The photos reproduced in this section are from our collection which may be of interest to persons working in the field of Aerosol Science, Air Pollution or Industrial Hygiene.

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Circa 1949, a posed image of Mel First (1) pointing out the salient features of a cyclone used in his Thesis project.
The venue is the old HSPH at 55 Shattuck Street, Boston.
Also shown in photo are:
2 C.P Yaglou, taught Psychometrics and did significant research on healthy air for premature infants.
3 Phillip Drinker. Founder of the Department of Industrial Hygiene and Inventor of the Iron Lung.
4 Leslie Silverman, second head of Department.
5. Charles Williams founder of the Liberty Mutual Industrial Hygiene laboratory.
All of the men shown were Harvard Full Professors in their lifetimes.

Title Page
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Diagram of Collison Inhaler |
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Earliest Image of Collison Nebulizer from
W. E. Collison's book "Inhalation Therapy Technique"
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Kenneth R. May, Inventor of the Cascade Impactor, shown in his Laboratory at the
Microbiological Research Establishment at Porton, Circa 1977.
(Image kindly provided by his son, Jonathan)

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Copy of the title page from
THE SMOKE PROBLEM OF GREAT CITIES

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The photo shown above is of the noted Atmospheric Scientist, Dr. Austin Hogan. They were taken in 1978 when he was conducting aerosol research measurements at the South Pole. Dr. Hogan is shown holding a Casella Mk2a Cascade Impactor. This instrument was specially modified by BGI at Dr. Hogan's request. All of the internal coatings were removed to present a bare aluminum surface. Subsequent modifications were made by Dr. Hogan's organization the A.S.R.C. of the State University of NY at Albany. The instrument continued in use well into the 80's.

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An amazing portrait of Pollution in a great city, at the dawn of the 20th Century.
Levels were in the order of 400 µg/m3 (probably sub PM10). Sunlight was strongly diminished.
(Ref. J.B. Cohen and A.G. Ruston, Smoke a Study of Town Air E. Arnold, London, 1912)

1982
The BGI Auditor
A unitized high water mark for mechanical environmental calibrators
1972 Advertisment in The Journal of the Air Pollution Control Association
Copyright © 2006 by BGI / Modified:
Monday, September 19, 2011
