Polycyclic Aromatic Compounds in the Atmosphere - A Review Identifying Research 
Needs

Lammel, Gerhard

doi:10.1080/10406638.2014.931870

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Polycyclic Aromatic Compounds in the Atmosphere - A Review Identifying Research Needs

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Lammel, Gerhard
Multiphase Chemistry, Max Planck Institute for Chemistry, Max Planck Society;

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Citation

Lammel, G. (2015). Polycyclic Aromatic Compounds in the Atmosphere - A Review Identifying Research Needs. SI, 35(2-4), 316-329. doi:10.1080/10406638.2014.931870.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0029-257B-5

Abstract

Most of the 16 EPA priority PAHs (or a subset of these) are targeted in the current monitoring of air and air pollution studies. However, other parent PAHs may account for up to another approximate to 10%, nitro-PAHs up to approximate to 20%, and oxy-PAHs for even more. The reactivity in the atmospheric gas and particulate phases is incompletely quantified, in particular with regard to coverage of aerosol matrix diversity and photochemical age. Therefore, the model-based characterization of exposure is still limited. Nitro- and oxy-PAHs pose a higher health risk in ambient air than parent PAHs but have not been measured as extensively so far and are usually not included in monitoring programs. Nitro-PAHs are also interesting as tracers for air pollution source identification and pathways of photochemistry. Among heterocyclic aromatic compounds in ambient air dibenzofuran and dibenzothiophene should be targeted.