Question

public awareness and concern about the neem tree​

Answer 1

Answer:

Neem is ecologically very special. It can tolerate very high levels of pollution and has the capacity to recover even if most of its foliage is dropped. Plants with a large leaf area such as neem, accumulate relatively higher quantities of lead. Trees vary widely in their capacity to absorb pollutants like particulate dust, CO2, oxides of sulphur and nitrogen. A study of locations in New Delhi, done by National Environmental Engineering Research Institute, India in 1996 indicated that Neem tree is one of the most suitable species for checking urban pollution in industrial locations and it has potential in green belt development in hot spots with known history of high air pollution.

It was no coincidence that Emperor Ashoka, in the 3rd century before Christ, commanded that Neem be planted along the road highway and roads along with other perennials, Tamarindus indica and Madhuca Latifolia.

Neem has relatively high efficiency of CO2 fixation. It can fix more than 14 micro mole of CO2 per m2 per Sec. With a thick foliage canopy and a very high leaf surface area, it provides a good option for maximum CO2 fixation and providing a shield against other pollution components particularly SO2.