Diesel Exhaust/Mine Dust Virtual Impactor Personal Aerosol Sampler: Design, Calibration and Field Evaluation
Open Access
- 1 January 1995
- journal article
- research article
- Published by Taylor & Francis in Aerosol Science and Technology
- Vol. 22 (2) , 140-150
- https://doi.org/10.1080/02786829408959735
Abstract
A virtual impactor personal aerosol sampler (VIPAS) has been developed for use in diesel-equipped mines to collect size-separated samples of diesel exhaust and mine dust particles in the respirable size range. This sampler consists of three stages: a 10-mm cyclone, a 0.8-μm cutpoint virtual impactor and two filter cassettes. The large nonrespirable particles are removed in a 10-mm cyclone. The respirable particles from the cyclone pass through a 0.8-μm cutpoint virtual impactor with the particles larger than and smaller than 0.8 μm (mine dust and diesel exhaust particles, respectively) collected on two 37-mm filter cassettes. The sampling flow rate is 2 L/min so as to be compatible with the standard respirable dust sampler and personal sampling pumps.Keywords
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