Abstract

The results of aerosol measurements obtained at Goldstone in the Mojave Desert during the California Air Resources Board Aerosol Characterization Experiment (ACHEX) in 1972 are presented. Simultaneously with the taking of filter and impactor samples for chemical analysis, the aerosol particle size distribution was measured with four on-line instruments over the particle size range from approx. 0.003 to 40 μm. Plots of ΔS/ Δ Log D p and ΔV/ Δ Log D p are presented. The lowest volumes ever recorded with the aerosol analyzing system (1.85 μm 3 cm −3) were obtained at Goldstone. More typical aerosols were also sampled. An incursion of well aged aerosol from the south coast basin was recorded ( total volume = 43.1 μn 3 cm −3). Average nuclei concentrations ranged from 47 cm −3 to 20000 cm −3.

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