B. O. Edegbai*

An Assessment of the Effect of Automobile Emmission on Selected Roadside Vegetation

Comparative phytoassessment of some selected vegetation exposed to automobile emission along Sapele road, Benin City, Nigeria at different distances from the road was carried out. Three plots (100 cm2 in area) were mapped out at intervals of 10 m away from the road to serve as treatment plots. The plots were designated as A (0 m – 10 m), B (10 m – 20 m) and C (20 m – 30 m) and a fourth plot was the control (100 m – 110 m) plot. Three plants, Sida acuta, Sida garckeana and Mariscus alternifolius; were selected for physiological studies as they were common to all the plots.

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