Bulletin of the National Research Centre

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
Sampling site	Terminalia catappa	Mangifera indica	Ficus platyphylla	Polyalthia longifolia
Control	68.17 ± 7.76^a	64.42 ± 4.94^a	77.84 ± 2.77^a	79.94 ± 7.16^a
Arterial road I	86.11 ± 6.24^a	80.08 ± 4.90^a	85.42 ± 8.54^a	85.97 ± 1.89^a
Arterial road II	83.80 ± 4.61^a	68.39 ± 7.27^a	82.75 ± 3.53^a	84.49 ± 3.16^a
Arterial road III	92.81 ± 1.33^a	83.63 ± 3.04^a	92.19 ± 1.88^a	93.86 ± 3.01^a

Mean ± SE in the same column with different letters in superscript is significantly different (P < 0.05)

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