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نوع مقاله : مقالات پژوهشی

نویسندگان

1 کارشناس ارشد، گروه محیط‌زیست، دانشکده منابع طبیعی و محیط‌زیست، دانشگاه بیرجند، بیرجند، ایران.

2 محیط زیست، منابع طبیعی و محیط زیست، دانشگاه بیرجند، بیرجند، ایران.

3 محیط زیست،منابع طبیعی و محیط زیست، دانشگاه بیرجند، بیرجند، ایران.

چکیده

زمینه و هدف: فلزات سنگین به‌عنوان یکی از گروه­های مهم آلاینده­های محیط آبی، در اثر فعالیت­های طبیعی و انسانی به اکوسیستم­های آبی وارد می­گردند. این فلزات ممکن است در بدن آبزیان، از جمله ماهی انباشته ‌شده و خطری بالقوه برای سلامتی بوم سازگان و موجودات زنده، به‌ویژه برای انسان محسوب شوند. مطالعه حاضر با هدف بررسی غلظت سه فلز سنگین جیوه، آرسنیک و مس بافت عضله، کبد و پوست در دو گونه ماهی شوریده و کوتر در بنادر صیادی کنارک و پزم انجام شد.
مواد و روش‌ها: تعداد 36 نمونه ماهی از بنادر کنارک و پزم جمع‌آوری گردید. پس از آماده‌سازی نمونه‌ها، به‌روش هضم اسیدی، غلظت عناصر سنگین جیوه، آرسنیک و مس به‌وسیله دستگاه جذب اتمى تعیین گردید. تجزیه ‌و تحلیل داده‌ها با استفاده از نرم‌افزار آماری SPSS، ورژن 20 و آزمون‌های کواریانس و آزمون همبستگی پیرسون در سطح معنی‌داری 05/0 انجام شد.
یافته‌ها: بین مقادیر فلزات مورد مطالعه در بافت عضله، کبد و پوست شوریده و کوتر اختلاف معنی‌داری وجود نداشت (05/0<p). میانگین غلظت فلزات سنگین مس، جیوه و آرسنیک در بافت عضله ماهی شوریده به‌ترتیب 61/3، 01/0 و 02/0 و ماهی کوتر به‌ترتیب 38/2، 01/0 و 02/0 میکروگرم در گرم بود.
نتیجه‌گیری: میزان غلظت فلزات سنگین در بافت عضله کمتر از حد مجاز استانداردهای بین‌المللی سازمان جهانی بهداشت و سازمان جهانی غذا و کشاورزی بود.

کلیدواژه‌ها

عنوان مقاله [English]

Evaluation of concentrations of heavy metals (copper, mercury and arsenic) in the muscle tissue, liver and skin of Otolithes ruber and Sphyraena forsteri of the Oman Sea

نویسندگان [English]

  • Milad Abdollahi 1
  • Alireza Pourkhabbaz 2
  • Ahmad Khoshbin 3

1 Department of Environmental, Faculty of Environmental and Natural Resources, University of Birjand, Birjand, Iran.

2 Associate Professor, Department of Environmental, Faculty of Environmental and Natural Resources, University of Birjand, Birjand, Iran.

3 Department of Environmental, Faculty of Environmental and Natural Resources, University of Birjand, Birjand, Iran.

چکیده [English]

Background and purpose: Heavy metals, as one of the important groups of pollutants in the aquatic environment, enter aquatic ecosystems as a result of natural and human activities. These metals may be accumulated in the body of aquatic animals, including fish, and are a potential health hazard for ecosystems and living organisms, especially for humans. The present study was conducted with the aim of investigating the concentration of three heavy metals mercury, arsenic and copper in the muscle tissue, liver and skin in two species of two species of Otolithes ruber and Sphyraena forsteri in the fishing ports of Konarak and Pozm.
Material & Methods: 36 fish samples were collected from Kanarak and Pezem ports. After preparing the samples, the concentration of heavy elements mercury, arsenic and copper was determined by the atomic absorption method. Data analysis was done using SPSS statistical software, version 20 and covariance tests and Pearson correlation test at a significance level of 0.05.
Results: There was no significant difference between the amounts of the studied metals in muscle tissue, liver and inflamed and cauterized skin (p<0.05). The average concentration of heavy metals copper, mercury, and arsenic in the muscle tissue of Otolithes ruber 3.61, 0.01, and 0.02 respectively, and Sphyraena forsteri 2.38, 0.01, and 0.02 μg / g, respectively.
Conclusion: The concentration of heavy metals in the muscle tissue was lower than the international standards of WHO and FAO.
 

کلیدواژه‌ها [English]

  • copper
  • mercury
  • arsenic
  • Otolithes ruber
  • Sphyraena forsteri
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