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- W1895925687 abstract "The atmosphere contains all the major groups of microbes ranging from the algae to the viruses. Outdoors, with the changing seasons of the year, the air contains a varying assemblage of pollen grains, a prolific fungal spora in which all the major groups are well represented, occasional spores of ferns, mosses and algal cells such as those of the terrestrial genus Pleurococcus. The methods and apparatus used to trap airborne microbes and employ either impaction, impingement or sedimentation are described in the chapter. Other principles are utilized such as electrostatic precipitation. However, because before an electrostatic attraction or electron wind can be effective, a volume of air has to be drawn into the sampler. It is for most purposes simpler to utilize the essential suction pump to produce a jet of air and direct this and the suspended particles it entrains on to a prepared surface that retains the particles. The choice of method must be governed by such features as whether sampling is to be undertaken indoors or outdoors, the concentration in which the microbes occur in the air to be sampled, whether it is essential that the microbe be grown for identification and enumeration or whether, as is the case with pollen grains and the spores of certain obligate fungal pathogens of plants, they can be recognized by their morphological features under the microscope." @default.
- W1895925687 created "2016-06-24" @default.
- W1895925687 creator A5081434933 @default.
- W1895925687 date "1971-01-01" @default.
- W1895925687 modified "2023-09-23" @default.
- W1895925687 title "Chapter XIII Air Sampling for Fungi, Pollens and Bacteria" @default.
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- W1895925687 doi "https://doi.org/10.1016/s0580-9517(09)70018-2" @default.
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