The UCB-PATS is a small, portable, battery-operated (9 volt), datalogging particle monitor for use in indoor environments. It uses a photoelectric (light-scattering) detector and is capable of measuring PM2.5 concentrations down to 25 ?g/m3. The UCB-PATS is launched and downloaded from a computer using software which was also developed by the Kirk Smith Research Group at the University of California-Berkeley.
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References on the development and performance of the UCB-PATS
Litton CD, Smith KR, Edwards R, Allen T. Combined optical and ionization measurement techniques for inexpensive characterization of micrometer and submicrometer aerosols, Aerosol Science and Technology, 38:1054-1062, 2004.
Edwards R, Smith KR, Kirby B, Allen T, Litton CD, Hering S. An Inexpensive Dual-Chamber Particle Monitor: Laboratory Characterization, Journal of the Air and Waste Management Association, 56:789-799, 2006.
Chowdhury Z, Edwards R, Johnson M, Shields KN, Allen T, Canuz E, Smith KR. An inexpensive light-scattering particle monitor: chamber and field validations with woodsmoke, Journal of Environmental Monitoring, 9(10):1099-1106, 2007.
These publications are available on the internet at the Household Environmental Monitoring website.