The impact of point (domestic and industrial effluents) and non-point (agricultural land runoff) pollution sources on the quality of the receiving waters of the Evrotas River (Laconia, Greece) was investigated during a monitoring study from August 1991 to August 1992. The part of the river which was located near the city of Sparta was seasonally influenced by the discharge of effluents from orange juice plants (operating during winter) and by the discharge of septage for the emptying of cesspools which are serving part of the city. The low dilution of incoming pollutants (septage) during the low water flow in summer lead to the decreasing self-purification capacity of the river and the development of septicity conditions in some of its parts. In the vicinity of intensively cultivated areas, the high concentrations of nitrogen and phosphorus which were detected in the river water during winter and spring may be partly attributed to the leaching of the applied fertilizers because of nirogen mobilization and soil erosion, following the season's precipitations. The protection of the Evrotas River water Quality must therefore include adequate treatment of the septage produced in the area, as well as the construction of wastewater treatment plants for the major industries of the area. The non-point pollution could be controlled by the restoration of the Evrotas riparian vegetation, together with a more rational use of fertilizers in the area.
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Agricultural Association of Laconia, 1992, Use of fertilizers and pesticides in the Laconia basin (personal communications).
APHA, AWWA, WPCF: 1985,Standard Methods for the Examination of Water and Wastewater, 16th edn., American Public Health Association, Washington D. C.
Bergstrom, L.: 1987, ‘Nitrate Leaching and Drainage From Annual and Perrenial Crops in Tile-Drained Plots and Lysimeters,J. Environm. Quality 16, 11–18.
Boon, P. J.: 1992, ‘Essential Elements in the Case for River Conservation’, in: Boon, P. J., Calow, P. Petts, G. E., (Eds),River Conservation and Management John Wiley, Chichester, pp. 11–33.
Commission of the European Communities: 1975, Council Directive 75/440/EEC, On the Necessary Quality of Surface Waters for the Production of Drinking Water in the Member States’.
DEYAS: 1993, ‘Environmental Protection and Development Programme of the Evrotas River Basin and the Northern Coast of Laconian Bay,Final Report, Programme MEDSPA 90, Commission of the European Communities (DG XI).
Esser, G. and Kohlmaier, G. H.: 1991, ‘Modelling Terrestrial Sources of Nitrogen, Phosphorus, Sulphur and Organic Carbon to Rivers, in: Degens, E. T., Kempe, S. and Richey, J. E., (Eds.)Biogeochemistry of Major World Rivers, SCOPE 42, 169–211, John Wiley, Chichester.
Gardiner, J. L. (Ed): 1991,River Projects and Conservation: A Manual for Holistic Appraisal, John Wiley, Chichester.
Groffman, P. M., House, G. J., Hendrix, P. F., Scott, D. E. and Crossley, D. A- Jr.: 1986, ‘Nitrogen Cycling as Affected by Interactions of Components in a Georgia Piedmont Agroecosytem’,Ecology 67, 80–87.
Jaakola, A.: 1984: ‘Leaching Losses of Nitrogen From a Clay Soil under Grass and Cereal crops in Finland’,Plant and Soil 76, 59–66.
Jackson, W. A., Asmussen, L. E., Hauser, E. W. and White, A. W.: 1973, ‘Nitrate in Surface and Subsurface Flow From a Small Agricultural Watershed’,J. of Environ. Quality 2, 480–482.
Kempe, S., Pettine, M. and Cauwet, G.: 1991, Biogeochemistry of European Rivers’, in: Degens, E. T., Kempe, S. and Richey, J. E. (Eds.),Biogeochemistry of Major World Rivers, SCOPE 42, 169–211, John Wiley, Chichester.
Lowrance, R. R., Todd, R. T., Fail, J. Hendrickson, O. Leonard, R. and Asmussen, L.: 1984, ‘Riparian Forest as Nutrient Filters in Agricultural Watersheds’,BioScience 34, 374–377.
Mellquist, P.: 1992, ‘River Management — Objectives and Applications’, in: Boon, P. J. Calow, P. and Petts, G. E. (Eds.)River Conservation and Management. John Wiley, Chichester, pp. 1–10.
Meybeck, M., Chapman, D. and Helmer, R.: 1989,Global Freshwater Quality. A First Assessment, Basil Blackwell, Oxford.
Ministry of the Environment, Denmark: 1991,Environmental Impacts of Nutrient Emissions in Denmark, Ministry of the Environment of Denmark.
National Bank of Inustrial Development, Greece: 1993,Inventory of the Municipal Wastewater Treatment Plants in Greece, Final report (in Greek).
Newson, M.: 1992,Land, Water and Development, Routledge, London.
National Meteorology Service of Greece: 1993,Meteorology Data of the City of Sparta (in Greek).
National Statistics Service of Greece: 1991,Census of the Population in Greece (in Greek).
Owens, M.: 1970, ‘Nutrient Balance in Rivers’,Water Treat. Exam. 19, 239–247.
Petersen, R. C., Petersen, B.-M. and Lacoursiere, J.: 1992, ‘A Building-block Model for Stream Restoration’, in: Boon, P. J., Calow, P. and Petts, G. E. (Eds)River Conservation and Management, John Wiley, Chichester, pp. 293–309.
Pinay, G. and Decamps, H.: 1988, ‘The Role of Riparian Woods in Regulating Nitrogen Fluxes Between the Alluvial Aquifer and Surface Water: A Conceptual Model’,Regulated Rivers: Research and Management 2, 507–516.
Prefecture of Laconia, Greece: 1993,Data on the Hydrology of the river Evrotas and Data on the Agriculture in the Prefecture of Laconia, (in Greek).
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Angelidis, M.O., Markantonatos, P.G. & Bacalis, N.C. Impact of human activities on the quality of river water: The case of Evrotas River catchment basin, Greece. Environ Monit Assess 35, 137–153 (1995). https://doi.org/10.1007/BF00633711
- Wastewater Treatment
- River Water
- Soil Erosion
- Wastewater Treatment Plant
- Orange Juice