2 Ergebnisse.

The present study attempts to deduce the levels of air-pollution from its effects on epiphytic lichens in the Miinsterland caused by the emission source of the Ruhrgebiet adjacent in the South to the investigated area. For the collection and determination of the values the author has used the lAP-method developed by De Sloover & Le Blanc (I968). A distribution map ...

The present study attempts to deduce the levels of air-pollution from its effects on epiphytic lichens in the Miinsterland caused by the emission source of the Ruhrgebiet adjacent in the South to the investigated area. For the collection and determination of the values the author has used the lAP-method developed by De Sloover & Le Blanc (I968). A distribution map ...