TY - JOUR
T1 - Chemical and photochemical degradation of polycyclic aromatic hydrocarbons in the atmosphere
AU - Valerio, Federico
AU - Bottino, Patrizia
AU - Ugolini, Donatella
AU - Cimberle, Maria Roberta
AU - Tozzi, Giulio Andrea
AU - Frigerio, Alberto
PY - 1984
Y1 - 1984
N2 - Results of studies on chemical and photochemical transformations of polycyclic aromatic hydrocarbons (PAH) are reviewed. Various parameters may modify the kinetics of these reactions, such as light intensity, concentration of gaseous pollutants (NOx, SOx, O3), chemico-physical characteristics of particulates or substrates into which the PAH are adsorbed. Depending on these variables, the half-life of BaP varies from 10 to 104 300 min. The possibility of artefact formation during sampling is discussed. The necessity of clarifying mechanisms for these phenomena, in order to correctly evaluate the risks for exposed populations, is emphasized.
AB - Results of studies on chemical and photochemical transformations of polycyclic aromatic hydrocarbons (PAH) are reviewed. Various parameters may modify the kinetics of these reactions, such as light intensity, concentration of gaseous pollutants (NOx, SOx, O3), chemico-physical characteristics of particulates or substrates into which the PAH are adsorbed. Depending on these variables, the half-life of BaP varies from 10 to 104 300 min. The possibility of artefact formation during sampling is discussed. The necessity of clarifying mechanisms for these phenomena, in order to correctly evaluate the risks for exposed populations, is emphasized.
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U2 - 10.1016/0048-9697(84)90350-4
DO - 10.1016/0048-9697(84)90350-4
M3 - Article
AN - SCOPUS:0021643813
SN - 0048-9697
VL - 40
SP - 169
EP - 188
JO - Science of the Total Environment
JF - Science of the Total Environment
IS - 1
ER -