The pH History of Lakes in Southwestern Sweden, as Calculated from the Subfossil Diatom Flora of the Sediments
Renberg I and Hellberg T. 1982. The pH History of Lakes in Southwestern Sweden, as Calculated from the Subfossil Diatom Flora of the Sediments. Ambio. 11(1):30-33
The pH history of three lakes in the province of Bohuslän in southwestern Sweden has been studied. Earlier pH values were estimated, using an improved method, from the subfossil diatom remains present in core samples of the sediments. Since the creation of the lakes about 12 500 years ago, the pH has decreased from around 7 to around 6 due to natural causes. During the past few decades, because of acid precipitation, pH has further decreased to 4.5 or below. The reverse pH changes in one of the lakes during the 1970's, following liming, could also be followed from the "diatom pH record".
- Type
- Journal Article
- Authors
- Renberg, I; Hellberg, T
- Units
- ARD
- Keywords
- Acidification, AIRBIB, diatom flora, Lake Acidification, pH