Abstract
The design and performance of a simple parallel plate, irrigated, precipitator for use in the sampling of soluble aerosols is described. Uniform surface coverage of 0.044 ± 0.003 mL/ cm2 by the gravity fed collection fluid is provided with a fiberglass mat (Gelman type A/E fitter), while a surface washout of ∼ 45% occurs in fluid residence time tf = V/q for a collector surface inclination of 40° relative to horizontal. Efficiency tests using laboratory generated DOP aerosols and field tests of sulfate-bearing particles indicate good correlation with the Deutsch equation. Values of V/Q, proportional to the instrument sampling time, representing the ratio of collection fluid volume to air flow rate for the present design compare favorably with other available instrumentation.