Determination of Polycyclic aromatic hydrocarbons (PAHs) and investigation of sources in sediments in Anzali Lagoon

The objective of this study is to determine oil pollutants (PAHs) and investigate PAH source in the sediments of Anzali Lagoon (in Mahrozeh & Selke stations) that can be of high importance from monitoring. Therefore, sampling is made in two wet and dry seasons at Mahrozeh & Selke stations. Finally, making use of GC, the related analyses were performed to determine PAHs. The results showed that mean PAHs in sediments of Mahrozeh were 34.839 in dry season and 61.439 ng/g dw in wet season, and in Selke were 80.432 in dry season and 45.439 ng/g dw in wet season. The amounts of PAHs in Mahrozeh & Selke stations were lower than PAHs in sediments of the Persian Gulf countries, (except of UAE and Oman sediments).and also PAHs in Mahrozeh & Selke stations were lower than sediments of Caspian Sea. The source of PAHs in Mahrozeh & Selke sediments were both pyrogenic and petrogenic.Statistical examinations didn’t show significant differences between PAHs in sampling seasons.