WIT Press

Variability Of Sea-salt Deposition Assessed By Lichen Monitoring In The South-west Portuguese Coast

Price

Free (open access)

Paper DOI

10.2495/AIR990581

Volume

37

Pages

9

Published

1999

Size

814 kb

Author(s)

R. Figueira, A.I Sousa, A.M.G. Pacheco & F. Catarino

Abstract

The spatial and temporal variability of the atmospheric deposition of saline elements was assessed by biomonitoring with lichens. Seven sampling stations were selected in the south-west coast of Portugal, disposed with increasing distances from the coast, and lichens were collected bimonthly during 48 months, starting in February 1994. Results show a seasonal pattern in the accumulation of saline elements, with higher values obtained after periods without rain events. Precipitation seems to wash-out surface elements from the lichen thalli, and a negative correlatio

Keywords