CARBONACEOUS AEROSOL SPECIATION SYSTEM (CASS)

The Carbonaceous Aerosol Speciation System CASS simultaneously controls the operation of 2 instruments, i.e., the Total Carbon Analyzer TCA08 and the Aethalometer AE33. The first one collects a sample of atmospheric aerosols on a quartz fiber filter positioned inside a small stainless-steel chamber at a controlled sampling flow rate of 16.7 LPM. The default sampling time of TCA08 is 60 min but can be set from 20 min – 24 h, depending on the ambient aerosol concentrations.