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Register a new userA Comparison of Four Planted Species Abilities to Accumulate Cadmium Element (Cd) in Lattakia City (Alfoursan Park)
مقارنة قدرة أربعة أنواع نباتية مزروعة على مراكمة عنصر الكادميوم (Cd) في مدينة اللاذقية (حديقة الفرسان)
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Tishreen University ورقة بحثية
Publication date
2013
fields
Forestry and Ecology
and research's language is
العربية
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Shamra Editor
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دف هذه الدراسة إلى مقارنة قدرة أربعة أنواع نباتية (Bougainvillea glabra, Ficus benjamina L. Ligustrum vulgare L., Bauhinia variegate Linn.) مزروعة في حديقة الفرسان في مدينة اللاذقية على امتصاص و مراكمة عنصر الكادميوم الصادر عن وسائل النقل بشكل رئيس. جمعت عينات الأوراق، القلف، الخشب و التربة، ثم جهزت (تجفيف- هضم- ترشيح) للتحليل باستخدام جهاز التحليل الطيفي بالإمتصاص الذري (atomic absorption spectrophotometer). و أظهرت النتائج أن أعلى تركيز للكادميوم وجد في قلف الجهنمية 4.4 ppm بالوزن الجاف (Dry weight)، يليه في أوراق الجهنمية 4.2 ppm، ثم في قلف التين الباكي ppm 3.93، و أخيراً في قلف خف الجمل 3.55 ppm . أما أقل تركيز له في خشب التين الباكي 1.66 ppm. و أشارت النتائج إلى أهمية الأنواع النباتية المدروسة و إمكانية امتصاص و مراكمة معدن الكادميوم، كما أكدت تفوق الجهنمية على كل من التين الباكي و خف الجمل و اللغستروم و تصنيفه كنبات مراكم و مهم لتنقية البيئة من هذا العنصر و كدليل حيوي للتلوث به.
This study aims to compare the ability of four plant species (Ficus benjamina L., Bougainvillea glabra, Ligustrum vulgare L., Bauhinia variegate Linn.) to absorb and accumulate the cadmium element which is basically emitted by motor vehicles (transportation). The four species were planted in Alfoursan Park in Lattakia City. Samples of leaves, bark, wood and soil were collected, and then processed (drying, digesting and filtrating) for analysis using an atomic absorption spectrophotometer. The results showed that the highest concentration of cadmium was in the bark of Bougainvillea glabra 4.4 ppm (in dry weight), next in the leaves of Bougainvillea glabra 4.2 ppm, then in the bark of Ficus benjamina L. 3.93 ppm, and finally in the bark of Bauhinia variegate Linn. 3.55ppm. The lowest concentration, however, was in the wood of Ficus benjamina L. 1.66 ppm. The results show the importance of the four species and the potential of absorption and accumulation of the cadmium element. Results also showed the superiority of Bougainvillea glabra over Ficus benjamina L., Ligustrum vulgare L. and Bauhinia variegate Linn. Bougainvillea glabra is classified in the study as an accumulator plant important to purify the environment from the cadmium element.
References used
AKGUÇ, N., OZYIGIT, I., YARCI, C. Pyracantha coccinea Roem. (ROSACEAE) as a Biomonitor for CD, PB and ZN in Mugla province. Int. J. Environ. Sci. Tech. 2008, 427-434
AKSOY, A.; SAHIN, U. Elaeagnus angustifoliaL. As a Biomonitor of Heavy Metals Pollution. Tr. J. of Botany. 1999, 83-87
AKSOY, A.; SAHIN, U.; DUMAN, F. Robinia pseudo-acacia L. as a Possible Biomonitor of Heavy Metal Pollution in Kayseri. Turk. J. Bot, 2000, 279-284
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This study aimed to study the accumulative abilities Ricnius Communis & Phragmites Communis for lead and cadmium. This plants are native near the RMAILAH river in JABLAH city.
The plants samples were collected from leafs, wood, and bark for plant sp
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This study aims to compare the ability of three plant species (Eucaleptus camaldulensis L., Acacia cyanophylla L. and Ricinus communis L.) on the accumulation of cadmium (Cd) resulting from the different existing pollution sources in the study area (
Abdul Qader Al Husseini Street - Latakia) especially resulting from traffic. The samples were collected from different parts (leaves, wood, bark) of the species mentioned in addition to samples of the soil, then the samples were processed and analyzed by atomic absorption spectrophotometer.
The results showed a difference in the content of cadmium in the studied species, ranged between (0.25 mg/kg) and (0.42 mg/kg) dry weight, where the highest content in Ricinus wood (0.42 mg/kg) and then Eucalyptus wood (0.4 mg/kg) and minimum content in Acacia wood (0.32mg/kg). Ricinus and Acacia showed high ability to accumulate cadmium reaching Bioconcentration factor (BF=1.33) for Ricinus and (BF=1.13) for Acacia
this research aimed to study the ability of both reeds (Phragmites communis) and
poplar trees (Populus nigra) to accumulate Cd and Zn. Where speared naturally prevail on
the sides of the Rumaila River in Jableh town (research site), during 2014-201
5. Average
amount of Cd on studied site was 3.081 ppm dry weight. Compared with the normal range
of soil content from Cd (0.06-1.1 ppm), we found that it is three times the normal upper
limit, indicating site contamination with Cd. The study showed that the Cd concentration in
the reed shoots was 0.031 ppm, while it was up to 0.055 ppm in leaves than that of shoots.
The value of bio-accumulation factor (BF) was 0.014. Also for poplar, the study revealed
predominance of leaves over bark with Cd concentration of 0.034 ppm versus 0.016 ppm
for poplar bark. BF value was 0.02. Regarding average amount of Zn in the soil of studied
site was recorded 116.61 ppm of dry weight. Compared with average range of Zn in
different types of soil (40-100 ppm), we find that it is slightly higher than the normal upper
limit, showing site contamination with Zn. The study stated that the Zn concentration in
reed leaves was 9.05 ppm versus 8.03 in the shoots. BF value was 0.07. Zn concentration
in poplar leaves was the lowest at 5.13 ppm versus 6.07 ppm for the bark. We notice from
these findings that the Zn amount in the parts of poplar plant is approximate. BF value was
0.05. The statistical analysis showed significant superiority of reed to poplar in terms of Cd
accumulation, and the same for Zn.
تعد التربة والماء أهم المصادر الطبيعية غالية الثمن التي يستخدمها الإنسان في الزراعة و التمدن ولكن أصبحت عرضة للتلوث على نحو خطير بسبب الأنشطة البشرية حيث ربط الباحثون المشاكل البيئية بالتقدم الصناعي الهائل الذي بدأ في العام 1950 وكذلك بالأنشطة الزراعية والذي بدأ في النصف الأول من القرن العشرين
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..
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