The CIEMAT is a public research body assigned to the Spanish Ministry of Science and Innovation, focused on energy and the environment, and the technologies related to them. CIEMAT will contribute to RI-URBANS by providing long-term data series of particle number size distribution, aerosol chemical composition, and non-refractory compounds. Complementary data from gaseous pollutants (NOx, O3) and meteorology will be provided to support the analysis and interpretation.
