For the sampling of polycyclic aromatic hydrocarbons (PAHs) the following sampling systems are available at the GSA:
- PM4-2 with a cartridge according to VDI 2463/7 (stationary sampling)
- GSA50 with a cartridge according to VDI 2463/7 (stationary sampling)
Stationary sampling is usually carried out with PM4-2.
The air loaded with polycyclic aromatic hydrocarbons (PAH) is sucked in by means of a volume flow-controlled pump (PM4-2) with a volume flow of 46 l/ min. We recommend a measurement period of 2 h. Polycyclic aromatic hydrocarbons (PAH) are sucked out of the air through the cartridge and adsorbed.
A binder-free glass fibre filter and two polyurethane foams, each with a diameter of 50 mm, are used as filter media.
The analytical determination is subsequently carried out by HRGC/LRMS (high-resolution gas chromatography/low-resolution mass spectrometry).
A large number of polycyclic aromatic hydrocarbons (PAHs) are carcinogenic or cancer-promoting compounds with benzo(a)pyrene as the lead substance.
A guideline value of 1.3 ng/m3 for benzo(a)pyrene in indoor air (without specific sources) has been proposed by the Federal Committee for Air Pollution (LAI) (Ministry for Environment, Agriculture, Conservation and Consumer Protection, Düsseldorf).