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Register a new userEffect of Polluted air in Damascus City on Cell Structure of Plants
تأثير الهواء الملوث بمدينة دمشق في البنية الخلوية للنبات
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Added by
Damascus University ورقة بحثية
Publication date
2001
fields
Biology
and research's language is
العربية
Created by
Shamra Editor
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تؤكد الدراسة التأثير الشديد للغازات الضارة المنبعثة من عوادم السيارات في البنية الخلوية لأوراق بعض النباتات دائمة الخضرة في ظروف مدينة دمشق، حيث تؤدي إلى تشوه شكل الخلايا و تخريب المادة الخلوية الأساسية فيها. تبين أن الياسمين أقل تأثرًا بالملوثات مقارنة مع النارنج من النباتات المدروسة.
The study assure heavy effect of harmful machines waste matter on leaves cell structure of some plants which grow at conditions of Damascus city, were cause to anormality of cell form and protoplasm degradation. Jasminum is less effected with pollutants than Citrus aurantium.
References used
العقيد، زكريا. ١٩٩٩ . تأثير الدخان الناتج عن حرق البترول الخام في النمو والتركيب الدقيق لورقة الفول البلدي. (كلية العلوم بجامعة الزقازيق – مصر). المجلس الأعلى للعلوم – أسبوع العلم التاسع والثلاثون. دمشق. جامعة دمشق.
العودات، محمد. ١٩٧٩ . تلوث البيئة: مصادره، أخطاره على الأحياء، طرق معالجته. الطبعة الأولى. دمشق. مكتبة ميسلون.
حاتوغ، بوران؛ علياء؛ أبو دية ومحمد حمدان. ١٩٩٦ . علم البيئة، الطبعة الثانية، الأردن – عمان – دار الشروق
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Cultivars of Medicago Sativa l.var local were planted in three locations, ten
pots per location. The first location wich is the most polluted one is (Bab
Toma), second polluted one is (Jeser Victoria), and the reference location is
(Daria), in the
west of Damascus.
Temperature, relative humidity and concentrations of main pollutants in
that three locations were measured.
Resultes showed that air pollution decreased growth of plants, amount of
chlorophyll, production of plants, number of flowers, number of pods and leaf
area in comparison with reference location.
The thin films of TiO2 were prepared by the Sol-Gel, on glass
subtracts by using the following initial solutions: trichlorethylene
titanium, ethanol, sodium hydroxide and hydrochloric acid and
distilled water. The films were annealed at temperatur
es(200- 300-
400-500)c° for 1 hour. The structure of the prepared and annealed
films were studied by XRD. The XRD rusltes showed that the films
prepared crystallize according to orthorhombic Structure.Lattice
constants were calculated and it was found that it was consistent
with the data JPCDS and with some scientific works.
The study development of diffusion flame has special importance in applications and industrial burners.
For achieving this aim, a diffusion burner was manufactured from Steel metal and three models of bluffbodies
were prepared with different engineering shapes: Diverge inside outside bluff-body, Rods bluff
body, and Combined bluff-body.
In addition, designing and building of integrated experimental system with group of control systems for
supply fuel and air flow are described. On the other hand we prepared system of Schieren Photography
and measured length of Diffusion Recirculation flame and obtained good results in field of reaction and
diffusion through analyzing Schieren Photography for flame front. The obtained results (Hvorticity =54
mm and Wvorticity= 52.5 mm) result widened stability range of flame front.
Effect of vorticity and diffusion was studied of soot free length fraction (SFLF) and considered as an
important parameter in industrial applications for burners, leading to reductions in pollution and
poisonous gas emission. The results (SFLF=0.2) are achieved for the first time in comparison to results of
literature review.
The research was conducted to study the resistance of Nerium plant which are planting on
sides of roads and the cities portals. The research was performed by studying the leaves of
Nerium plant, through studying the length and weigh of the leaf, an
d its area and water
content. In addition to studying the wools and hiatus and chlorophyll concentration, and
compared the results between the polluted region which is the entry of Banias City, and the
control one which is the gardens of Tishreen University.
Results showed non significant reduction in length, weight and area of the leaf in the
polluted region compared with the control one. It attained (16.2 cm, 0.97 g and 26.3 cm2),
respectively in the polluted region. Where it was (17.8 cm, 1.25 g and 27.7 cm2), for
control region, respectively. Also, there was no significant differences in water content
between the two studied regions. It attained respectively (52.2 and 53.9 %).
Our results showed:
- That a number of hiatus decreased, whereas the wools increased in the polluted region
compared with control region insignificantly. The mean of a number of it was 12 in
polluted region, compared with 14 in the control region.
- A simple insignificant reduction in the concentration of chlorophyll A in polluted region
compared with the control, where it attained (0.93 and 0.98), respectively.
The Nerium oleander plant was resistance and tolerance to the air pollution.
The study aimed to clarify the economic concept to the problem of environmental
pollution and the economic effects of him. How is the confrontation of this economic problem
through the following steps:
1- Quantification of environmental pollution
(air quality monitoring in the
surrounding medium).
2- Quantification of the results of environmental pollution (the negative impact on
health and property due to air pollution , and loss of agricultural and animal wealth .
3- Estimate of the results of environmental pollution ( the cost of treatment and
alternative employment opportunities , loss of GDP as a result of the inability to work due to
illness or disability or early death , property damage costs in agricultural and animal wealth ,
the cost of damage in the aesthetic value .
The study concluded that a range of results, including :
Monitoring and Pollution reality in Banias , and then compare the average cost
incurred by the population as a result of ( health damage , property damage, damage in
agricultural and animal wealth ).
Determination of environmental costs through the expense of a decline in the quality of
people's lives and the deterioration of the quality of the environment , such as exposure to
diseases caused by environmental pollution and the cost of treating these diseases physically
and years of work and life that are lost due to disease , in addition to the loss of the value of
environmental services and resources, especially non-renewable ones, as well as the loss
opportunities and environmental features such as the aesthetic standards of the tourist areas .
The study recommended that the industrial strategies in Syria adopt Sustainable
Industrial Development Policy, which include an integrated and comprehensive environmental
dimension in the administration of any industrial development project .
This is in line with the concept of sustainable development, which calls for enterprises of
different types to preserve the assets and resources of the community of human, material and
environmental which is considered the property of the current and future generations.
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