ORGANIC POLLUTANTS IN THE WATER AND SEDIMENT SAMPLES OF THE ALBANIAN IONIAN SEA, SARANDA PORT
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DOI:
https://doi.org/10.59287/ijanser.396Keywords:
Saranda Port, Organochlorine Pesticides, Pcbs, PAH, Water Analyze, GC/ECD/FIDAbstract
The findings reported here belong levels of organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAH) in water and sediment samples of Albanian Ionian Sea. Stations from the port of Saranda were selected for this study. The activity in the ports areas is the main reasons for water pollution by chemical substances. Water currents can influence their levels. Some of these substances that present high risks (because of the high toxicity) are classified as priority substances.
Water and sediment samples were taken in February 2023 for 8 stations of Saranda’s port. Organochlorine compounds (pesticides and PCB markers) were extracted simultaneously by water samples by using liquid-liquid technique and n-Hexane as extracting solvent. Their extraction in sediment samples was realized by using ultrasonic technique assisted by n-Hexane/MeCl2 mixture (extracting solvent). PAHs were extracted in water samples by using two steps liquid-liquid technique. Firstly by using MeCl2 and after that n-Hexane as extracting solvent. PAH extraction in sediment samples was realized by using ultrasonic technique assisted by using n-Hexane/Acetone as extracting solvent. Analyzes of priority substances was performed using agas chromatograph (Varian 450 GC) equiped with ECD and FID detectors.
Organochlorine pollutants (pesticides, their degradation products and PCB) were detected in all water and sediment samples because of their previous use and/or atmospheric deposition. New arrivals from water current can influence their levels. PAHs were found in more than 50% of water and sediment samples. Their presence could be because of ship transport in port area, automobilist transport and spillages of gasoil stations or mechanical businesses. The found levels for these priority substances in water and sediment samples of Saranda port were lower than reported levels of them from other ports of Albania.
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