidance values ​​are expressed as dissolved or bioavailable fractions.
Now it is possible to calculate these loads from the same fractions as the benchmarks relate to.