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This research aimed to study the ability of both reeds (Phragmites communis) and poplar trees (Populus nigra V.hamui) to accumulate Pb and Cu. Where speared naturally prevail on the sides of the Rumaila River in Jableh town (research site), during 2014-2015.
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.
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 ecies, the soil samples were taken at (0-20)cm depth. Concentration of heavy metals were determined in soils and plants with "Atomic Absorption Spectrophotometer" Our results showed that the amounts of pb in the soil samples were 61.89ppm. The concentrations of lead pb in the parts of Ricnius Communis range between 4.3 to 5.81ppm; in the parts of Phragmites Communis range between 1.46 to 2.32ppm. According to statistics analysis Ricnius leaves surpass Ricnius wood and bark with accumulate lead; and Ricnius surpass Phragmites with accumulate lead too. Our results showed that the amounts of cd in the soil samples were 3.081ppm. The concentrations of Cd in the parts of Ricnius Communis range between 0.031 to 0.061ppm; in the parts of Phragmites Communis range between 0.031-0.055ppm. According to statistics analysis there is no moral differences between Ricnius and Phragmites with accumulate cadmium.
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