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Algorithms VI software industry air pollution

                 

DISPER: 1 indoor air quality solutions 2 environmental science and health 3 air emission monitoring 4 environmental assessment 5 industry air pollution pollution in our atmosphere 7 vehicles air pollution 8 gas dispersion modeling 9 indoor air quality measurement 10 acid rain and air pollution 11 industrial air exhaust 12 air pollution effects 13 acid rain pollution 14 air quality monitoring 15 air pollution model

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All Conditions - Distance Less Than Distance to Final Rise

Where gradual rise is to be estimated for unstable, neutral, or stable conditions, if the distance downwind from source to receptor, x, is less than the distance to final rise:

he=hs+1.60 [(Fb x2)1/3/us]      (21)

This height will be used only for buoyancy dominated conditions; should it exceed the final rise for the appropriate condition. For momentum dominated conditions, the following equations are used to calculate a distance dependent momentum plume rise:

a) unstable conditions:

he=hs+[3Fmx/(betj2us2)]1/3      (22)

where x is the downwind distance, with a maximum value xmax:

xmax=4ds(vs+3us)/(vsus)   for Fb=0                 (23)

xmax=49 Fb5/8             for 0 < Fb < 55 m2s3      (24)

xmax=119 Fb2/5            for Fb > 55 m2s3         (25)

b) stable conditions:

he=hs+(3Fm)1/3{sin[x s1/2/us]}1/3[betj2uss1/2]-1/3   (26)

where x is the downwind distance, with a maximum value xmax:

xmax=0.5 pi us/s1/2            (27)

The jet entrainment coefficient, betj, is given by,

betj=(1/3)+(us/vs)       (28)

If the distance-dependent momentum rise exceeds the final rise for the appropriate condition, then the final rise is substituted instead.

 

 

 

industry air pollution

Industry air pollution: The indoor air quality for industries can be studied by means of this software. The form of the pollution plumes can be obtained for different with velocities and atmospheric conditions.