ارزیابی خطر فلزات جیوه و آرسنیک در ماهیان هوور (Thunus tonggol) و سرخو (Lutjanus ehrenbergii) در دریای عمان

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشگاه زابل

2 دانشگاه جیرفت

چکیده

این مطالعه به ارزیابی خطر فلزات جیوه و آرسنیک در ماهیان هوور (Thunus tonggol) و سرخو (Lutjanus ehrenbergii) در دریای عمان برای گروه‌های مختلف افراد (بزرگسالان، زنان و کودکان) می‌پردازد. تعداد 34 نمونه ماهی هوور و 30 نمونه ماهی سرخو به صورت کاملاً تصادفی نمونه‌برداری شدند. میزان جیوه و آرسنیک در بافت عضله ماهیان به ترتیب با روش‌‌های استاندارد ASTM(1) به شماره 6722-D و هضم شیمیایی تعیین شدند. میانگین غلظت فلزات جیوه و آرسنیک در ماهی هوور به ترتیب 012/0 ± 24/0 و µg/g wet weight 006/0±13/0‌‌ و برای ماهی سرخو به ترتیب 008/0± 16/0 و µg/g wet weight 008/0± 09/0 به دست آمد. میانگین جیوه تنها در ماهی هوور از حد استاندارد آژانس حفاظت محیط‌زیست ایالات متحده (US EPA)(2) برای جیوه در ماهیان (µg/g wet weight 1/0) بالاتر بود. میانگین آرسنیک در نمونه‌های ماهیان هوور و سرخو از حد استاندارد US EPA برای آرسنیک (µg/g wet weight 3/0) پایین تر به دست آمد. شاخص خطر (HQ)(3) تنها برای جیوه در ماهی هوور برای گروه کودکان از 1 فراتر رفته بود. کمترین دفعات مصرف ماهانه به ترتیب برای آرسنیک در مورد ماهی هوور برای گروه زنان (حدود 5/6 وعده در ماه) و برای جیوه در ماهی هوور برای گروه زنان (حدود 3 وعده در ماه) محاسبه شد. به‌‌طور‌‌کلی توصیه می‌‌شود؛ افراد با اعمال محدودیت‌‌های مصرف اجازه دهند تا مواجهه با این آلاینده‌‌ها کاهش یابد؛ در حالی که از مزایای تغذیه‌‌ای و سلامتی مصرف ماهی بهره‌‌مند می‌‌شوند.

کلیدواژه‌ها


عنوان مقاله [English]

Risk Assessment of Mercury and Arsenic Metals in Longtail Tuna (Thunus tonggol) and Blacrskspot Snaper (Lutjanus ehrenbergii) in the Oman Sea

نویسندگان [English]

  • Narjes Okati 1
  • Malihe Amini 2
1 Zabol University
2 University of Jiroft
چکیده [English]

This study evaluates the risk of mercury and arsenic metals in the longtail tuna fish (Thunus tonggol) and blacrskspot snaper fish (Lutjanus ehrenbergii) in the Oman Sea for various people (adults, women and children). Mercury and arsenic concentrations in the fish muscle tissues were determined by using the standard methods D-6722 and chemical digestion, respectively. The number of 34 and 30 samples of longtail tuna fish and blacrskspot snaper fish were randomly selected, respectively. The mean mercury and Arsenic in the longtail tuna fish were obtained0.24±0.012 and 0.13±0.006µg/g wet weight, and they were in the blacrskspot snaper fish, 0.16±0.008 and 0.09±0.008 µg/g wet weight, respectively. The mean mercury concentration, only in the longtail tuna fish was exceeded than the US EPA standard set for mercury in the fish (0.1 μg/g wet weight).The mean arsenic concentration in longtail tuna and blacrskspot snaper fish were lower than the US EPA standard for arsenic (0.3 μg/g wet weight). The hazard quotient (HQ) was only higher than 1 for mercury concentration in the longtail tuna fish for children. The lowest monthly allowed consumption for arsenic were obtained in the longtail tuna fish for the women group (about 6.5 servings per month) and for mercury in the longtail tuna fish for the women group (about 3 servings per month), respectively. Generally, it is advised people apply the consumption restrictions to reduce exposure to these pollutants, while they used of the nutritional and health benefits of fish consumption.

کلیدواژه‌ها [English]

  • Allowed Consumption Rate
  • ARSENIC
  • Mercury
  • Longtail tuna fish (Thunus tonggol)
  • Blacrskspot snaper fish (Lutjanus ehrenbergii)
  • Oman Sea
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