PMID: 603113Jan 1, 1977

Determination of the acidity of particulate matter in the urban and industrial atmospheres

Annali Dell'Istituto Superiore Di Sanità
D BroccoM Possanzini


A new method is described for the determination of the strong acidity of particulate matter. The method consists in the volumetric titration of an aqueous extract by means of a strong acid. The titration is performed potentiometrically using a glass electrode and the end point is obtained by extrapolation using a Gran's plot. The lowest concentration of strong acid detectable in a sample is about 0.5 microgram/ml expressed as H2SO4. The method has been applied for the determination of the strong acidity content in airborne particulate matter samples and in dusts emitted from industrial sources.

Related Concepts

Air Pollutants, Environmental
Air Pollutants, Occupational
Air Pollution
House Dust
Environmental Exposure
Sulfuric Acids
Urban Population

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