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The air quality monitoring is an increasingly requirement. However the classic monitoring networks do not allow, for cost reasons, an exhaustive knowledge in many urban areas. AQUARIA, as well as offering the classic active samplers offers the most innovative diffusive samplers。 The Italian D.L n° 81/2008 underlines, in order to assure to the operator the best possible work conditions, the need of continuous microbiological and chemical monitoring through programmed samplings and the use of personal and collective protection systems.