بررسی غلظت فلزات سنگین سرب، کادمیوم و نیکل در بافت عضله ماهی ساردین روغنی (Sardinella longiceps) و صدف خوراکی (Saccostrea cucullata) (مطالعه موردی: سواحل استان بوشهر)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه علوم و مهندسی محیط زیست، واحد علوم و تحقیقات، دانشگاه آزاد اسلامی، تهران، ایران

2 موسسه تحقیقات علوم شیلاتی کشور، سازمان تحقیقات، آموزش و ترویج کشاورزی، تهران، ایران

3 گروه امنیت آب، دانشکده محیط زیست و توسعه پایدار، دانشگاه ساسکاچوان، ساسکاتون، کانادا

چکیده

افزایش آلودگی فلزات سنگین در خلیج‌فارس که نتیجه رهاسازی مشتقات نفتی، فاضلاب‌های تأسیسات ساحلی نظیر پالایشگاه‌ها و کارخانجات بزرگ صنعتی، بنادر صیادی و تجاری، فاضلاب‌های خانگی و هم چنین رواناب کشاورزی که نتیجه استفاده از سموم دفع آفات و حشره‌کش‌ها می‌باشد از مهم ترین مخاطراتی است که این زیست‌بوم را با تهدید مواجه ساخته است. با توجه به اثبات ارزش تغذیه‌ای فراورده‌های دریایی در دهه‌های گذشته و لزوم تأمین منابع پروتئینی و اسیدهای چرب ضروری بدن، مطالعه میزان عناصر سنگین جهت کاهش خطرات ناشی از مصرف آبزیان الزامی است. با توجه به اهمیت بررسی آلودگی‌های مربوط به فلزات سنگین در آبزیان خوراکی به علت احتمال تجمع این فلزات، 30 نمونه ماهی ساردین روغنی و 30 نمونه صدف خوراکی سواحل بوشهر مورد آنالیز قرار گرفت.ماهی ساردین روغنی و صدف خوراکی هر دو مصرف خوراکی برای انسان دارند و با توجه به گزارشات چند سال گذشته مبنی بر حضور آلاینده‌ها از جمله عناصر سنگین در آب‌های خلیج‌فارس، ضروری است که این گونه‌ها از نظر سلامت برای مصرف انسانی کاملاً مورد آزمایش قرار بگیرند. هدف اصلی این تحقیق تعیین و اندازه‌گیری تجمع سرب، کادمیوم و نیکل در عضله ماهی ساردین روغنی و صدف خوراکی در خلیج‌فارس و برآورد ریسک ناشی از مصرف آن است. میانگین غلظت فلزات سرب، کادمیوم و نیکل در عضله‌ی ماهی ساردین روغنی به ترتیب 0/4327، 0/0192 و 0/0006 و در نرم‌تن صدف خوراکی به ترتیب 0/7414، 0/0550 و 0/0025 میکروگرم بر گرم وزن تر محاسبه شد. مقایسه میانگین غلظت فلزات با مقادیر استاندارد اعلام شده توسط سازمان‌های جهانی نظیر سازمان جهانی بهداشت ، سازمان غذا و دارو آمریکا و وزارت کشاورزی و شیلات و غذای انگبستان نشان داد که تمام مقادیر مذکور پایین‌تر از حد استاندارد بود. شاخص HQ نیز برای هر دو گونه کمتر از 1 به دست آمد که نشان می‌دهد مصرف ماهی ساردین روغنی و صدف خوراکی خطر جدی برای سلامت مصرف‌کنندگان از نظر میزان سرب، کادمیوم و نیکل ندارد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Investigating the concentration of lead, cadmium and nickel in the muscle tissue of oily sardine fish (Sardinella longiceps) and edible oyster (Saccostrea cucullata) and estimating the risk health assessment (case study: beaches of Bushehr province)

نویسندگان [English]

  • Lobat Taghavi 1
  • Tooraj Valinassab 2
  • Elham Ghazian 1
  • Shahrokh Soltaninia 1
  • Parastoo Asgari 1
  • Saman Sakhaei 3
  • Yalda Fazli 3
1 Department of Environmental Sciences and Engineering, Branch Science and Research, Islamic Azad University, Tehran, Iran
2 Iranian Fisheries Science Research Institute, Agriculture Research Education and Organization, Tehran, Iran
3 Department of Water Security, School of Environment and Sustainable Development, University of Saskatchewan, Saskatoon, Canada
چکیده [English]

The increase in the consumption of heavy metals in the Persian Gulf is the result of oil release, coastal investments such as refineries and large industrial factories, in fishing and commercial, household industries, as well as agricultural runoff, which is the result of pesticides and pesticides. It is one of the dangers that have made the ecosystem with this threat. Considering the proof of the nutritional value of marine products in the past decades and the need to consume food sources and fatty acids needed by the body, it is necessary to study the increase in the amount of risks caused by the consumption of aquatic products. Considering the importance of treatments related to heavy metals in edible aquatics due to the possibility of the accumulation of these metals, 30 oily sardine fish samples and 30 food samples from the beaches of Bushehr were analyzed. Oily sardines and edible oysters are both for human consumption, and according to the reports of the past few years about the presence of pollutants, including heavy elements, in the waters of the Persian Gulf, it is necessary that these species are healthy for human consumption. Thoroughly tested. The main purpose of this research is to measure the accumulation of lead, cadmium and nickel in the muscles of oily sardines and oysters in the Persian Gulf and its consumption. The composition of lead, cadmium and nickel metals in oily sardine fish muscle was calculated as 0.4327, 0.0192 and 0.0006 respectively and in edible oyster mollusk as 0.7414, 0.0550 and 0.0025 micrograms per weight respectively. A comparative comparison with the standards specified by global organizations such as WHO, FDA and UKMAFF shows that all the following were within the standard. The HQ index was less than 1 for both species, which indicates that the consumption of oily sardines and edible oysters does not pose a serious risk to the health of consumers in terms of lead, cadmium and nickel levels.

کلیدواژه‌ها [English]

  • Heavy metals
  • oily sardines
  • oysters
  • Bushehr
  • risk assessment
  • Persian Gulf

مراجع

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فصلنامه محیط زیست جانوری
دوره 15، شماره 2
مرداد 1402
صفحه 281-292

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