Abstract
A mid-term study (2003-2013) of polycyclic aromatic hydrocarbons in Gulf of Trieste sediments was conducted at seven sampling sites. The PAH spatial and temporal distribution and origin were determined. The sediments were sampled with a gravity core sampler. After extraction of PAH, their concentrations were determined by gas chromatography. The results of the study show PAH spatial and temporal variability. The highest mean concentration was measured in the marina of Portoroz (1168 ng/g dw), and the lowest at an offshore site (320 ng/g dw). The results show higher concentrations of PAH in coastal areas and a decreasing trend towards the central part of the Gulf of Trieste. The interannual differences in the concentrations of PAH showed a significant downward trend in the marina of Portorož, in the port of Koper and in the offshore site off Piran. No trend was observed at all other sites. Various evaluation indices showed that PAH are predominantly of pyrolytic origin, with a lower proportion of petrogenic origin, especially in the Bay of Koper. The ecological risk assessment found that concentrations of PAH are well below levels associated with adverse biological effects. According to the presented results, this area can be considered as only moderately contaminated with PAH. However, the applied measures to reduce pollution should be continued and intensified.
Subject
Ocean Engineering,Water Science and Technology,Aquatic Science,Global and Planetary Change,Oceanography
Reference44 articles.
1. The PAH Level, Distribution and Composition in Surface Sediments From a Mediterranean Lagoon: The Marano and Grado Lagoon (Northern Adriatic Sea, Italy);Acquavita;Mar. pollut. Bull.,2014
2. Fate of Particle-Bound Polycyclic Aromatic Hydrocarbons in the River-Influenced Continental Margin of the Northern Gulf of Mexico;Adhikari;Mar. pollut. Bull.,2019
3. Polycyclic Aromatic Hydrocarbons in Marine Sediments From the Rijeka Bay Area, Northern Adriatic, Croatia 1998–2006;Alebic Juretic;Mar. pollut. Bull.,2011
4. Bioaccumulation of PAHs in Marine Zooplankton: An Experimental Study in the Copepod Pseudodiaptomus Marinus;Arias;Environ. Earth Sci.,2016
5. Aliphatic and Polycyclic Aromatic Hydrocarbons in Sediments of the Slovenian Coastal Area (Gulf of Trieste, Northern Adriatic);Bajt;Environ. Monit. Assess.,2012
Cited by
5 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献