环境工程导论大气(1)
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环境工程导论大气(1)
2020/8/29
Atmosphere
• The thin envelope of life-sustaining gases surrounding the earth is divided into several spherical layers characterized by abrupt changes in temperature ,the result of differences in the absorption of incoming solar energy .
0.000008 O3
Formula weight Volume ratio
%Fra Baidu bibliotek
20.18
0.0018
4.003
0.0005
44.01
0.03
2.016
0.00005
48.00
0.000001
Atmospheric Structure
• Troposphere • Stratosphere • Mesosphere • Thermosphere • Exosphere
atmospheric humidity
wind
• directions
wind
• strength
amount of rainfalls
ways
• Dew • Fog • Rain • Hail • Snow
• Dew
• Fog
• Rain
• Hail
• Snow
The meteorological factors which influence the
atmospheric pollution.
• The average wind and turbulence
• Characteristics of atmosphere
• System between atmosphere and earth-surface
• Large-scale weather situation
The composition of dry clean air
ingredient
N2 O2 Ar Kr Xe
Formula weight
28.01
Volume ratio
%
78.09
ingredient
Ne
32.00
20.95
He
39.94 83.70 131.30
0.93
CO2
0.0001 H2
Troposphere 对流层
Stratosphere 平流层
Mesosphere 中间层
Thermosphere 热成层
Exosphere 散逸层
Major meteorological factors
atmospheric temperature
atmospheric pressure
Source: G. Tyler Miller ,Jr. Environmental science
The composition of atmosphere
dry clean air water vapour solid particles
The composition of dry clean air
• The underlying surface conditions
2020/8/29
Atmosphere
• The thin envelope of life-sustaining gases surrounding the earth is divided into several spherical layers characterized by abrupt changes in temperature ,the result of differences in the absorption of incoming solar energy .
0.000008 O3
Formula weight Volume ratio
%Fra Baidu bibliotek
20.18
0.0018
4.003
0.0005
44.01
0.03
2.016
0.00005
48.00
0.000001
Atmospheric Structure
• Troposphere • Stratosphere • Mesosphere • Thermosphere • Exosphere
atmospheric humidity
wind
• directions
wind
• strength
amount of rainfalls
ways
• Dew • Fog • Rain • Hail • Snow
• Dew
• Fog
• Rain
• Hail
• Snow
The meteorological factors which influence the
atmospheric pollution.
• The average wind and turbulence
• Characteristics of atmosphere
• System between atmosphere and earth-surface
• Large-scale weather situation
The composition of dry clean air
ingredient
N2 O2 Ar Kr Xe
Formula weight
28.01
Volume ratio
%
78.09
ingredient
Ne
32.00
20.95
He
39.94 83.70 131.30
0.93
CO2
0.0001 H2
Troposphere 对流层
Stratosphere 平流层
Mesosphere 中间层
Thermosphere 热成层
Exosphere 散逸层
Major meteorological factors
atmospheric temperature
atmospheric pressure
Source: G. Tyler Miller ,Jr. Environmental science
The composition of atmosphere
dry clean air water vapour solid particles
The composition of dry clean air
• The underlying surface conditions