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Table 4 Effect of vehicular air pollution on relative water content (%) of four street tree species in the Kumasi Metropolis

From: Roadside air pollution in a tropical city: physiological and biochemical response from trees

Sampling site Tree species
Terminalia catappa Mangifera indica Ficus platyphylla Polyalthia longifolia
Control 68.17 ± 7.76a 64.42 ± 4.94a 77.84 ± 2.77a 79.94 ± 7.16a
Arterial road I 86.11 ± 6.24a 80.08 ± 4.90a 85.42 ± 8.54a 85.97 ± 1.89a
Arterial road II 83.80 ± 4.61a 68.39 ± 7.27a 82.75 ± 3.53a 84.49 ± 3.16a
Arterial road III 92.81 ± 1.33a 83.63 ± 3.04a 92.19 ± 1.88a 93.86 ± 3.01a
  1. Mean ± SE in the same column with different letters in superscript is significantly different (P < 0.05)