Fig. 2

A, B and C Total sample cost as a function of the equipment usage intensity for middle wage European countries. Total sample analysis cost can be deduced as a function of the number of analysed batches of five seawater samples per year (equipment usage intensity), and this for each of the six method categories. On the graph in A, total cost for a low equipment usage intensity of 10–50 batches/year is shown, on the graph in B total cost for a middle equipment usage intensity of 50–100 batches/year, and for the graph in C total cost for a high equipment usage intensity of 100–200 batches/year. These graphs represent costs for European countries with a gross national income per capita (GNI p.c.) between 29,620 EUR and 52,681 EUR, as defined by the World Bank