Alsin Spring is the most important water sources in Syrian coastal area, due to it is the source of drinking water for the main cities and towns in the Syrian coast. This research aimed to study some contaminant indicators in Alsin spring and some t
aps of distribution system of Alsin drinking water, and compare the Indicators with samples of bottled drinking water from Alsin spring and three other water sources (Drekish, Bukkeen, and Alfigeh). The study included determining the concentrations of nitrates, nitrites and some heavy metals including lead, cadmium and nickel in water samples. The results showed that all water sources contain varying concentrations of lead, while the nickel and cadmium were vary in drinking water samples; The concentrations of nickel and cadmium in some samples were low while were under the detection limits in other samples. The analysis of samples of bottled drinking water showed that the samples from Alfigeh spring were the lesser contamination with heavy metals, while the samples from Alsin spring were contain highest concentrations of lead and nickel. The samples of bottled water from Bukkeen spring contain the highest level of cadmium. The results showed that the concentrations of nitrate, nitrite and heavy metals differ depending on the water source. However, all these concentrations were lower and within the acceptable limits of Syrian standard for drinking water. The study concluded that water resources in the coastal area are distinguished with their higher pure.
This study was conducted to identify the levels of heavy metals (lead, cadmium, mercury, nickel, copper, iron, zinc) in the following processed local and imported meat: Sardine (canned full), Tuna (canned chunks), Hammour (frozen full), Euphrates Fis
h (frozen full), fish produced at Qattinah Lake in Syria (frozen full) , lamb (frozen ground), beef (frozen ground), lamb sausage (frozen full), beef sausage (frozen full), sausageproduced in Netherlands (frozen stuffed), lamb liver (frozen full), broiler chicken liver (frozen full), broiler chicken (frozen full), chicken mortadella (canned), beef mortadella (canned), chicken mortadella (canned) produced in Netherlands. Heavy metal concentrations were identified in the samples of the studied meat by atomic absorption spectrometer. The concentrations taken in the wet weight measured in (ppm) were as follows: lead values range between (0.1–5.61),cadmium(0.01–2.02), mercury (0.14 –79.01), nickel (0.11 - 0.82), copper (0.24 – 6.89), iron (1.01 - 91.03), zinc (8.14 - 45.5). It was noticed that in some of the studied samples of the imported and locally-processed meat the levels of lead, cadmium, mercury, and nickel were above the levels permitted by WHO (World Health Organization) and by FAO (Food and Agriculture Organization).While the concentrations of copper, iron, and zincwere belowthelevels permitted.
The aim of this research is to determine the effect of some heavy metal ions
on total protien metabolism in seeds and seedlings of maize plant (GHOTA 82)
and study the changes in the morphological specifications of plant, after
cultivating for 6 d
ays in solutions at different concentrations of water and
heavy metal ions Ni2+, Cu2+, Zn2+, Cd2+, Hg2+ and Pb2+.
The results showed that heavy metal ions have inhibitory effect on total
protien metabolism, which decreased their amount in seedlings, While
accumulated in the seeds. This inhibitory effect depends on the type and
concentration of heavy metal ions.
The results also showed morphological changes in the maize plant seedlings,
which decreased their growth due to the effect of these ions.
In this study the concentration of (Cu, Cr, Cd, Fe, Mn, Ni, Zn , Pb ,V &Co) in
some sedimentary columns and pore-water extracted from the estuary of Al-Kabeer
alshemali river was determined during four seasons .the concentrations of these metals
w
ere determined using atomic absorption spectroscopy (AAS). The columns were cut into
slices with 2cm of thickness ,the pore water at every slice was extracted using
centrifugation (7000 r/min).the results showed that the concentration increased from
surface(deep=0cm, rich of O2) up to the 4cm of deep ,then the concentration decreased in
deeper slices (down of 4cm,deficiency of O2) and the concentration of Fe and Mn from
high ranking ppm. The rest of the items were relatively lower ranking ppb, but Co, Cd and
V were low. meat increased the concentration of all these elements in the spring and
summer, compared with the values in the winter and autumn, due to increasing human
activities on the one hand and the high temperature on the other hand, leading to increased
activities of bacterial that leads to the decomposition of organic material that may increase
the ratios of these elements in the pore water.
Water sources in Syrian coastal area have a great importance due to the variety of the
sources and the urgent needs to water for drinking and irrigation. Therefore great efforts
are made to protect water sources from contaminants. This research aim
ed to study some
contaminant indicators in some drinking water sources in the Syrian coastal area. The
study included determining the concentrations of nitrates, nitrites and some heavy metals
including lead, cadmium and zinc in water samples taken from five sources of water
distributed from north Lattakia to north Tartous. The results showed that the concentrations
of nitrate, nitrite and heavy metals differ depending on the water source. However, all
these concentrations were lower and within the acceptable limits of Syrian standard for
drinking water. The study concluded that water resources in the coastal area are
distinguished with their relative purity and contaminants little reach.
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
(tran
sportation). 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.
This study aims to investigate the abilities of two tree species (Pinus brutia and
Cupressus sempervirens) planted in Banias Refinery Company to absorb and accumulate
lead and zinc basically emitted by the Refinery. Samples of the planted species (
leaves,
bark, and wood) and soil from around the plants were collected and analyzed by atomic
absorption spectrophotometer. The results did not show significant pollution with these
two elements. Moreover, there were not any significant differences between the two
species in terms of the accumulation of Pb and Zn. While the Pb concentrations ranged
between (24.96-30.84 ppm) for P. brutia and (24.05-30.23 ppm) for C. sempervirens, the
Zn concentrations ranged between (34.99-82.99 ppm) for P. brutia, (18.11-59.86 ppm) for
C. sempervirens. It was also revealed that P. brutia bark accumulated Pb more than the
other parts, whereas C. sempervirens leaves accumulated Zn more than the other parts.
The approximate composition (moisture, protein, fat, ash), the
content of heavy metals ( lead, arsenic, cadmium and mercury) wre
determined for twenty sample of Pangasius hypophthalmus frozen
fillets , fish samples collected from ten different are
as in the city of
Damascus varying in price , country origin and date of production
during the period between january -july of 2016.
Carried out a laboratory experiment in order kinetics study of adsorption
of cadmium and lead in the soil, using soil columns experiment, with the
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.
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.
