Skip to Main Content
Characterizing individual particles on tree leaves using computer automated scanning electron microscopyAuthor(s): D. L. Johnson; D. J. Nowak; V. A. Jouraeva
Source: Advances in Environmental Research. 2(4): 456-466.
Publication Series: Scientific Journal (JRNL)
Station: Northeastern Research Station
PDF: View PDF (1.05 MB)
DescriptionLeaves from twenty-three deciduous tree species and five conifer species were collected within a limited geographic range (1 km radius) and evaluated for possible application of scanning electron microscopy and X-ray microanalysis techniques of individual particle analysis (IPA). The goal was to identify tree species with leaves suitable for the automated characterization of aerosol particles deposited on their adaxial surfaces. Evaluations considered morphology of the leaf surface, ability of the preparations to withstand the high vacuum environment of the IPA equipment and potential for X-ray background interference. Eleven candidate species were tested under auto-run conditions (unattended analyses); the geometric mean particle size, mass median diameter and aerosol deposit mass loading are reported. Particle size, particle population per unit area and mass loading were log normally distributed. Variability in mass loading for the co-located species was about the same as within-leaf and between-leaf mass loading determined for linden leaves, and was inversely related to the area of leaf analyzed. Results for computer automated scanning electron microscopy of individual particles demonstrate the feasibility of monitoring particle assemblages directly on leaf surfaces.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, email@example.com if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationJohnson, D. L.; Nowak, D. J.; Jouraeva, V. A. 1999. Characterizing individual particles on tree leaves using computer automated scanning electron microscopy. Advances in Environmental Research. 2(4): 456-466.
- Pathways of infection for Phytophthora ramorum in rhododendron
- Particulate emissions from a mid-latitude prescribed chaparral fire
- Image analysis of epicuticular damage to foliage caused by dry deposition of the air pollutant nitric acid
XML: View XML