what component of air will you find the more in(a)Coastal areas and(b) industrial areas
Answers
Chemical Composition of Air: Standard Air Components and Site-specific Additions:
"Air" is the name we give to the mixture of gases which make up the Earth's atmosphere. The composition, physical, and chemical properties of air are very similar everywhere.
It is useful to think of the air which we encounter every day as being a locally-produced mixture of three types of "ingredients":
Standard dry air, which is mainly composed of three gases: nitrogen (about 78%), oxygen (about 21%), and argon (about 1%). Together, these three gases make up 99.96% of dry air. All three can be economically recovered as industrial gas products. Standard dry air also contains a small amount of carbon dioxide, and very small amounts of neon, helium, krypton, hydrogen and xenon (see table below).
Water vapor (humidity). The amount of water vapor in air at ground level can vary quite a bit - from almost zero to about 5 percent. Many factors influence the amount of humidity in the air at a given location and time.
Other constituents (which are usually present in trace amounts) which reflect local conditions
The Composition of Standard Dry Air is shown in Table 1. The Physical Properties of Standard Dry Air are shown in Table 2. They reflect the mix of standard air components shown below.
Table 1: Standard Composition of Dry Air (Detailed Analysis):
Gas % by Volume % by Weight Parts per Million (by Volume) Chemical Symbol Molecular Weight
Nitrogen 78.08
75.47
780790 N2 28.01
Oxygen 20.95 23.20 209445 O2 32.00
Argon 0.93 1.28 9339 Ar 39.95
Carbon Dioxide 0.040 0.062 404 CO2 44.01
Neon
0.0018
0.0012
18.21 Ne 20.18
Helium
0.0005
0.00007
5.24 He 4.00
Krypton
0.0001
0.0003
1.14 Kr 83.80
Hydrogen
0.00005
Negligible 0.50 H2 2.02
Xenon
8.7 x 10-6
0.00004
0.087 Xe 131.30
Sometimes, we do think about air. We recognize that it is essential for life as we know it. We sometimes worry about what we and others may be doing to local air quality and to the composition of our shared global atmosphere.
What is air? What is air made up of? What are some of its characteristics? What useful products are directly produced from air? This page provides answers to these and other questions.
Chemical Composition of Air: Standard Air Components and Site-specific Additions:
"Air" is the name we give to the mixture of gases which make up the Earth's atmosphere. The composition, physical, and chemical properties of air are very similar everywhere.
It is useful to think of the air which we encounter every day as being a locally-produced mixture of three types of "ingredients":
Standard dry air, which is mainly composed of three gases: nitrogen (about 78%), oxygen (about 21%), and argon (about 1%). Together, these three gases make up 99.96% of dry air. All three can be economically recovered as industrial gas products. Standard dry air also contains a small amount of carbon dioxide, and very small amounts of neon, helium, krypton, hydrogen and xenon (see table below).
Water vapor (humidity). The amount of water vapor in air at ground level can vary quite a bit - from almost zero to about 5 percent. Many factors influence the amount of humidity in the air at a given location and time.
Other constituents (which are usually present in trace amounts) which reflect local conditions
The Composition of Standard Dry Air is shown in Table 1. The Physical Properties of Standard Dry Air are shown in Table 2. They reflect the mix of standard air components shown below.