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Redlemon · 06-13-2005, 10:04 AM

Remember, when we talk about ozone, there are two seperate things. One is the ozone layer, which we want to save. The other is ground-level ozone, which we want to reduce. Ground level ozone is created by the reactions of nitrogen oxides and volatile organic compounds with heat and sunlight. Ground level ozone is significantly lower compared to 50 years ago. There are still many non-attainment areas in the US (places where the concentrations exceed the EPA-mandated maximum conentration levels), and those are being worked on.

06-13-2005, 10:04 AM	#3 (permalink)
Redlemon Devoted Donor Location: New England	Remember, when we talk about ozone, there are two seperate things. One is the ozone layer, which we want to save. The other is ground-level ozone, which we want to reduce. Ground level ozone is created by the reactions of nitrogen oxides and volatile organic compounds with heat and sunlight. Ground level ozone is significantly lower compared to 50 years ago. There are still many non-attainment areas in the US (places where the concentrations exceed the EPA-mandated maximum conentration levels), and those are being worked on. __________________ I can't read your signature. Sorry.