Peroxyacetil nitrates (PAN) is the most characteristic photoxidant of a range of secondary pollutants formed by the photochemical reaction of hydrocarbons with nitrogen oxides in the atmosphere: it is phytotoxic and shows an increasing role in human health effects due to ambient air exposure, expecially in presence of high ozone concentrations. In this paper we report PAN concentrations determined in Rome urban area during winter- and summer-period. PAN measurements were carried out by means of a gas-chromatograph equipped with an ECD detector. Furthermore, there are investigated the relationship between PAN and the variable Ox (=NO2+O3) which describes the oxidation process evolution.
|Titolo:||Determination and role of peroxyacetil nitrate in photochemical processes in atmosphere|
AVINO, Pasquale (Corresponding)
|Data di pubblicazione:||2010|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|