Polycyclic aromatic hydrocarbons HAP

1.General characteristics

HAP polynuclear aromatic hydrocarbons are compounds formed from 4 to 7 benzene nuclei.
These compounds result from the combustion of fossil materials (diesel engines) in its particulate gaseous form.
The most studied is benzo (a) pyrene. Polynuclear aromatic hydrocarbons are known to be carcinogenic for humans.

2. Methods of measurement

The reference method for BaP sampling and measurement is that provided in the standard SR EN 15549 - Ambient air quality. Standardized method for measuring the concentration of benzo (a) pyrene in ambient air. In the absence of CEN standards for the sampling and analysis of HAP, the method described in SR ISO 12884 - ambient air is used. Determination of total polycyclic aromatic hydrocarbons (gas phase and particulates). Sampling on adsorbent and filter followed by gas chromatography / mass spectrometry

3. Norms

Law no. 104 of June 15, 2011 
Polycyclic aromatic hydrocarbons PAHs
Benzo (a) pyrene 1 ng / m 3 - the target value for the total content of the PM10 fraction averaged over a calendar year