Size Distribution, Mercury/Lead Concentrations, and Stochastic Analysis of Suspended Particulates in Ambient Air
Abstract
Particulate concentration, particle size distribution, and mercury and lead concentrations in atmospheric particulates on Wright-Patterson Air Force Base (WPAFB), Ohio, were determined. Particulates were fractionated as follows: greater than 7.0, 3.3 to 7.0, 2.0 to 3.3, 1.1 to 2.0, and less than 1. 1 microns in equivalent aerodynamic diameter. The distribution of the particulate concentrations was analyzed using the Reverse Arrangements test to establish randomness, the Kolmogorov-Smirnov test to compare ten proposed probability density functions, and the Likelihood Ratio test to isolate the function best describing the data. The average lead concentration during a 24- hour sampling period was 1.25 micrograms/cu m. Mercury concentrations in particulates averaged 6.9 nanograms/cu m, however, due to inconsistencies in the analytical method no correlation could be established between mercury concentration and particle size.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1972
- Accession Number
- AD0748356
Entities
People
- Dennis L. Brown
Organizations
- Air Force Institute of Technology