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Author Alcocer, A. E. ♦ Potter, L. B. ♦ Feldstein, M.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword ENVIRONMENTAL SCIENCES ♦ AIR POLLUTION ♦ SAMPLING ♦ DUSTS ♦ X-RAY DIFFRACTION ♦ AIR FILTERS ♦ AIR SAMPLERS ♦ CEMENTS ♦ INDUSTRIAL WASTES ♦ MICA ♦ OPTICAL MICROSCOPY ♦ POLLUTION SOURCES ♦ WIND ♦ BUILDING MATERIALS ♦ COHERENT SCATTERING ♦ DIFFRACTION ♦ EQUIPMENT ♦ FILTERS ♦ MATERIALS ♦ MICROSCOPY ♦ POLLUTION ♦ POLLUTION CONTROL EQUIPMENT ♦ SAMPLERS ♦ SCATTERING ♦ WASTES 500200* -- Environment, Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
Abstract Two directionally oriented high-volume samplers are used to pinpoint the collection of specific inorganic dusts from an industrial emission. One of the samplers is placed upwind of the source, and the other downwind. Both samplers are activated by winds blowing from the direction of the source to the downwind sampler. Both are de-activated when the wind shifts from the 30/sup 0/ sampling arc. Thus, the upwind sampler sees background dust, and the downwind sampler sees material originating from the source. Microsorban filters are used to collect the dust materials. The filter is then dissolved in benzene and the residue washed with benzene to remove the filter material and organic substances collected. The residue consists of dry, inorganic dust, which is then subjected to X-ray diffraction and optical microscopy, for analysis. This technique was successfully used to collect and analyze cement dust and mica dust from two separate industrial sources. The technique has promise for the analysis of a wide variety of inorganic materials which can be identified by X-ray diffraction, optical microscopy or other techniques. 6 references, 3 tables.
Educational Use Research
Learning Resource Type Article
Publisher Date 1969-01-01
Publisher Place United States
Journal J. Air Pollut. Control Assoc.
Volume Number 19
Issue Number 4


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