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Register a new userEstimation of the Vital Accumulation of Cadmium and Lead in the Khawia armeniaca Parasite and the Final Host Barbus grypus Fish
تعرف التراكم الحيوي للكادميوم و الرصاص في الطفيلي armeniaca Khawia و مضيفه النهائي سمكة الشبوط Barbus grypus
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بشرى حسن سعيد النعيمي( باحث )
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قُدر من خلال هذه الدراسة التركيز لكل من الكادميوم Cd و الرصاص Pb في بعض أعضاء أسـماك الشبوط grypus Barbus التي اِصطيدتْ من نهر دجلة في منطقة الرشيدية (الموصـل) و فـي أنـسجة الدودة الشريطية - النوع armeniaca Khawia باستخدام جهاز طيف الامتصاص الـذري، إذ لـوحظ وجود فرق معنوي (05.0 (في تركيز كل من الكادميوم و الرصـاص فـي الكبـد، و الكليـة، و الغلاصـم، و العـضلات و الأمعـاء فــي كــل مــن الأسـماك المـصابة و غيـر المـصابة بالـدودة الـشريطية armeniaca Khawia ، و قد بلغ تركيز كل من الكادميوم و الرصاص فـي أنـسجة الـدودة الـشريطية (300, 08.81 (ميكروغراماً/غرام من وزن الجسم على التوالي.
Through this study, the estimation of the accumulative concentration of cadmium Cd and lead Pb in some organs of Barbus grypus fish hunt in Tigris – Al-Rashidiyya district – Mosul, has been done. Also, the estimation has been done in the tissues of Khawia armeniaca cestode by using Atomic absorption CHOmeter where an abstracted difference (0.05) in the accumulative concentration of cadmium and lead in the liver, Kidney, gills, muscles and intestines of infected and uninfected fish. The accumulative concentration of cadmium and lead in the tissues of parasites (300, 81.08) Mg/g respectively.
References used
Choudhuri, S.; Liu, W. L.; Berman, N. E. J. and Klaassen, C. D. (1996). Cadmium accumulation and metallothionein expression of metallothionein in brain of mice at different stages of development. Toxicol. Lett., 84:127- 133
Chowdhury, M. J.; Baldisserotto, B. and Wood, C. M. (2005). Tissus- Specific cadmium and metallothionein levels in rainbowtrout chronically acclimated to water borne or dietary cadmium – Arch Environ Contamtoxicol., 48(3): 381-90
Dallinger, R. (1994). Invertabrate organisms as biological indicators of heavy metal pollution. Appl. Biochem. Biotechnol,48: 27-31
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Carried out a laboratory experiment in order kinetics study of adsorption
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use of concentration 26.25 mg / l for cadmium, and 27.81 mg / l for lead,
and two degrees of pH 5.5, 0.7, with the use of five parameters.
The aim of the present study was to determine the levels of lead and cadmium in the
meat, liver and kidney of sheep exposed in the local markets of the city of Latakia, and to
compare the results with those reported by other countries and with the
maximum
acceptable levels for human consumption, Lead and cadmium were determined by atomic
absorption spectrometry (AAS).
The mean concentrations of lead in meat, liver and kidney were 0.043, 0.284 and
0.118 mg/kg fresh weights, respectively, while mean concentrations of cadmium were
0.017, 0.173 and 0.252 mg/kg fresh weights, respectively. Statistical analysis showed a
significant difference in lead and cadmium concentrations between liver and kidney and in
meat.
In this study, the concentration of Pb and Cd was determined in some agricultural
products in order to compare this concentration and to know the capacity of these products
to accumulate these two elements. The samples were digested by nitric acid
and the
elements were determined by the atomic absorption spectroscopy. The results showed that
the concentration of lead and cadmium in protected products was less than the
concentration in unprotected products, and the concentration of lead was more than the
cadmium, these results can be explained by the extensive use of lead and the unprotected
agriculture products were exposed to the air pollution more than the protected products.
This study estimated the levels of lead and cadmium in 12 chocolate and cocoa
samples from latakia markets by atomic absorption spectrometry . Most of the samples,
were well known Syrian trademarks.
The results showed that concentration of lead in
samples of dark chocolate ranged
between 0.061 and 0.49 mg\ kg ,and in samples of cocoa between 0,10 and 0,51 mg\ kg,
but it was much less 0.01 - 0. 16 mg\ kg in white chocolate and Imported chocolates.
concentration of cadmium in samples of dark chocolate ranged between 0.01 and 0.24 mg\
kg and in samples of cocoa between 0.03 and 0.231 mg\ kg. but it was also less in white
chocolate and imported chocolates 0.01 - 0.051 mg\ kg.
The results indicated that dark chocolates have higher concentrations of lead and
cadmium than white chocolates and that the levels of lead and cadmium are generally
higher than the common levels in developed countries ,and thus. might be a significant
source of lead and cadmium ingestion, Raw materials should be checked before use for
metal contents in order to decrease the concentrations of these metals in final chocolate
products..
The aim of the study was to study the ability of the leaves of the figs (Ficus
retusa L.) and (Phoenix dactylifera L.) in the city of Tartous to accumulate the
lead elements (Pb), nickel (Ni).
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