Precision of the all-glass impinger and the andersen microbial impactor for air sampling in solid-waste handling facilities
| Autor: | R C van Nostrand, L L Lembke, R N Kniseley, M. D. Hale |
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| Jazyk: | angličtina |
| Rok vydání: | 1981 |
| Předmět: |
Aerosols
Microbiological Techniques Air sampling Municipal solid waste Ecology Bacteria Air microbiology Analytical chemistry Air Microbiology Fungi Applied Microbiology and Biotechnology Aerosol Refuse Disposal Linear relationship Evaluation Studies as Topic Environmental chemistry Colony count Air quality index Food Science Biotechnology Waste processing Research Article |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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