Proculation wrote:
From what I know from smog, it is mainly due to ozone and nitrogen oxides. Both coming from exhaust pollution, not particulates.
Kind of maybe. As I understand it ozone is what happens when oxygen links it's molecules together in groups of 3. It's invisible, but yeah, it's in smog. You just don't see it. The way I heard it when sunlight hits nitrogen oxides, and volatile organic compounds, oxygen molecules peel off, and form O3 (ozone). I don't know, maybe it works the other way too - Already present O3 say peeling of an O and turning Nitrogen monoxide into dioxide, or something, I don't know.
Of course, there's particulates in smog. Why wouldn't there be? By smog you mean what's described by the contraction of Smoke and Fog, right? Or are you talking specifically about the photochemical thing?
Quote:
Particulate matter (PM) includes dust, dirt, soot, smoke and liquid droplets directly emitted into the air by sources such as factories, power plants, cars, construction activity, fires and natural windblown dust. Particles formed in the atmosphere by condensation or the transformation of emitted gases such as SO2 and VOCs are also considered particulate matter.
http://scorecard.org/env-releases/cap/p ... cl#EDF-077Quote:
As of our GDP going up and pollution going down, that's just because we switched from a primary/secondary economy to a tertiary economy with big value-added products. We produce more wealth with less.
Yeah maybe, but here's what I'm trying to get across.
1. Not all pollution has been sent to China from America thus leaving the US in a pristine condition. I could jump in the car right now, and take a short jaunt to an American factory, refinery, and a mill. They're not difficult to find.
2. Air pollution nastiness remains, and grows with the population. For example 49% of America's electricity is supplied burning coal. There's more cars on the road since the pollutants on that graph started to drop.
3. Wanna know how a catalytic converter works?
http://auto.howstuffworks.com/catalytic-converter1.htm