Evaluation of Air Pollution by Aerosol Particles Due to Road Traffic: A Case Study from Algeria

Air pollution by the aerosol particles was evaluated in a case study site located east of Algiers in Algeria in North Africa. The location was influenced by road traffic emissions. The measures, by size distribution, were done using a HVS-PM-10 sampler equipped of cascade impactors in four levels (brand Andersen). The results showed that air pollution by the inhalable particles (PM-10), the alveolar particles (PM-2.5) and the very fine particles (PM-1) was very high. The average content in PM-10 rose to 75.2 μg/m3. With a content of 36.1 μg/m3, the alveolar particles PM-2.5 constituted in mass about 48% of the PM-10. More than 1/3 of the PM-10 consisted of a very fine fraction of the PM-1. The PM-10 followed a bi-modal distribution. There was a correlation between the very fine and alveolar particles.