Use of lichen biomass to monitor dissolved metals in natural waters
- McNeese State Univ., Lake Charles, LA (USA)
The use of lichens for monitoring airborne metals is based on their immobility and a tendency to accumulate metals to a high degree by the trapping of atmospheric particles and by adsorptive ion exchange processes in which dissolved metals in rainwater are picked up by cellular membranes. The powerful metal-accumulating ability of lichens has been demonstrated in the laboratory. This strong metal accumulating ability of lichen biomass from aqueous solutions would seem to make lichen material an ideal biomonitor of dissolved metals in natural waters. To test this the present study was initiated to monitor dissolved zinc, copper, lead, nickel, cadmium, iron, manganese, chromium, and mercury in an industrially-impacted bayou in southwestern Louisiana. The results obtained with lichen biomonitors will be compared with other studies of the same metals in periphyton and sediments from this waterway.
- OSTI ID:
- 7098778
- Journal Information:
- Bulletin of Environmental Contamination and Toxicology; (USA), Vol. 44:2; ISSN 0007-4861
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
LICHENS
CHEMICAL ANALYSIS
METALS
UPTAKE
WATER POLLUTION
BIOLOGICAL INDICATORS
ABSORPTION SPECTROSCOPY
BIOMASS
CADMIUM COMPOUNDS
CHROMIUM COMPOUNDS
COPPER COMPOUNDS
IRON COMPOUNDS
LEAD COMPOUNDS
LOUISIANA
MANGANESE COMPOUNDS
MERCURY COMPOUNDS
NICKEL COMPOUNDS
SEDIMENTS
SOLUBILITY
ZINC COMPOUNDS
ALGAE
ELEMENTS
ENERGY SOURCES
EUMYCOTA
FEDERAL REGION VI
FUNGI
NORTH AMERICA
PLANTS
POLLUTION
RENEWABLE ENERGY SOURCES
SPECTROSCOPY
TRANSITION ELEMENT COMPOUNDS
USA
560300* - Chemicals Metabolism & Toxicology