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The use of some urban park woody species in an estimation of air pollution level. Total leaf peroxidase and catalase activities

, : The use of some urban park woody species in an estimation of air pollution level. Total leaf peroxidase and catalase activities. Zahradnictvi 20(4): 223-239

Activities of the 2 enzymes were measured in 1- and 2-year-old needles of Pinus strobus and Taxus baccata at 12 localities in Prague for 3 years. Activities were frequently higher in the centre of the city than on the outskirts. The enzymes were significantly more active in 2-year-old than in 1-year-old needles. Peroxidase activity was higher in the winter than summer and higher in P. strobus than in T. baccata.

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