Future changes in global climate and in ozone-precursor emissions over this century resulting from human-related activities are likely to continue to have important consequences on surface ozone pollution over the contiguous United States. Factors affecting U.S. surface ozone include global and regional climate, domestic anthropogenic/natural precursor emissions, and anthropogenic/natural precursor emissions outside the U.S. associated with the pollutant transport. Given the adverse effects of ozone on human health, agriculture and ecosystems, it is critical to understand the potential effects of these factors on ozone. However, large uncertainties exist in evaluating future ozone changes due to the uncertainties in climate change and in emissions, especially the latter which largely determine the directions of future ozone trend. Uncertainties in the economic/population growth, technological/societal development and natural climatic variation challenge our ability to evaluate future levels of ozone.Chapter 1. Introduction Surface ozone pollution is one of the major air quality issues for the United States. Unlike stratospheric ozone which protects us from dangerous levels of ultra-violet (UV) radiation, the existence of ozone near the earthanbsp;...
|Title||:||Projections of Future Changes in Surface Ozone Concentrations Over the United States, Effects of Pollutant Transport, and Uncertainty Analyses|
|Publisher||:||ProQuest - 2008|