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    Author(s): Lars Westman
    Date: 1976
    Source: In: Dochinger, L. S.; Seliga, T. A., eds. Proceedings of the first international symposium on acid precipitation and the forest ecosystem; Gen. Tech. Rep. NE-23. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. p.969
    Publication Series: General Technical Report (GTR)
    Station: Northeastern Research Station
    PDF: View PDF  (38.51 KB)

    Description

    A preliminary study has been made around a sulfite plant in the north of Sweden. The emission of sulfur dioxide increased considerably in 1950 as a consequence of the introduction of lye-burning. Using the pH in pine bark and two common lichen epiphytes as indicators, the resistant Parmelia physodes and the very sensitive Alectoria implexa, the area studied was divided into regions with different degrees of air pollution, mainly sulfur dioxide.

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    Citation

    Westman, Lars. 1976. Air pollution indications and growth of spruce and pine near a sulfite plant. In: Dochinger, L. S.; Seliga, T. A., eds. Proceedings of the first international symposium on acid precipitation and the forest ecosystem; Gen. Tech. Rep. NE-23. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. p.969

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