Krasnodar GRES Project Volume I11 Environmental Assessment

Krasnodar GRES Project Volume I11 Environmental Assessment Krasnodar GRES Project Volume I11 Environmental Assessment

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Table 4.13 Average Long-Term Intensity of Inversions (Isotherms), Centigrade (Minvody metlstn) Months I I I Ill Iv V VI VII Vlll I x X XI XI I Altitude of the Lower Boundary of Inversions (Isotherms), km Earth 0,Ol-0,19 0,19-0,99 6,2 517 3,6 2,9 2, 5 212 212 21 1 a6 413 5 , 6 G12 Elevated inversions that may occur above the stack at the proposed Krasnodar GRES power plant at 200-500 m and inhibit air ascent have the average @ recurrence of 10-15%. The average thickness of such inversions is 300-400 m with intensity of 1-4 degrees. 63 5 17 519 414 Il8 114 1 I3 117 3,o 319 6,4 63 3,1 413 2,4 1 14 2,2 113 1 ,o 110 l12 2,6 3,O 41 1 Temperature sounding tests at the Perepravnaya meteorological station Veselyi hail control station agree with the data of the Minvody serological station accepted as long-term values for the Krasnodar GRES site. Average inversion recurrence rate, starting at the ground level, for the Krasnodar GRES site will be 30-50%. The thickness will be 300-500 m with intensity of 2-6 degrees. In winter, inversion thickness and intensity is greater than in the warm period of the year. During temperature sounding at the Perepravnaya met station in the summer of 1987 at 0-200 m altitude, a 30% occurrence of inversions and isotherms were observed. Of those cases, approximately 60% were observed in the morning hours. Their intensity was insignificant - 0.0 to 5 degrees, thickness - 50-100 m. PAGE 4-1 3

4.1.3 Air Quality Impact by Nitrogen Oxides The background concentrations of emissions into the atmosphere in Mostovskoy are based on the data of the Krasnodar hydrometeorologic regional center. These concentrations take into account the emissions of motor transport vehicles and heating boiler houses. 4.1.4 General Air Quality Impact Including Radiation General air quality in terms of pollutants is based on their background concentration and is independent of solar radiation. Table 4.14 Background Concentration of the Main Air Pollutants for Mostovskoy Village the Krasnodar Territory Pollutants Suspended matter NO2 m SO2 Mostovskoy Background Value, mg/m3 0.3 0.03 0.8 0.05 4.1.5 Main Sources of Nitrogen Oxides Concentration Average Daily Maximum Permissible Concentration, mg/m3 Russian Standards', World Bank Standards 0.05 0.1 0.085 in 30 min. 1 .O 0.05 --- 0.1 As seen from the background concentration values (Table 4.141, nitrogen oxides in the atmospheric air of the power plant construction site are not in excess of the maximum permissible concentration values. Table 4.15 summarizes air pollution by the enterprises in the Mostovskoy and Labinsk Districts PAGE 4-1 4

Table 4.13<br />

Average Long-Term Intensity of Inversions (Isotherms), Centigrade (Minvody<br />

metlstn)<br />

Months<br />

I<br />

I I<br />

Ill<br />

Iv<br />

V<br />

VI<br />

VII<br />

Vlll<br />

I x<br />

X<br />

XI<br />

XI I<br />

Altitude of the Lower Boundary of Inversions (Isotherms), km<br />

Earth<br />

0,Ol-0,19<br />

0,19-0,99<br />

6,2<br />

517<br />

3,6<br />

2,9<br />

2, 5<br />

212<br />

212<br />

21 1<br />

a6<br />

413<br />

5 , 6<br />

G12<br />

Elevated inversions that may occur above the stack at the proposed <strong>Krasnodar</strong><br />

<strong>GRES</strong> power plant at 200-500 m and inhibit air ascent have the average<br />

@ recurrence of 10-15%. The average thickness of such inversions is 300-400 m<br />

with intensity of 1-4 degrees.<br />

63<br />

5 17<br />

519<br />

414<br />

Il8<br />

114<br />

1 I3<br />

117<br />

3,o<br />

319<br />

6,4<br />

63<br />

3,1<br />

413<br />

2,4<br />

1 14<br />

2,2<br />

113<br />

1 ,o<br />

110<br />

l12<br />

2,6<br />

3,O<br />

41 1<br />

Temperature sounding tests at the Perepravnaya meteorological station Veselyi<br />

hail control station agree with the data of the Minvody serological station<br />

accepted as long-term values for the <strong>Krasnodar</strong> <strong>GRES</strong> site.<br />

Average inversion recurrence rate, starting at the ground level, for the <strong>Krasnodar</strong><br />

<strong>GRES</strong> site will be 30-50%. The thickness will be 300-500 m with intensity of 2-6<br />

degrees.<br />

In winter, inversion thickness and intensity is greater than in the warm period of<br />

the year.<br />

During temperature sounding at the Perepravnaya met station in the summer of<br />

1987 at 0-200 m altitude, a 30% occurrence of inversions and isotherms were<br />

observed. Of those cases, approximately 60% were observed in the morning<br />

hours. Their intensity was insignificant - 0.0 to 5 degrees, thickness - 50-100 m.<br />

PAGE 4-1 3

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