EXPERIMENTAL DETERMINATION OF REACTIVE OXYGEN SPECIES IN TAIPEI AEROSOLS
Resource
JOURNAL OF AEROSOL SCIENCE v.32 n.10 pp.1201-1211
Journal
JOURNAL OF AEROSOL SCIENCE
Journal Volume
v.32
Journal Issue
n.10
Pages
1201-1211
Date Issued
2001
Date
2001
Author(s)
HUNG, HSUEH-FEN
WANG, CHIU-SEN
Abstract
The concentrations of reactive oxygen species (ROS) in various particle size fractions were determined for the Taipei aerosols and for particles in vehicular exhausts. The concentration of ROS in ambient particles had good correlations with the intensity of photochemical reactions. The correlation coefficient between the ROS concentration and the O3 concentration was higher for smaller particles. This indicates that the intensity of photochemical reactions is a major factor affecting ROS concentration in smaller particles, especially in ultrafine particles (aerodynamic diameter < 0.18 mm).
Subjects
Urban aerosol
Fine particles
Fresh aerosol
Aged aerosol
Type
journal article