Exploratory Studies of PM_10 Receptor and Source Profiling by GC/MS and Principal Component Analysis of Temporally and Spatially Resolved Ambient Samples

摘要

For a recent exploratory study of particulate matter (PM) compositions, origins, and impacts in the El Paso/Juarez (Paso del Norte) airshed, the authors relied on solvent ex- traction (SX)-gas chromatography/mass spectrometry (GC/MS) procedures to characterize 24-hr quartz fiber (QF) filter samples obtained from nine spatially distributed high- volume (Hi-Vol) PM_10 samplers as well as on thermal de- sorption (TD)-GC/MS methods to characterize 45 time-resolved (2-hr) filter samples obtained with modified 1m~3/hr PM_10 samplers.