14 مهر 1403

مهدی محمدی

مرتبه علمی: استادیار
نشانی: پژوهشکده خلیج فارس - گروه زیست فناوری
تحصیلات: دکترای تخصصی / بیوتکنولوژی
تلفن: 0772150668
دانشکده: پژوهشکده خلیج فارس

مشخصات پژوهش

عنوان Polycyclic Aromatic Hydrocarbons in Seawater, Sediment, and Rock Oyster Saccostrea cucullata from the Northern Part of the Persian Gulf (Bushehr Province)
نوع پژوهش مقالات در نشریات
کلیدواژه‌ها
Polycyclic aromatic hydrocarbons . Rock oyster . Sediment . Seawater . Boushehr province Persian Gulf
مجله Water, Air, and Soil Pollution: Focus
شناسه DOI https://link.springer.com/article/10.1007/s11270-0
پژوهشگران روزبه میرزا (نفر اول) ، مهدی محمدی (نفر دوم) ، علی دادالهی (نفر سوم) ، علی رضا صفائیه (نفر چهارم) ، احمد سواری (نفر پنجم) ، پروانه حاجب (نفر ششم به بعد)

چکیده

The concentration of polycyclic aromatic hydrocarbons (PAHs) was determined in seawater, sediment, and Rock oyster Saccostrea cucullata collected from four sampling sites in the inter-tidal areas of Bushehr province. The total concentrations of 14 PAHs varied from 1.5 to 3.6 ng/L in seawater, 41.7 to 227.5 ng/g dry weight in surface sediment, and 126 to 226.1 ng/g dry weight in oyster tissue. In comparing PAH concentrations among the three matrices in Bushehr province, data showed that the pattern of individual PAHs in seawater, oyster, and sediment were different. The oysters tended to accumulate the lower molecular weight and the more water-soluble PAHs. Sediment samples were distinguished from the sea water and oyster samples by the presence of high molecular weight PAHs, especially six-ring PAHs. Three- and four-ring PAHs were the most abundant compounds among the 14 PAHs investigated in surface seawater, sediment, and oyster samples. As expected, differences in octanol/water partition coefficient among individual PAHs and the greater persistence of the higher molecular weight PAHs contributed to the accumulation patterns in oyster and sediment. The results of the study suggested that the main sources of PAHs in the seawater and sediment in the region were mixed pyrolitic and petrogenic inputs.