Browsing FAS Scholarly Articles by Keyword "background ozone"
Now showing items 1-4 of 4
-
Background ozone over the United States in summer: Origin, trend, and contribution to pollution episodes
(Wiley-Blackwell, 2002)Observations indicate that ozone (O3) concentrations in surface air over the United States in summer contain a 20–45 ppbv background contribution, presumably reflecting transport from outside the North American boundary ... -
Improved estimate of the policy-relevant background ozone in the United States using the GEOS-Chem global model with 1/2° × 2/3° horizontal resolution over North America
(Elsevier BV, 2011)The policy-relevant background (PRB) ozone is defined by the US Environmental Protection Agency (EPA) as the surface ozone concentration that would be present over the US in the absence of North American anthropogenic ... -
Surface Ozone Background in the United States: Canadian and Mexican Pollution Influences
(Elsevier, 2009)We use a global chemical transport model (GEOS-Chem) with 1° × 1° horizontal resolution to quantify the effects of anthropogenic emissions from Canada, Mexico, and outside North America on daily maximum 8-hour average ozone ... -
Variability in surface ozone background over the United States: Implications for air quality policy
(Wiley-Blackwell, 2003)The U.S. Environmental Protection Agency (EPA) presently uses a 40 ppbv background O3 level as a baseline in its O3 risk assessments. This background is defined as those concentrations that would exist in the absence of ...