WIT Press

First Studies In Assessing Cryptogamic Epiphytes As Biomonitors Of Sea-salt Deposition Density

Price

Free (open access)

Paper DOI

10.2495/AIR950482

Volume

10

Pages

8

Published

1995

Size

836 kb

Author(s)

R. Figueria, A.M.G. Pacheco, A.J. Sousa, C. Branquinho & F. Catarino

Abstract

Sea-salt input over the land masses is an incontrovertible yet often neglected air pollution problem; as so, a program was designed to evaluate epiphytic lichens of the Ramalina and Usnea genera as saltfall biomonitors. An exposure-effect model based on the factorisation of physical and biological data into principal components and obtained by regressing lichen concentrations on environmental variables has been developed: so far, it explains over 60% of the pooled vari- ance in 11 months of calibration data and yields estimates that are within a few percent of the corresponding measurements. Seasonal trends in the sp

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