Which one of the following plants is popularly grown along the road for absorbing vehicular pollutants?

Q. Which one of the following plants is popularly grown along the road for absorbing vehicular pollutants?

1. Nerium
2. Neem
3. Bougainvillea
4. Calotropis

Answer: Bougainvillea

Bougainvillea is popularly grown along the road for absorbing vehicular pollutants.

Bio-remediation by using selected plant species is an effective method to control pollution which is universally accepted. Bougainvillea is a pollution tolerant plant and can help in the mitigation of air pollution besides its ornamental value in the landscaping. From the rich germplasm collection in NBRI Botanical Garden, tolerant plants have experimented for roadside plantation in view of mitigating the environmental pollution.

Bioremediation is a process used to treat contaminated media, including water, soil and subsurface material, by altering environmental conditions to stimulate growth of microorganisms and degrade the target pollutants.