نوع مقاله : Original Articles
نویسندگان
1 استادیار گروه محیط زیست، دانشکده منابع طبیعی، داﻧﺸﮕﺎه ﺻﻨﻌﺘﯽ ﺧﺎﺗﻢ اﻻﻧﺒﯿﺎء بهبهان
2 مربی، گروه محیط زیست، دانشکده منابع طبیعی؛ داﻧﺸﮕﺎه ﺻﻨﻌﺘﯽ ﺧﺎﺗﻢ اﻻﻧﺒﯿﺎء، بهبهان
چکیده
سرب جز فلزات غیر ضروری برای انسان است، به طوری که وجود هرمقدار از آن در بدن نشانگر آلودگی به ای ن عنصر م یباشد . یک ی ازمهمترین راه های ورود سرب به بدن انسان، مصرف غذاه ای دری اییآلوده به این عنصر میباشد. لذا این پژوهش سعی دارد ضمن بررس یغلظت سرب در ماهی شیربت رودخانه اروند، تعداد وعده های مجازمصرف ماهی مذکور در رودخانه اروند را تعیین نماید. جهت انجام اینمطالعه شش ایستگاه به طور تصادفی در رودخانه اروند تعیین و از هرایستگاه پنج عدد ماهی تهیه گردید، سپس بافت عضله ماهیان توسطاسید هضم شده و میزان سرب موجود در آن ها با استفاده از دستگاهجذب اتمی سنجش گردید. به طور کلی نتایج حاصل مبین بالاتر بودنمیزان سرب در عضله ماهیان ش یربت از حد استاندارد تعیی ن شدهو NHMRC ، WHO ،FAO توسط سازمانهای معتبر جهانی مانندمیباشد. میانگین غلظت سرب در عضله ماهی شیربت U.K(MAFF)61 میکروگرم بر گرم وزن خشک) / 82/4 میکروگرم بر گرم وزن تر ( 16بود. با توجه به محاسبات صورت گرفته در خصوص حد مجاز مصرفماهیان مورد مطالعه از نظر غلظت سرب، باید پارهای از ملاحظات را بویژهدر خصوص زنان باردار و کودکان رعایت نمود. بر این اساس، مصرف اینگونه از ماهیان رودخانه اروند، به دو وعده در ماه توصیه می شود . درنتیجه مصرف ماهی مذکور بر اساس وعده های مجاز، خطر جدی برایسلامتی مصرف کنندگان از نظر میزان سرب نخواهد داشت
کلیدواژه‌ها
عنوان مقاله [English]
Determination of Lead Concentration in Barbus grypusfrom Arvand River, With Emphasis on the Accumulation and Assessment of Risks
نویسندگان [English]
- Hamid Reza Pourkhabbaz 1
- Mitra Cheraghi 2
- Saeideh Javanmardi 2
1 Assistant Professor, Department of Environment, Faculty of Natural Resources, Behbahan Khatam Alanbia University of Technology
2 Instructor, Department of Environment, Faculty of Natural Resources, Behbahan Khatam Alanbia University of Technology
چکیده [English]
Lead (Pb) is an unnecessary element for human body, so existence of a very limited amount of this metal in the body causes very serious disease. One of the main ways that lead can enter to human body is the consumption of contaminated seafood which consequently cause lead accumulation in tissues. Hence, in this study, the human health risk due to consumption of Barbus grypus in Arvand River, was investigated by measuring the concentration of lead in muscle samples. In this case, a total of 30 fresh fishes were collected from six station in Arvand River (located in Khuzestan province, Iran). Samples of tissue were digested with acid, thus concentration of lead was measured using atomic absorption spectrophotometer. Overall, the results indicated that lead level in the muscle of B. grypus was higher than standard level of international organization such as FAO, WHO, NHMRC, and UK (MAFF). Average lead concentration in the muscle of Barbus grypus was 4.82 μg/g wet weight (16.61 μg/g dry weight). According to calculation of lead concentration and determination of limit value of fish consumption, there is cautions about consumption of B.grypus particularly in pregnant women and children. Accordingly, taking the Arvand river fish species, two times a month is recommended. However, the consumption of the B.grypus cannot cause serious threat to the human, if fish consumption occurs on permitted dosage.
کلیدواژه‌ها [English]
- Keywords: Arvand River
- Barbus grypus
- Lead
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