A METHOD FOR FACILITATING THE USE OF ALGAE GROWING ON TREE TRUNKS AS BIOINDICATORS OF AIR-QUALITY

Authors
HANNINEN O RUUSKANEN J OKSANEN J
Citation
O. Hanninen et al., A METHOD FOR FACILITATING THE USE OF ALGAE GROWING ON TREE TRUNKS AS BIOINDICATORS OF AIR-QUALITY, Environmental monitoring and assessment, 28(3), 1993, pp. 215-220
Citations number
NO
Categorie Soggetti
Environmental Sciences
Journal title
Environmental monitoring and assessment → ACNP
ISSN journal
01676369
Volume
28
Issue
3
Year of publication
1993
Pages
215 - 220
Database
ISI
SICI code
0167-6369(1993)28:3<215:AMFFTU>2.0.ZU;2-T
Abstract
The abundance of epiphytic green algae has been observed to correlate strongly with air quality in several studies. In contrast to lichens, the abundance of green algae is difficult to measure accurately by vis ual observation. A new method based on photography and digital image p rocessing was developed to estimate the chlorophyll content of algae g rowing on the bark of pine. Calibration data for the method was collec ted from polluted areas by spectrophotometric analysis of chlorophyll density.