Transcript Слайд 1 - BlackSeaScene

Investigation of Total Petroleum Hydrocarbons
Content in Rivers and Sea Waters of Black Sea
Coastal Region Ureki-Shekvetili
Lela Mtsariashvili, Mariam Elizbarashvili, Teimuraz Jakhutashvili, Nodar Kekelidze, Manana Chkhaidze
Ivane Javakhisvili Tbilisi State University, 0179, Tbilisi, Georgia
Speaker - Lela Mtsariashvili
"Black Sea Outlook"
3rd Bi-annual BS Scientific Conference and UP-GRADE BS-SCENE Project Joint Conference
31 Oct - 4 Nov 2011, Odessa, Ukraine
Figure 1. Schematic arrangement of Black Sea
Figure 2. Schematic arrangement of control points
Sea – 1
Sea – 2
v. Qvemo Natanebi
v. Khidmaghala
r. Supsa
Sea 2
Sea 1 r. Natanebi
place of Natanebi river inflow into the sea, right coast;
costal zone between the Natanebi and Supsa rivers
(1 km length from Shekvetili to Ureki direction);
near the road bridge on the Natanebi river;
near the road bridge on the Supsa river.
Methodology
Preparing of extracts
For establish TPH concentrations from water samples extracts were prepared
according to the МАDЕР-ЕРН-98-1 method.
Quantitative analyses
Quantitative analyses of TPH were carried out by the gravimetric method.
Table 1. TPH concentration data and average values
Concentration, mg/L
#
Research
objects
IX.08
XI.08
II.09
V.09
VII.09
X-XI.09
Average
values, mg/L
1
R. Natanebi
0.2
0.2
0.3
0.5
0.4
0.2
0.30
2
R. Supsa
0.2
<0.1
0.3
0.5
0.3
0.2
0.25
3
Sea – 1
0.4
0.2
0.3
0.5
0.6
0.3
0.38
4
Sea – 2
0.2
<0.1
0.2
0.5
0.5
0.4
0.30
av
max
Figure 3. Distribution of TPH
minimal (min), average (av) and
maximal (max) values by the
control points
R. Natanebi
sea-1
sea-2
R. Supsa
Control Points
sea-1
sea-2
R. Natanebi
R. Supsa
0.7
Figure 4. Distribution of TPH
concentration by the time
concentration, mg/L
concentration, mg/L
min
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0.6
0.5
0.4
0.3
0.2
0.1
0
IX.08
XI.08
II.09
V.09
Month, Year
VII.09
X-XI.09
Table 2. The comparison of results received in the present work with the
literature data
#
Research object
TPH, mg/L
Literature
1
R. Supsa
<0.1 - 0.5
In the present work
2
R. Supsa
<0.04 - 0.14
[1]
3
Black Sea
<0.1 - 0.6
In the present work
4
Black Sea
0.2-1.3
[3]
5
Black Sea in Batumi area
0.35
[2]
6
Black Sea in Batumi area
0.13 averige
[2]
7
Black Sea
<0.04 - 0.84
[1]
4.72
[1]
8 Black Sea near R. Natanebi inflow
[1] Ministry of economic development of Georgia, Department of tourism and resorts, “Project of sanitation protection
of resort Ureki”, Executor scientific research company “GAMA”, Vol. II, Tbilisi December 2006;
[2] I. Mikadze“Ecology”,Quality Control Educational University Of Georgia, Second edition, Tbilisi, 2006;
[3] G. Supatashvili, G. Kajaia “Environment and the human”, published by TSU, Tbilisi 2001.
Conclusions
1. In work there is investigated the content of TPH in Natanebi and Supsa
rivers, and Black Sea waters;
2. It is shown, that the TPH concentration varies:
•
in the Natanebi river water – from 0.2 up to 0.5
mg/L;
•
in the Supsa river water – from <0.1 up to 0.5 mg/L;
•
in sea water - from <0.1 up to 0.6 mg/L.
3. It is suggested, that the presence of petroleum hydrocarbons in river water is
caused by the impact of both natural (natural precipitations of oil located
near the rivers), and anthropogenic (wastes polluted with the petroleum
hydrocarbons, which flows from the plants located nearby the rivers) factors;
4. The presence of petroleum hydrocarbons in sea water is caused by the
impact of rivers, but the minor increase probably is activated by the other
reasons (by the local pollution, or the pollution from the Batumi petroleum
refinery);
5. There is shown, that in river waters the increased values of TPH in summer
period and decreased values in autumn are stipulated by the variation of
water level. The same reasons cause the similar changes in sea waters.
This work has been executed within the framework of project
#GNSF/ST07/5-199
“Complex ecological and microclimatic research of resort zone
Ureki-Shekvetili”
Thank you for your attention!