Real-Time Monitoring of Polycyclic Aromatic Hydrocarbons associated with particles in high traffic flow roads of the Aburrá Valley Metropolitan Area (AMVA)

Abstract

Exposure to Polycyclic Aromatic Hydrocarbons (PAH) associated with respirable particulate matter constitutes an important risk factor for health. These substances are produced mainly by combustion processes, which can be significant on high-traffic roads. The Aburra Valley is declared an atmospheric basin contaminated by particulate matter as a consequence of topographic, meteorological, climatic, demographic and anthropogenic factors. Pollution peaks coincide with the hours of greatest displacement of the population In this context, the spatial evaluation of the PAH concentrations associated with particulate matter was proposed by means of a photoelectric aerosol sensor during short trips ( 0.5) were established between them. Some areas of high PAH concentration that could be attributed to vehicular dynamics were identified through a geographic information system. The results show that road users under these high traffic flow conditions would be exposed to an average inhalation dose of PAH greater than 0.12 μg. Kg-1. day which reveals the need to implement immediate management tools for the monitoring of these substances.