Fig. 2From: Neuropathology changed by 3- and 6-months low-level PM2.5 inhalation exposure in spontaneously hypertensive ratsCharacterization of elements in particulate matter with an aerodynamic diameter of < 2.5 μm (PM2.5) for an initial 3 months of exposure and a subsequent 3 months of exposure using energy dispersive x-ray fluorescence (ED-XRF) spectrometry. S, K, Si, and Fe were dominant in the first 3-month and subsequent 3-month PM2.5 samplesBack to article page