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Old 11-07-2012, 04:15 AM   #1
Xeratul
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Is there pollution in California relatively to US?


Hi, I would be interested to know your opinion regarding general pollution in Calif (air,o3,...) relatively to average in US.

If you are living in Calif, let us know about some cases.

Thank you
 
Old 11-07-2012, 06:23 AM   #2
H_TeXMeX_H
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I have been to LA, and yes the pollution is bad there. In other areas, it's not so bad.
 
Old 11-07-2012, 06:57 AM   #3
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Why do you want opinions? It should not be hard to look up the actual measurements.

LA has geography/weather that tends to hold air pollution in place (vs. the major eastward drift of air pollution in most places). LA also has stricter rules regarding emissions than almost anywhere outside of California. I haven't seen recent studies, but I expect the concentration of cars combined with the geography/weather effects still dominates and despite stricter rules LA has higher air pollution than US east coast cities.

I have also seen studies on the sulfur portion of air pollution (which 40 years ago was the most serious component of air pollution in US east coast cities). Sulfur travels a long way east in the air, significantly reduced by mountain ranges, but not significantly reduced by long distance over ocean. Almost all the sulfur air pollution in the world is produced in China. That pollution is far worse in China than in California, but sulfur air pollution from China is worse in California than in almost any place other than China itself. Sulfur air pollution in California is worse than being downwind of the worst remaining sulfur emitters elsewhere in the US.
 
Old 11-07-2012, 09:45 AM   #4
rstewart
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Quote:
I have been to LA, and yes the pollution is bad there. In other areas, it's not so bad.
H_TeXMeX_H, than I respectfully suggest that you have never been to the Bay Area (Silicon Valley, San Jose, Santa Clara, etc) during the summer. I used to be a private pilot and live and fly in the Bay Area. When I started taking my lessons, more than 25 years ago, you could get out of the pollution around 3,500 feet. When I stopped flying, about 15 years ago, it took over 6,000 feet to climb out of the "brown haze" over the South Bay... During the warmer months air pollution is a very large and real problem. This can also happen during the colder months, but without the inversion and hopefully some rain, air quality is usually better.
 
  


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