Rehabilitation and water quality monitoring in the Golden Horn

• Published in: Water Science & Technology Vol. 46; no. 8; pp. 29 - 36
• Main Authors: SUR, H. I, OKUS, E, SANKAYA, H. Z, ALTIOK, H, EROGLU, V, ÖZTÜRK, I
• Format: Conference Proceeding Journal Article
• Language: English
• Published: London IWA 01-01-2002; IWA Publishing
• Subjects: Animal, plant and microbial ecology; Applied ecology; Applied sciences; Biological and medical sciences; Biological contamination; Brackish; Bridges; Coliforms; Conservation of Natural Resources; Detection; Dissolved oxygen; Earth sciences; Earth, ocean, space; Ecosystem; Ecotoxicology, biological effects of pollution; Engineering and environment geology. Geothermics; Enterobacteriaceae - isolation & purification; Environmental Monitoring; Estuaries; Estuarine dynamics; Exact sciences and technology; Fundamental and applied biological sciences. Psychology; Hydrogen sulfide; Marine and brackish environment; Microbial contamination; Microorganisms; Natural water pollution; Oxygen - analysis; Pollutant load; Pollution; Pollution control; Pollution load; Pollution monitoring; Pollution, environment geology; Pontoons; Rehabilitation; Renewal; Seawaters, estuaries; Stations; Turkey; Turkey, Bosporus Strait; Turkey, Golden Horn; Water Microbiology; Water monitoring; Water Movements; Water pollution; Water Pollution - prevention & control; Water quality; Water quality management; Water treatment and pollution; Asia; Bosporus; Turkey; MED, Black Sea; MED, Turkey, Istanbul, Golden Horn Estuary; Marine environment; Coastal water; Water pollution; Ecological recovery; Water quality; Seawater
• ISBN: 1843394251; 9781843394259
• ISSN: 0273-1223; 1996-9732
• DOI: 10.2166/wst.2002.0138

In this work, the oceanographic aspects of the Golden Horn and some results of the Golden Horn Rehabilitation Project are presented. The hydrographic structure of the Golden Horn responds rapidly to the conditions in the southern Bosphorus, which is especially true for the outer parts of the estuary up to the Valide Sultan Bridge (VS). West of this bridge which was blocked by the pontoons of the bridge, carries the major pollution load and is dependent on the underlying water and surface mixing, for its renewal. The dissolved oxygen concentrations were measured below the detection limit in the region between the VS and Eyüp-Sütlüce (ES) section during the majority of the measurement periods where H2S has been determined simultaneously until February 2000. Although the microbial contamination of the estuary stations is very high, decreases in the contamination at stations are observed. The highest concentrations are recorded at the ES-VS section and supported by Fecal Coliform data during the rainy months in general despite the operational collector system surrounding the estuary. An obvious decrease of pollution in comparison with the data of the previous years is clearly observed as an encouraging result of the rehabilitation efforts achieved so far.