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bs sponge private limited - India Environment Portal

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B.S. SPONGE PRIVATE LIMITED<br />

Village: Taraimal, Tehsil: Gharghoda, District: Raigarh, (C.G.)<br />

REIA Report for the Proposed Mini Integrated Steel Plant<br />

Chapter – 4<br />

TABLE - 4.1.1<br />

LATERAL TURBULENCE CRITERIA FOR INITIAL ESTIMATE OF STABILITY<br />

Initial estimate of Pasquill Stability<br />

Category<br />

A<br />

Standard deviation of horizontal wind<br />

direction fluctuations, s A, in degrees<br />

22.5 = σA<br />

B 17.5 = σA < 22.5<br />

C 12.5 = σA < 17.5<br />

D 7.5 = σA < 12.5<br />

E 3.8 = σA < 7.5<br />

F σA < 3.8<br />

TABLE - 4.1.2<br />

WIND SPEED ADJUSTMENTS FOR DETERMINING FINAL ESTIMATE OF PG<br />

STABILITY CATEGORY FROM sA<br />

Initial Estimated<br />

Category<br />

10 m Scalar Wind<br />

Speed (US) (m/s)<br />

Final Estimate of<br />

Stability Category<br />

Day time A US

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