ABSTRACT
This chapter addresses the classes of semivolatile and nonvolatile compounds of interest; the state of the art is sampling methodology, and available analytical methodology. Some of the classes of semivolatile and nonvolatile organic compounds of particular interest include: Polycyclic aromatic hydrocarbons (PAHs), Organochlorine pesticides, Organophosphorous pesticides, Polychlorinated biphenyls (PCBs), Chlorinated dibenzodioxins and furans. Lewis and coworkers have conducted considerable research in the sampling and analysis of PCBs and organochlorine/organophos-phorus pesticides in ambient air. The analytical techniques employed for the determination of semivolatile and nonvolatile organic compounds in ambient air are the same as are used for other media. PAHs are determined using either gas chromatography/mass spectrometry or high performance liquid chromatography with fluorescence or ultraviolet absorption detectors. PCBs and organochlorine pesticides are most frequently determined by gas chromatography with electron capture detection. Organophosphorous pesticides are generally determined using either flame photometric detection or thermionic selective nitrogen/phosporus detection.
