Determining fluoride air concentrations by exposing limed filter paper.
D000397:Air Pollution / Q000032:analysis*; D017610:Calcium Compounds; D005374:Filtration; D005459:Fluorides / Q000032:analysis*; D010087:Oxides; D010710:Phosphates
D017610:Calcium Compounds; D010087:Oxides; D010710:Phosphates; C012980:fluorophosphate; C016538:lime; D005459:Fluorides
AIR POLLUTION/determination; FLUORIDES/determination