Lichen Species as Bio-accumulator of some Halogens on Mount Cameroon Valcano, West Africa

1
Ayuk Elizabeth Orock
Ayuk Elizabeth Orock
2
A. B. Fonge
A. B. Fonge
3
E. M. Shemang
E. M. Shemang
4
M. Zhai
M. Zhai
5
C. E. Suh
C. E. Suh

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GJHSS Volume 22 Issue B4

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Lichens diversities are informative indicators for assessing impacts of air pollution, climate change, environmental health, volcanic activities, habitat heterogeneity and continuity. Lacking roots, vascular tissues, stomata and waxy cuticle, they absorb and accumulate airborne nutrients/pollutants from the atmosphere over their entire surface. Halogens, especially fluorides are released into the atmosphere in large amounts by volcanic eruptions and their pollutants levels in lichens can be determined quantitatively by chemical analysis of species. The objective of this study was to examine the lichens potentials on Mount Cameroon (MC) as bio-monitors and bio-accumulators for some halogens (F, Cl, Br) levels. To achieve this objective, 34 lichen species were analysed using selective ion electrode. The species were collected from eight sampling sites on two flanks of MC at elevations ranging from 3-2178 m above sea level.

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No external funding was declared for this work.

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The authors declare no conflict of interest.

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No ethics committee approval was required for this article type.

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Ayuk Elizabeth Orock. 2026. \u201cLichen Species as Bio-accumulator of some Halogens on Mount Cameroon Valcano, West Africa\u201d. Global Journal of Human-Social Science - B: Geography, Environmental Science & Disaster Management GJHSS-B Volume 22 (GJHSS Volume 22 Issue B4): .

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Alt text: Study on lichen species diversity on Mount Cameroon, focusing on their ecological significance and conservation.
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GJHSS Volume 22 Issue B4
Pg. 19- 35
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Crossref Journal DOI 10.17406/GJHSS

Print ISSN 0975-587X

e-ISSN 2249-460X

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GJHSS-B Classification: DDC Code: 577.03 LCC Code: QH540.4
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January 20, 2023

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Lichens diversities are informative indicators for assessing impacts of air pollution, climate change, environmental health, volcanic activities, habitat heterogeneity and continuity. Lacking roots, vascular tissues, stomata and waxy cuticle, they absorb and accumulate airborne nutrients/pollutants from the atmosphere over their entire surface. Halogens, especially fluorides are released into the atmosphere in large amounts by volcanic eruptions and their pollutants levels in lichens can be determined quantitatively by chemical analysis of species. The objective of this study was to examine the lichens potentials on Mount Cameroon (MC) as bio-monitors and bio-accumulators for some halogens (F, Cl, Br) levels. To achieve this objective, 34 lichen species were analysed using selective ion electrode. The species were collected from eight sampling sites on two flanks of MC at elevations ranging from 3-2178 m above sea level.

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Lichen Species as Bio-accumulator of some Halogens on Mount Cameroon Valcano, West Africa

Ayuk Elizabeth Orock
Ayuk Elizabeth Orock
A. B. Fonge
A. B. Fonge
E. M. Shemang
E. M. Shemang
M. Zhai
M. Zhai
C. E. Suh
C. E. Suh

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