title: On the validity of the acidimetric method for sulfur dioxide survey networks.
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D001530:Belgium; D008722:Methods; D009391:Nephelometry and Turbidimetry; D013458:Sulfur Dioxide / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D013458:Sulfur Dioxide