Figure 1From: Fine-scale spatial variability of heat-related mortality in Philadelphia County, USA, from 1983-2008: a case-series analysis Extreme heat mortality exceedance rates in Philadelphia County, PA. Mortality exceedance rates for Philadelphia county ZCTAs on days following those with 7:00 p.m. local time apparent temperatures greater than 34°C. ZCTAs with mortality rates significantly greater than the background rate are identified by a white cross. The location of Philadelphia International Airport (PHL), the source of meteorological data employed in this study, is represented by the airplane symbol.Back to article page