This technique (trademark Li-HAP ®) uses
the measurement of 16 molecules considered as tracers (HAP16) in
lichens according to a precise mode of sampling. The analysis are
done by certified laboratories.
The Environmental deposits of HAP16 are measured
and integrated into a comparative interpretation of local witnesses.
The possibilities of diagnosis and follow-up were revealing during
the setting of the technique according to the variations of the
PAH lichens content according to the variations of the lichen content
with the traffic intensity and urban density.
The content of the HAP in lichens is in balance with the average
Our recent studies show the interest of the
follow-up of the Atmospheric HAP in cities within the establishment
of public transport network.
The profile of the compound PAH16 can vary
according to the nature of emissions (Industry, urban density, traffic).
Points of biomonitoring are then selected.
Example of differentiation of the
compound HAP according to sources