Non-target analysis of dust and serum was performed on a Thermo Scientific Accela LC system coupled to a Q Exactive™ HF (Thermo Scientific) mass spectrometer using electrospray ionization (ESI) in both positive (+) and negative (-) ionization modes. Dust samples were analyzed using an Acquity BEH C18 reversed phase (RP) column (150 × 2.1 mm; 1.7 μm), and a SeQuant® ZIC-pHILIC 5 µm polymer (HILIC) column (150 × 2.1 mm), each with the respective guard column. The HILIC method was also employed to analyze the polar extracts of the serum samples. The HRMS was operated in full scan profile mode with a scan range of 60-900 m/z. Complete details of the RP and HILIC LC-HRMS methods are given in Talavera Andújar et al. .