An appraisal of tree sulphur content as a long term air pollution gauge |
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| Authors: | F B Pyatt |
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| Affiliation: | 1. School of Environmental Sciences , Plymouth Polytechnic , Plymouth, Devon, U.K.;2. Dept. of Life Sciences , Trent Polytechnic , Nottingham, U.K. |
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| Abstract: | Plant sulphur content of tree annual ring groups is used as an air pollution gauge in the vicinity of the Port Talbot (South Wales) steel works. The results indicate, with regards sulphur dioxide pollution, a recent improvement in air quality. Dendrochronological measurements also indicate this general trend. |
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| Keywords: | Anaerobic treatment packed bed reactor biofilm thickness biofilm loss rate shear stress flow velocity substrate flux porosity |
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