title: X-ray analysis of particulate matter collected in an environmental monitoring device.
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D008670:Metals / Q000032:analysis; D008722:Methods; D008991:Monitoring, Physiologic / Q000295:instrumentation; D013057:Spectrum Analysis / Q000379:methods
chemical_list: D000393:Air Pollutants; D008670:Metals