Some available in situ measurement techniques include:
* Aerosol mass spectrometer (AMS)
* Differential mobility analyzer (DMA)
* Electrical aerosol spectrometer (EAS)
* Aerodynamic particle sizer (APS)
* Aerodynamic aerosol classifier (AAC)
* Wide range particle spectrometer (WPS)
* Micro-Orifice Uniform Deposit Impactor(MOUDI)
* Condensation particle counter (CPC)
* Epiphaniometer
* Electrical low pressure impactor (ELPI)
* Aerosol particle mass-analyser (APM)
* Centrifugal Particle Mass Analyser (CPMA)