A method of modifying the sensitivity function of an aerosol photometer

Matti Lehtimäki, Jorma Keskinen

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Abstract

The application of a virtual impactor to modify the overall sensitivity function of an aerosol photometer has been studied. The measurement of particles in the minor airflow of a virtual impactor results in a significant increase in the photometer's sensitivity to large particles. The increased response to large particles is considered as a change in the sensitivity function. The location of the overall sensitivity maximum can be shifted from the submicrometer-size range to the 2–3 µm region (the region where the particle deposition in human lungs is high).
Original languageEnglish
Pages (from-to)396-400
JournalAmerican Industrial Hygiene Association Journal
Volume49
Issue number8
DOIs
Publication statusPublished - 1988
MoE publication typeA1 Journal article-refereed

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Lehtimäki, Matti ; Keskinen, Jorma. / A method of modifying the sensitivity function of an aerosol photometer. In: American Industrial Hygiene Association Journal. 1988 ; Vol. 49, No. 8. pp. 396-400.
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A method of modifying the sensitivity function of an aerosol photometer. / Lehtimäki, Matti; Keskinen, Jorma.

In: American Industrial Hygiene Association Journal, Vol. 49, No. 8, 1988, p. 396-400.

Research output: Contribution to journalArticleScientificpeer-review

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T1 - A method of modifying the sensitivity function of an aerosol photometer

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AU - Keskinen, Jorma

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AB - The application of a virtual impactor to modify the overall sensitivity function of an aerosol photometer has been studied. The measurement of particles in the minor airflow of a virtual impactor results in a significant increase in the photometer's sensitivity to large particles. The increased response to large particles is considered as a change in the sensitivity function. The location of the overall sensitivity maximum can be shifted from the submicrometer-size range to the 2–3 µm region (the region where the particle deposition in human lungs is high).

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DO - 10.1080/15298668891379963

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JO - Journal of Occupational and Environmental Hygiene

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SN - 1545-9624

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