Use of the lichen Rhizoplaca melanophthalma as a biomonitor in relation to phosphate refineries near Pocatello, Idaho
| Autor: | Karen L. Dillman |
|---|---|
| Rok vydání: | 1996 |
| Předmět: |
Pollution
Health Toxicology and Mutagenesis media_common.quotation_subject Air pollution Mineralogy General Medicine Toxicology Phosphate medicine.disease_cause chemistry.chemical_compound Deposition (aerosol physics) chemistry Environmental chemistry Biomonitoring medicine Inductively coupled plasma Transect Lichen media_common |
| Zdroj: | Environmental Pollution. 92:91-96 |
| ISSN: | 0269-7491 |
| DOI: | 10.1016/0269-7491(95)00084-4 |
| Popis: | Phosphate refineries are point sources for atmospheric Cr, Cd, Zn and P. Concentrations of these and other elements were determined in the lichen Rhizoplaca melanophthalma (Ram.) Leuck. and Poelt in relation to distance and direction from phosphate refineries northwest of Pocatello, Idaho. Elemental concentrations in lichens collected were measured using a multi-element Inductively Coupled Plasma Atomic Emission Spectrometer (ICP-AES). Linear regression analysis revealed that concentrations of Cd, Cr, Zn, and P were negatively correlated with distance from the refineries. The concentrations of the elements Cd, Zn, Ca, Mn, B, and Pb were significantly different among four transects in different directions from the pollution source. Analysis of covariance indicated significant differences in concentrations of Cd, Cr, Zn, P, Cu, Ca, Mg, and K in lichens as a function of distance and direction from the pollution source. These results indicate that this lichen species may be used to determine deposition patterns of air pollutants in semi-arid environments. |
| Databáze: | OpenAIRE |
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