Figure 4From: Associations between ozone and morbidity using the Spatial Synoptic Classification system Meteorological and air quality characteristics of the seven air mass types. Box plots represent median, interquartile range, and overall range of daily maximum 1-hour ozone (ppb), daily maximum temperature (°F), daily average dew point temperature (DPTP, °F), and daily average sea-level pressure (SLVP, tenths of millibar).Back to article page