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Information Sources and Methodology
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4.1. Information Sources and Methodology
The Hot Spots were identified and screened on the basis of available information on pollution sources located within the Ukrainian part of the Dnipro Basin. The main information sources were:
1. Ukraine’s official statistic reporting data (2TP-VodKhoz) for the period of 1990, 1991, 1999 and 2000;
2. National State of the Environment Reports;
3. Information bulletins;
4. Research and technical reports prepared by the USRIEP Institute;
5. Field Survey Reports on assessment of the ecological state of transboundary sections of the Dnipro Basin;
6. The Dnipro Basin Transboundary Diagnostic Analysis (TDA);
7. The Book of Statistics “Environment in Ukraine”, source: the State Committee of Statistics of Ukraine.
The methodology used for the preliminary screening of Hot Spots is described below:
1. Preliminary screening of Hot Spots was carried out on the basis of the state statistic reporting data (2TP-VodKhoz) for the period of 1990, 1991, 1999 and 2000, covering all reporting industries located in the Dnipro Basin.
2. In stage one, 510 of 903 industries discharging their effluents into surface water bodies were selected, accounting for 57.85% of the total volume of effluent discharges in the Dnipro Basin.
3. Official statistical reporting data for the 510 sites was further used to calculate the “effective mass of contaminant” for a discharge where multiple contaminants may be present. The calculation procedure also employed the Maximum Admissible Concentration (MAC) values set for water bodies designated for fishery.
4. The values of the “effective mass of contaminant” (EMC values) were used as score values for screening and ranking of selected Hot Spots.
The Hot Spots selected at this stage were further analysed and ranked using additional criteria. Ranking results are presented below. The purpose of this additional analysis was to:
- Reduce errors that may occur in a formalized evaluation exercise;
- Use additional criteria to take into account not only the mass and properties of discharged contaminants, but also their effects on the environment;
- Provide sound justification for selection and identification of a smaller number of Hot Spots that will be promoted to the next step, i.e. the feasibility assessment and preinvestment study of proposed mitigation measures.
