atmosphere Review Assessment of Indoor-Outdoor Particulate Matter Air Pollution: A Review Matteo Bo 1 ID , Pietro Salizzoni 2, Marina Clerico 1 and Riccardo Buccolieri 3,* ID 1 Politecnico di Torino, DIATI—Dipartimento di Ingegneria dell’Ambiente, del Territorio e delle Infrastrutture, corso Duca degli Abruzzi 24, Torino 10129, Italy;
[email protected] (M.B.);
[email protected] (M.C.) 2 Laboratoire de Mécanique des Fluides et d’Acoustique, UMR CNRS 5509 University of Lyon, Ecole Centrale de Lyon, INSA Lyon, Université Claude Bernard Lyon I, 36, avenue Guy de Collongue, Ecully 69134, France;
[email protected] 3 Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, University of Salento, S.P. 6 Lecce-Monteroni, Lecce 73100, Italy * Correspondence:
[email protected]; Tel.: +39-0832-297-062 Received: 9 June 2017; Accepted: 20 July 2017; Published: 26 July 2017 Abstract: Background: Air pollution is a major global environmental risk factor. Since people spend most of their time indoors, the sole measure of outdoor concentrations is not sufficient to assess total exposure to air pollution. Therefore, the arising interest by the international community to indoor-outdoor relationships has led to the development of various techniques for the study of emission and exchange parameters among ambient and non-ambient pollutants. However, a standardised method is still lacking due to the complex release and dispersion of pollutants and the site conditions among studies. Methods: This review attempts to fill this gap to some extent by focusing on the analysis of the variety of site-specific approaches for the assessment of particulate matter in work and life environments.