The technique firstly requires the allocation of a weighting value
(in this case from 1 to 10) to criteria deemed relevant to determining
expected anthropogenic pressure. Then, an ordinal scale is
created (in this case from 1 to 5) for each criterion to reflect relative
importance to the level of pollution (Table 1). A higher score
for both the weighting and criteria in dicates greater importancein determining expected anthropogenic pressure. Then, a relative
expected level of anthropogenic pressure is calculated (Table 2)
by the formula: