SVIBOR - Project code: 1-07-182

MINISTRY OF SCIENCE AND TECHNOLOGY

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Project code: 1-07-182

Organic pollutants in the Adriatic Sea

Main researcher: DUJMOV, JOZO (10793)

Assistants

SUČEVIĆ, PERICA (45386)

Type of research: applied
Duration from: 01/01/91. to 06/30/94.

Papers on project (total): 1

Institution name: Institut za oceanografiju i ribarstvo, Split (1)

Communication: Phone: 385 (0)46-682

Summary: In a frame of this three years project the monitoring of the following parameters has been continued to investigate: phenols, polyaromatic hydrocarbons (PAHs) and anionic detergents in the coastal sea. The obtained resutls present the base for an estimation of anthropogenic influence on marine ecosystem. Special attention has been done also to the accumulation proces of PAH contaminants from sediments to benthic fish striped mullet - Mullus barbatus. That analyses have been made on about 20 locations along the eastern Adriatic coast from Istra to Konavle. Further the contents of PAHs and chlorinated hydrocarbons - DDT, DDE, DDD, aldrin, HCB, HCH, PCBs, were determined in a new discovered commercial resource of shellfish Chamelea gallina in Neretva estuary. This fish belongs to the category of edible organisms (frutta di mare) and is important for exploitation. The method for determination of dissolved flurescence matter have been examined in detailed and new approach was applied. This parameter has a significant role in the eutrophication processes in the sea. Analytical methods - gas capillary chromatography and UV-fluorescence spectrometry used in these investigations have been confirmed in an international calibarion exercise organised by IAEA. During the 5 years work on this project 9 papers have been published.

Keywords: organic pollutants, Adriatic Sea, polyaromatic hydrocarbons, chlorinated hydrocarbons, humic substances, anionic detergents, phenols, marine organisms, sediments, seawater.

Research goals: The aim of this investigation is to determine the level of contamination of Adriatic Sea with organic contaminants in coastal area near larger seaports and in the open sea. The sampling locations were chosen according to the known places of submarine disposals and expected dispersion of the material entering the sea. The importance of such kind of investigation is to plan the construction of wastewater treatment plants to protect the seawater of contamination. The methods used for analyses of polyaromatic hydrocarbons as well as chlorinated hydrocarbons are recomended by international organization UNEP and IOC. The quality of applied method are attested through our participation in international intercalibration of which we got the official ratification (IAEA, UNEP, IOC: Report No.51, 1992). It is established the distribution pattern of some hydrophobic pollutants according to the investigations of lasting several years. The PAH and PCB enter the Adriatic via river Po and other north Italian rivers and with the current system transport to the middle part. The higher values are found near Italian coast (Dujmov, Villeneuve and Sučević, 1993). One of the aim was also the investigation of the role of humic substances in "phytoplankton bloom" processes. The concentrations of dissloved fluorescent matter in coastal area (Split) are relatively constant except in a period of phytoplankton bloom. We have also estimated the chemical quality of shellfish Chamelea galina catched in Neretva river estuary. The higher values of DDD were determined in some catches so they were not suitable for human food.

COOPERATION - INSTITUTIONS

Name of institution: International Atomic Energy Agency (I.A.E.A.)

Other information about the project.


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Last update: 10/07/95
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