Low cost sensor systems for air quality assessment. Possibilities and challenges.

Bartonova, Alena; Castell, Núria Balaguer; Colette, Augustin; Schneider, Philipp; Viana, Mar; Voogt, Marita; Weijers, Ernie; Wesseling, Joost; Blokhuis, Christa; Malherbe, Laure; Spinelle, Laurent; Gonzalez-Ortiz, Alberto