Determination of volatile polynuclear aromatic hydrocarbons in air from particulate profiles by means of partial least-squares regression

The possibility of estimating the total (particulate and gaseous) concentrations of volatile polynuclear aromatic hydrocarbons (PAH's) in air on the basis of measured concentrations of PAH's in particles by means of partial least-squares regression (PLS), is discussed. The results show that the estimation can be good for samples exposed to the same source and collected under similar weather conditions.