The Microorifice Uniform Deposit Impactor (MOUDI) is an in situ airborne or ground-based sampler developed by the MSP Corporation. It is an eight-stage impactor used for high-accuracy aerosol sampling for gravimetric or chemical analysis. MOUDI has a sample flow rate of 30 liters per minute and can sample particles in the size range of 0.056-18 µm. It is used for applications such as air pollution research, engine emission testing, and aerosol analysis.

Instrument Details
- Sampler
- Earth Science > Atmosphere > AerosolsEarth Science > Atmosphere > Aerosols > Aerosol Particle Properties
- Troposphere
- N/A
- Point
- N/A
- https://doi.org/10.1080/02786829108959504
Currently unavailable
Currently unavailable
MSP Corporation
Department of Energy, Electric Power Research Institute, U.S. Department of Interior's Mineral Institutes program
data center outside NASA
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