SAMPLING ATMOSPHERIC FLUORIDES WITH GLASS FIBER FILTERS.
D000397:Air Pollution; D002623:Chemistry Techniques, Analytical; D005374:Filtration; D005459:Fluorides; D005898:Glass; D013048:Specimen Handling
C009753:fiberglass; D005459:Fluorides
AIR POLLUTION; CHEMISTRY, ANALYTICAL; FILTRATION; FLUORIDES