Dr. David Galán-Madruga is a scientific researcher in the Department of Atmospheric Pollution (National Reference Laboratory for Air Quality in Spain) of the National Center for Environmental Health (Health Institute Carlos III), is the head of the functional unit in that Department and holds a PhD in Inorganic and Bioinorganic Chemistry by Complutense University of Madrid (Mention of European Doctorate). Similarly, he is an expert in instrumental techniques by the Faculty of Chemical Sciences (Complutense University of Madrid). He holds a Master's in Computer Science and Management as well as 31 specific courses. Nowadays, he is a member of the Technical-Scientific Committee for RELAB (Network of Biological Alert Laboratories). His research interests include air quality, Characterization of atmospheric pollutants in outdoor and indoor air, and source apportionment, among others.