title: Mass spectral studies of airborne particulates and possible pollution sources.
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution; D000401:Aircraft; D001554:Benzene; D005069:Evaluation Studies as Topic; D013058:Mass Spectrometry; D000432:Methanol; D008722:Methods
chemical_list: D000393:Air Pollutants; D001554:Benzene; D000432:Methanol