### Daily ACSM Measurements for Mace Head for year 2020 - Instrument Type: Quadrupole Aersosol Chemical Speciaction Monitor (Q‐ACSM) - PM range: PM1 - Instrument Serial no.: 140‐214 #### Parameters Measured - mass concentration of chloride *( Chl )* - ammonium *( NH4 )* - nitrate *( NO3 )* - …