Distribution of n-alkanes, polynuclear aromatic hydrocarbons and nitrated polynuclear aromatic hydrocarbons between the fine and coarse fractions of inhalable atmospheric particulates.
The distribution ratios of n-alkanes, polynuclear aromatic hydrocarbons (PAHs) and nitrated PAH components between fine and coarse fractions of soot has been investigated in downtown Rome through three field campaigns carried out at different times of the year. The preferential accumulation of almost all species investigated onto fine particles has been observed in all field experiments performed. Moreover, nitrated PAHs had varied distributions, according to the origin of their occurrence in the atmosphere; in fact, congeners of photochemical origin accumulated more in fine particles than those released by primary sources.
Istituto sull'Inquinamento Atmosferico CNR, Monterotondo Scalo RM, Italy.
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A
Cecinato
F
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Marino
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P
Di Filippo
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L
Lepore
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M
Possanzini
D000393:Air Pollutants / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D006838:Hydrocarbons / Q000032:analysis*; D019570:Inhalation Exposure; D013058:Mass Spectrometry; D010316:Particle Size
D000393:Air Pollutants; D006838:Hydrocarbons