The study was carried out in Gökçeada, located in the North Aegean Sea in 2017, during winter and summer seasons and the concentrations of 16 polycyclic aromatic hydrocarbon (PAH) components were determined in P. oceanica type seagrass samples. Total PAH (TPAH) values ranged from 190.8 to 7668.7 ng g⁻¹ dw during the sampling period. In addition, the source of pollution was investigated by using PAH ratios. According to the fluoranthene (FA) /pyrene (PY) ratio in the winter period, the origin of pollution is mostly pyrolytic, while in the summer period, according to the fluoranthene (FA) /pyrene (PY) and benzo(a)anthracene (BaA) /chrysene (CHR) ratio, the pollution origin was found to be petrogenic.

该研究于2017年冬季和夏季在北爱琴海的Gökçeada进行，并确定了P. oceanica型海草样品中16种多环芳烃（PAH）的浓度。在采样期间，总PAH（TPAH）值的范围为190.8至7668.7 ng g ^-1 dw。此外，还通过使用PAH比来调查污染源。根据冬季的荧蒽（FA）/ py（PY）比率，污染源主要是热解的，而在夏季，根据荧蒽（FA）/ py（PY）和苯并（a）蒽（BaA）/苯（CHR）比率，发现污染源是成因的。