Pollutants (1 Viewer)

[#23]

Hello, Does anyone here know where the following pollutants are found in the atmosphere? I can't seem to find any answers.
Carbon Monoxide
Nitrogen Oxides
Volatile organic compounds
Carbon Dioxide
Sulfur Dioxide
Particulates
Lead

Thanks in advance

 

[currysauce]

Hello, Does anyone here know where the following pollutants are found in the atmosphere? I can't seem to find any answers.
Carbon Monoxide
Nitrogen Oxides
Volatile organic compounds
Carbon Dioxide
Sulfur Dioxide
Particulates
Lead

Thanks in advance

THey look like they are mostly found in the troposphere

... but traces may be found in stratosphere...

 

[#23]

So, they are all found in the troposphere but for each of them, traces can be found in
the stratosphere?

 

[xiao1985]

any gas are capable of diffusing into stratosphere... inlcuding the pollutants in troposphere... it's just that the process is random and only minute amount is diffused into stratosphere...

 

[Casmira]

so how do the CFC so easily get into the statosphere
does it also depend on atomic weight of the element?

 

[physician]

so how do the CFC so easily get into the statosphere
does it also depend on atomic weight of the element?

the direct effect of CFC use is the long term depletion of the ozone layer,
CFCs undergo photodisociation thereupon they realese chlorine atom radicals, and it is these radicals which destroy/deplete more ozone molecules...

(1) Cl (radical) _(g) + O₃ ---> ClO _(g) + O_{2 (g)}

(2) ClO _(g) + O _(g) --> O_{2 (g)} + Cl (radical) _(g)

I'm thinking that this is why CFCs are able to get into the stratosphere easily

I feel that i havn't successfully answered ur question... someone correct me on this if it's wrong/incomplete

 

[xiao1985]

as i heard, CFC is inert ... in troposphere, hence it has being widely used in refridgrators, which is rather ironic, as it will not interact with the atmosphere such as HCFC or HFC would...

HCFC, because it is capable of interacting with the atmopheric water molecule, is easily "washed out" by rain etc once it rises... that i believe has to do with the permenant dipole moment of HCFC. This will reduce the chance for which it diffuse into stratosphere. (as it doesn't stay at the borderline of troposphere and stratosphere that much)