| Key Words |
Struma River; pollution index; intercriteria analysis; index matrices; intuitionistic fuzzy sets. |
| Abstract |
A method called Intercriteria Analysis (ICrA) is applied for analysis and assessment of pollution indices in ten station points to measure the pollution in the Bulgarian section of the Struma River. The following pollution indices have been reviewed: Temperature, pH, Dissolved oxygen, Oxygen saturation, Conductivity, BOD, Permanganate oxidation, Ammonia nitrogen, and Nitrate nitrogen of the Struma River catchment area. The application of the method showed that there is no relationship between the pollution indices (we have a dissonance) in the river catchment area for most of the investigated stations. It is necessary to develop mathematical models for the indices of pollution regarding investigated stations in which there is dissonance. For those stations where there is a partial positive consonance it is not necessary to apply the models. |
| Article PDF | Download article (PDF) |
