تعیین منبع و منشأ هیدروکربن‌های نفتی در رسوب و چهار گروه از ماکروزئوبنتوزها در شمال خلیج‌فارس

نوع مقاله : مقاله کامل علمی - پژوهشی

نویسنده

نویسنده مسئول، پژوهشکده اکولوژی خلیج‌فارس و دریای عمان، مؤسسه تحقیقات علوم شیلاتی کشور، سازمان تحقیقات آموزش و ترویج کشاورزی، بندرعباس، ایران.

چکیده

این مطالعه به‌منظور مقایسه حضور ترکیبات آروماتیک چند حلقه‌ای در رسوبات و مقایسه آن‌ها در چهار گروه از اجتماعات ماکروزئوبنتوز شامل، شکم پایان، دوکفه‌ای‌ها، سخت‌پوستان و پرتاران در شمال خلیج فارس صورت پذیرفت. نمونه‌برداری در 9 ایستگاه با استفاده از یک دستگاه گرب ون وین در امتداد خط ساحلی بندرعباس در اسفند 98 و مرداد 99 انجام شد. میانگین غلظت کل PAH ها در دو دوره نمونه‌برداری بدون در نظر گرفتن پراکنش زمانی به تفکیک ایستگاه نشان داد پالایشگاه دارای بیشترین تجمع این ترکیبات است و پس‌ازآن پشت شهر و سورو در جایگاه‌های بعدی قرار دارند. بیشترین میانگین غلظت هیدروکربن‌های آروماتیک چند حلقه‌ای در شکم پایان متعلق به ترکیب 3 حلقه‌ای Acenaphthene با میانگین (ppb) 1117 و کمترین مقدار متعلق به ترکیب 6 حلقه‌ای Benzopyrylene با میانگین (ppb) 2 به دست آمد. در دوکفه‌ای بیشترین میانگین غلظت متعلق به ترکیب 3 حلقه‌ای Acenaphthene با میانگین (ppb) 1261 و کمترین مقدار متعلق به ترکیب 6 حلقه‌ای Benzopyrylene با میانگین (ppb) 32 به دست آمد. بیشترین میانگین غلظت متعلق به ترکیب 4 حلقه‌ای Fluranthene با میانگین (ppb) 1551 و کمترین مقدار متعلق به ترکیب 6 حلقه‌ای Benzopyrylene با میانگین (ppb) 0، در بافت سخت‌پوستان به دست آمد. مطالعات نشان داد که رسوبات ترکیبات 5 حلقه‌ای، نرم‌تنان ترکیبات 3 حلقه‌ای، خرچنگ‌ها ترکیبات 4 حلقه‌ای و پرتاران ترکیبات 5 حلقه‌ای را آسان‌تر جذب می‌نمایند.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

The source and origin of petroleum hydrocarbons in the sediment and four groups of macrozoobenthos communities in north of Persian Golf

نویسنده [English]

  • Keivan Ejlali Khanghah
Corresponding Author, Persian Gulf and Oman Sea Ecology Research Center, Iranian Fisheries Science Research Institute, Agricultural Research Education and Extension Organization (AREEO), Bandar Abbas, Iran.
چکیده [English]

This study was conducted in order to compare the presence of polycyclic aromatic hydrocarbons in sediments and to compare them in four groups of macrobenthic communities, including gastropods, bivalves, crustaceans, and polychaetes in the north of Persian Golf. Sampling was carried out at 9 stations using a van veen grab along the coastline of Bandar Abbas in March 2018 and August 2019. The average concentration of total PAHs in two sampling periods, regardless of time distribution by station, showed that the refinery has the highest concentration of these compounds, followed by Posht-e-Shahr and Soro. The highest average concentration of polycyclic aromatic hydrocarbons in gastropods belonged to the 3-ring compound Acenaphthene with an average (ppb) of 1117 and the lowest value belonged to the 6-ring compound Benzopyrylene with an average (ppb) of 2. In bivalves, the highest average concentration of the 3-ring compound Acenaphthene with an average (ppb) of 1261 and the lowest value of the 6-ring compound Benzopyrylene with an average (ppb) of 32 was obtained. The highest average concentration belonging to the 4-ring compound Fluranthene with an average (ppb) of 1551 and the lowest value belonging to the 6-ring compound Benzopyrylene with an average (ppb) of 0 were obtained in crustacean tissue. Studies showed that sediments absorb 5-ring compounds, molluscs absorb 3-ring compounds, crabs absorb 4-ring compounds, and reptiles absorb 5-ring compounds more easily.

کلیدواژه‌ها [English]

  • Keywords:Petroleum hydrocarbon
  • Macrobenthos
  • Persian Golf
  • Petroleum
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