Analysis of air pollution using lichens

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Analysis of air pollution using lichens
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Lichens

• Lichens are composite organisms consisting of a
  symbiotic association of a fungus with a
  photosynthetic partner , usually green algae

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• Many lichen are sensitive to changes around them.
  For this reason, they are bioindicators of clean
  air.

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• Traditionally three broad categories of lichen
  have been recognized
• crustose (crusty)

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• foliose (leafy)

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• fruticose (shrubby)

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Analysis of air quality in Slovenj Gradec

• According to level of pollution, there are 5
  lichenbelts A very clean air
• B clean air
• C less clean air
• D occasionally polluted air
• E very pollutant air

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• Center of SG 25 years ago - D belt (occasionally
  polluted air)
• today C belt (less clean air)
• Area around SG 25 years ago B belt (clean air)
• today C belt (less clean air)

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LYCHEN MAP OF SLOVENIA
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Major pollutants

• 25 years ago Coal, thermal power plant Šoštanj,
• mine Mežica

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• Today transportation, factories, industry