First Studies In Assessing Cryptogamic Epiphytes As Biomonitors Of Sea-salt Deposition Density
Price
Free (open access)
Transaction
Volume
10
Pages
8
Published
1995
Size
836 kb
Paper DOI
10.2495/AIR950482
Copyright
WIT Press
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
Keywords
