Indoor air pollution

People spend most of their time in indoor environments. The different habits and activities, the ventilation, the infiltration of pollutants from outside, as well as the presence of internal sources of contaminants, are all factors that can affect the quality of the indoor environment.

The composition of air within the everyday life and work environments is often characterized by a mixture of compounds much more variable in respect to what is found in the outdoor. Sometimes the concentration values of pollutant are higher compared to those present at the same time in the outside environment or, more commonly, there are pollutants not detectable outside.

The knowledge related to indoor pollution, though well documented by numerous studies of the international scientific community, still suffers from a lack of comparison of data and results. Experimental data show cases of indoor pollution also in Italy, especially localized in large urbanized areas. The different habits and activities within the indoor environments, together with the private nature of the houses , do not allow to provide a standardized monitoring activity. Besides, there’s a lack of regulation within the Italian legal framework with regard to indoor pollution, whose limits and reference methods are consequently not defined. Therefore it is also not easy to identify indicators to provide a general description of the indoor pollution phenomenon and of its pressures and impacts on health.

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