The use of inferior plants as bioindicators of automobile lead pollution in the area of Annaba (Algeria) (Utilisation des vegetaux inferieurs comme bio indicateurs de la pollution plombique dʹorigine automobile dans la region de Annaba (Algerie))

Of lead pollution in particular has constantly evolved over time, due to the increase in the number of vehicles on the market. Our research is based primarily on the use of a lichen species " Ramalina farinacea " as indicator of organic pollution in the region of Annaba. An appropriate sampling strategy, a spatio-temporal monitoring and measuring certain physiological parameters combined determination of lead allowed us to evaluate not only the state of air quality but also the impact of this pollution on the environment caused by heavy traffic in this area. Statistical analysis of the results brings up correlations ranging from significant to very highly significant between the parameters measured and the levels of lead in the bio-indicator in time and space.