The Action is organized in four Working Groups
Working Group 1
Quality assurance of on-line chemical composition of non-refractory fine aerosol measurements
Objective 1.1. To provide clear, evidence-based guidelines for real-time chemical characterization of fine atmospheric aerosols.
Objective 1.2. To recommend desirable features of instrumentation for the determination of real-time chemical characterization of fine atmospheric aerosols.
Objective 1.3. To optimize calibration protocols and promote best-practices for quality check procedures.
Objective 1.4. To coordinate and reinforce the exchange of scientific research necessary for understanding the factors influencing fine atmospheric aerosols.
Objective 1.5. To provide rigorous training to efficiently measure and interpret the real-time chemical composition of fine atmospheric aerosols.
Working Group 2
Source apportionment of organic aerosol (OA)
Objective 2.1. To characterize the organic fraction of fine atmospheric aerosols and reach a standard method for source apportionment techniques of the organic fraction based on organic mass spectra datasets produced by ACSM instrument. Different types of OA will be identified and quantified: HOA, COA, BBOA, OOA, and others possibly identified within the Action.
Objective 2.2. To provide training in the application of source apportionment tools for the determination of the fine organic aerosol origin.
Working Group 3
Refractory fine aerosol fraction
Objective 3.1. To provide clear, evidence-based guidelines for real-time measurement of black carbon.
Objective 3.2. To recommend desirable features of instrumentation for the determination of real-time black and brown carbon.
Objective 3.3. To provide rigorous training to efficiently measure and interpret the real-time aerosol absorption measurements.
Working Group 4
European overview of fine atmospheric aerosols
Objective 4.1. To promote the joint interpretation of chemical composition and source apportionment of the carbonaceous fraction of fine aerosols at different European sites