Precision of the all-glass impinger and the andersen microbial impactor for air sampling in solid-waste handling facilities.
AUTOR(ES)
Lembke, L L
RESUMO
A method was devised to determine the precision of the all-glass impinger and the Andersen six-stage microbial impactor over a wide range of aerosol concentrations like those found in facilities which process solid waste. Simultaneous samples were collected inside a municipal solid-waste recovery system, and the data were treated statistically to estimate the precision of each air-sampling device. All-glass impingers yielded colony counts which indicated a linear relationship between samplers over an observed aerosol concentration of 1.1 X 10(3) to 2.8 X 10(7) colony-forming units per m3 of air. Impactors also yielded colony counts which indicated a linear relationship over an observed aerosol concentration range of 3.9 X 10(3) to 1.9 X 10(5) colony-forming units per m3 of air. The coefficients of variation for the all-glass impinger and the six-stage impactor in an environment with a high and variable dust level were determined to be 0.38 and 0.23, respectively.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=243994Documentos Relacionados
- Bacterial Aerosol Samplers: I. Development and Evaluation of the All-Glass Impinger
- Identification of thermophilic bacteria in solid-waste composting.
- A simple, all-glass device for isolating clones of mammalian cells and of virus.
- AN ALL-GLASS APPARATUS FOR THE CONTINUOUS CULTIVATION OF YEAST UNDER ANAEROBIC CONDITIONS1
- Effect of temperature on bacterial species diversity in thermophilic solid-waste composting.
