Spectroscopic analysis of arsenic uptake in Pteris Ferns

Remote Sensing
By: , and 

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Abstract

Two arsenic-accumulating Pteris ferns (Pteris cretica mayii and Pteris multifida), along with a non-accumulating control fern (Nephrolepis exaltata) were grown in greenhouse conditions in clean sand spiked with 0, 20, 50, 100 and 200 ppm sodium arsenate. Spectral data were collected for each of five replicates prior to harvest at 4-week intervals. Fern samples were analyzed for total metals content and Partial Least Squares and Stepwise Linear Regression techniques were used to develop models from the spectral data. Results showed that Pteris cretica mayii and Pteris multifida are confirmed hyperaccumulators of inorganic arsenic and that reasonably accurate predictive models of arsenic concentration can be developed from the first derivative of spectral reflectance of the hyperaccumulating Pteris ferns. Both the arsenic uptake and spectral results indicate that there is some species-specific variability but the results compare favorably with previously published data and additional research is recommended.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Spectroscopic analysis of arsenic uptake in Pteris Ferns
Series title Remote Sensing
DOI 10.3390/rs1040644
Volume 1
Issue 4
Year Published 2009
Language English
Publisher MDPI
Contributing office(s) Eastern Geographic Science Center
Description 32 p.
First page 644
Last page 675