IPCC Fourth Assessment Report: Climate Change 2007
Climate Change 2007: Working Group I: The Physical Science Basis
Box 7.4 Figure 1

Box 7.4, Figure 1. Probability that the daily maximum eight-hour average ozone concentration will exceed the US National Ambient Air Quality Standard of 0.08 ppm for a given daily maximum temperature based on 1980 to 1998 data. Values are shown for New England (bounded by 36°N, 44°N, 67.5°W and 87.5°W), the Los Angeles Basin (bounded by 32°N, 40°N, 112.5°W and 122.5°W) and the southeastern USA (bounded by 32°N, 36°N, 72.5°W and 92.5°W). Redrawn from Lin et al. (2001).