Physiological Effect of Accidental Fly Ash Deposition on Plants and Chemical Study of the Dusted Plant Leaves by XRF and EPMA

J. Osán, S. Török, K. Török, L. Németh, J. Lábár

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Studies on the influence of fly ash on the photosynthetic activity of Solidago canadensis L. were carried out in order to determine the importance of this material as an environmental impact agent. Leaf samples were dusted with fly ash and sprayed with water of different pH values simulating acid rain. Fly ash was applied in quantities to model an accidental occasion of an extremely high emission level of fly ash as a result of malfunctioning of the electrostatic filters of fossil fuel-burning power plants. Leaf samples were analysed to trace the distribution of fly ash compounds on the leaf epidermis by means of x-ray fluorescence (XRF) analysis and single-particle electron probe microanalysis (EPMA). Significant reduction of the photosynthetic activity compared with the control group was observed only when the dusted plants were sprayed with acid rain. The trace element study showed that the uptake of toxic elements by plants was not significant. A quartz microcrystal layer in the case of acid treatment was detected by EPMA, and covered the entire leaf surface. It is considered that this layer, in addition to the fly ash particles themselves, absorbed light significantly, which played an important role in the decrease in photosynthetic activity.

Original languageEnglish
Pages (from-to)167-172
Number of pages6
JournalX-Ray Spectrometry
Volume25
Issue number4
Publication statusPublished - Jul 1996

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Coal Ash
Electron probe microanalysis
Fluorescence
X rays
Acid Rain
Microcrystals
Quartz
Poisons
Trace Elements
Fossil fuels
Environmental impact
Electrostatics
Power plants
Acids
Water

ASJC Scopus subject areas

  • Spectroscopy

Cite this

Physiological Effect of Accidental Fly Ash Deposition on Plants and Chemical Study of the Dusted Plant Leaves by XRF and EPMA. / Osán, J.; Török, S.; Török, K.; Németh, L.; Lábár, J.

In: X-Ray Spectrometry, Vol. 25, No. 4, 07.1996, p. 167-172.

Research output: Contribution to journalArticle

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