作者: Andrew A. May , Albert A. Presto , Christopher J. Hennigan , Ngoc T. Nguyen , Timothy D. Gordon
DOI: 10.1016/J.ATMOSENV.2013.04.060
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摘要: Abstract The gas-particle partitioning of the primary organic aerosol (POA) emissions from fifty-one light-duty gasoline vehicles (model years 1987–2012) was investigated at California Air Resources Board Haagen–Smit Laboratory. Each vehicle operated over cold-start unified cycle on a chassis dynamometer and its were sampled using constant volume sampler. Four independent yet complementary approaches used to investigate POA partitioning: sampling artifact correction quartz filter data, dilution sampler into portable environmental chamber, heating in thermodenuder, thermal desorption/gas chromatography/mass spectrometry analysis samples. This combination techniques allowed measurements be made across wide range atmospherically relevant conditions – temperatures 25–100 °C concentrations