Since the early 1980s, geological and structural mapping, gravity, and helium soil±gas studies have been performed in the eastern sector of the Vulsini Volcanic District (Roman Magmatic Province) in an attempt to locate potential geothermal reservoirs. This area is characterised by an anomalous geot
Lichen biomonitoring of mercury emission and deposition in mining, geothermal and volcanic areas of Italy
✍ Scribed by R. Bargagli; C. Barghigiani
- Publisher
- Springer
- Year
- 1991
- Tongue
- English
- Weight
- 623 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0167-6369
No coin nor oath required. For personal study only.
✦ Synopsis
Natural emissions of Hg are attracting increased interest both for their environmental implications and for possible applications in the exploration of mineral, petroleum and geothermal fields. However, daily and seasonal fluctuations in concentrations of Hg in the atmosphere, caused by meteorological and environmental variables, has made it very difficult to assess Hg anomalies by conventional analytical procedures. Some species of widespread foliose lichens from an abandoned cinnabar mining and smelting area (Mt. Amiata), geothermal fields (Larderello, Bagnore and Piancastagnaio, Central Italy), and active volcanic areas (Mt.Etna and Vulcano, Southern Italy) seem to be very suitable biomonitors of gaseous Hg; especially as lichen thalli have an Hg content which reflects average values measured in air samples. We discuss the advantages of quantitative biological monitoring by lichens with respect to conventional air sampling in large-scale monitoring.
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