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Table 7 The effect of vehicular pollution on total chlorophyll (mg/g) contents of selected tree species in the Kumasi Metropolis

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

Sampling siteTree species
Terminalia catappaMangifera indicaFicus platyphyllaPolyalthia longifolia
Control1.21 ± 0.01d1.53 ± 0.02d1.52 ± 0.01d1.41 ± 0.03d
Arterial road I0.53 ± 0.01a0.67 ± 0.03a0.97 ± 0.01c0.93 ± 0.01c
Arterial road II0.84 ± 0.01b1.01 ± 0.03b0.65 ± 0.01a0.58 ± 0.03a
Arterial road III1.02 ± 0.01c1.13 ± 0.01c0.70 ± 0.03b0.74 ± 0.01b
  1. Mean ± SE in the same column with different letters in superscript is significantly different (P < 0.05)