Concentrations of ambient air pollutants in both districts were measured using a Versatile Air Pollution Sampler (VAPS) (Pinto et al. 1998).
These areas were selected for intensive air pollution sampling and modeling of PM10 2.5.
Improved time-activity classifications combined with personal continuous air pollution sampling can improve assessments of location-related air pollution exposures for health studies.
These conditions follow the often-used criteria used in air pollution sampling in which a 75% complete sample (hourly data) is acceptable for calculating a daily average.
We assessed fine and coarse particle concentrations, as well as PAH concentrations, from samples collected by the versatile air pollution sampler described by Pinto et al. (1998).
Particle (both fine and coarse) as well as PAH concentrations were determined from samples collected by Versatile Air pollution Sampler (VAPS) [ 17].
However, high-volume samplers are more typically employed in ambient air pollution sampling than in residential exposure monitoring because they are larger, noisier, and less portable than low-volume samplers and often require electrical power to operate.
In addition, we measured concentrations of ambient PM2.5 mass (0900 0900 hours) with a 3000K Versatile Air Pollution Sampler (URG Corp., Chapel Hill, NC, USA) (Williams et al. 2000) located on the HSF rooftop approximately 30 m above ground level.
CD: Cluster of differentiation; NK Naturall killer cells; PAH: Polycylic aromatic hydrocarbons; PM2.5 -Particulate matter < 2.5 microns; SO2 -Sulfur dioxide; NOx -Nitrogen oxides; VAPS: Versatile air pollution sampler; BaP: Benzopyrene; LMP: Last menstrual period; SD: standard deviations.
