Analysis of air pollution using lichens. Lichens Lichens are composite organisms consisting of a symbiotic association of a fungus with a photosynthetic.

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Presentation transcript:

Analysis of air pollution using lichens

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

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

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

foliose (leafy)

fruticose (shrubby)

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

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)

LYCHEN MAP OF SLOVENIA

Major pollutants 25 years ago: Coal, thermal power plant Šoštanj, mine Mežica

Today: transportation, factories, industry…