Table 2 A summary of the main techniques used to obtain the MAC of BC-containing aerosols in the studies reviewed herein

Filter-based absorption photometers

Attenuation

C_eBC or β_abs

Multiangle absorption photometer (MAAP¹¹⁸), aethalometer (AETH, Magee Scientific), continuous light absorption photometer (CLAP¹⁸⁹) or tricolor absorption photometer (TAP, Brechtel Inc.), particle soot absorption photometer (PSAP¹⁹⁰), microAeth MA200¹⁹¹

Filter-based absorption photometer with TD

Attenuation

β_{abs, nvPM}

Continuous soot monitoring system (COSMOS^{104,119,120,192})

Filter absorption from carbon analyzer

Attenuation

β_abs (C_eBC)

Sunset or DRI instruments^88,89,90

Photoacoustic spectroscopy (PAS)

Absorption (direct)

β_abs

Photoacoustic extinctiometer (PAX, droplet measurement technologies), photoacoustic soot spectrometer (PASS, droplet measurement Technologies), photoacoustic aerosol absorption spectrometer (PAAS¹⁹³), multi-wavelength soot spectrometer (MSS)

Photothermal interferometry (PTI)

Absorption (direct)

β_abs

Photothermal aaerosol absorption monitor (PTAAM⁶³)

Extinction-minus-scattering (EMS)

Absorption (indirect)

β_abs = β_ext–β_sca

Integrating a nephelometer, cavity attenuated phase shift extinction monitor (CAPS PMex, Aerodyne Inc.)

Laser-induced incandescence

rBC mass

C_rBC

Single-particle soot photometer (SP2, droplet measurement technologies), LII 300 (Artium Technologies Inc.)

Thermal-optical analysis (TOA, standard method)

EC mass

C_EC

Sunset or DRI instruments