ATMOSPHERIC PAHs DETERMINATION: INFLUENCE OF THE AIR ...

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• EXCHANGE OF PAHs BETWEEN GASEOUS AND PARTICULATE PHASES PM PAH’s - + GASEOUS PHASE ADSORBED PAH’s FILTER SURFACE • Artifact negative: some of the particulate organic compounds is volatilized • Artifact positive: a portion of the organic vapor phase is adsorbed onto the filter surface or onto the deposited particulate matter Atmospheric Environment, 33, 4977-4986 (1999) Chemosphere, 49(3), 331-340 (2002)
GOAL THE OBJECTIVE OF THIS WORK WAS: TO DETERMINATE A SAMPLING TIME PROGRAM THAT SATISFIES THE FOLLOWING CONDITIONS: Collect enough PAHs amount to be measurable by GC-FID and GC-MS Minimize the occurrence of sampling artifacts, and generate a representative sample for a 24 hour period
Page 1 and 2: LABORATORIO DE QUIMICA AMBIENTAL AT
Page 3: PROBLEMS IN SAMPLING PROCEDURES SAM
Page 7 and 8: Sampling Methodology Parque O'Higgi
Page 9 and 10: Sampling Times Program (STP) Labora
Page 11 and 12: Real Samples Chromatograms of PAHs,
Page 13 and 14: Total PAH concentration obtained at
Page 15 and 16: • Were made a concentration analy
Page 17 and 18: PUF Cleaning comparison between Aut
Page 19 and 20: Chromatogram of 1 µl standard of 1
Page 21 and 22: Samples processing of PAHs in gas p

ATMOSPHERIC PAHs DETERMINATION: INFLUENCE OF THE AIR ...

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