Biochar Needed: The total amount of biochar needed in tonnes.

Biochar Cost: The expected total cost in € for the needed amount of biochar of the selected type.

CO₂ emission reduction: This adjusts the tonnes of biochar by the correction rate for the application as a filtration material. If we assume that the water contains contaminants such as heavy metals and hydrocarbons, the contaminated char will have to be re-pyrolysed before being used in construction materials. Therefore 85.5% of the carbon will remain after 100 years (x 3.67 which gives the mass of CO₂ emissions avoided