Replication data for Aerosol chemical composition and aerosol source apportionment (PMF) for the JULIAC 2019 campaign

The data is from experiments in the atmospheric simulation chamber SAPHIR. During the JULIAC 2019 campaign, ambient air was continuoulsy sampled from a 50 m high inlet above ground and passed through the SAPHIR chamber with a high flow (residence time of ambient air about 1 hour). Measurements were conducted for 4 weeks in each season in 2019. Gas-phase species, radicals and aerosol properties were measured with a large set of instruments. The data were analysed with respect to aerosol chemical composition and subsequent aerosol source apportionment based on the mass spectra characteristics using Positive Matrix Factorization (PMF).