The effects of ultrafine and fine aerosols on human health by air inhalation. It is worth noting that aerosol particles emitted during biomass burning are the most optically active [20] because of their size, in the submicrometer interval, their accumulation mode particles, and their high content of high-absorbing components. Moreover, the biomass burning activities are usually occurring in the underdeveloped countries located in tropical regions such as Africa, East of Asia and the south of America [21]. Indeed, in these regions of world fire is routinely cooking, heating, and also used for deforestation and seasonal burning of cereal straw and pastures. For these reasons, our attention is focused on aerosols and gaseous emissions during pellets combustion in a household boiler of a small power (8-12kW). for this purpose, different samples were prepared by blending lignocellulosic biomasses; olive mill solid/ liquid wastes and pine sawdust in different mass fractions. Even though the ökofen automatic boiler was designed for being fed with woody pellets, we have conducted these combustion tests to assess gaseous emissions such as CO, CO 2 , C n H m (mainly CH 4 ) and NO x using appropriate gas analyzer. For assessing the aerosol particles an Electrical Low Pressure Induced (ELPI) technique was considered.

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... in industrial field are more exposed to air pollution. It is proven that aerosols produce serious effects on different parts of our body; the skin, the arteries, the lungs, the heart and the eyes as it is illustrated below (Figure 1) [9][10][11][12][13][14][15]. Also, the brain can be affected by aerosols depending on the particle size and charge [16]. ...