One tree can filter how many pounds of pollutants from the air each year/?

Question

One tree can filter how many pounds of pollutants from the air each year/?

Answer 1

The main pollutant trees remove from the air is carbon dioxide (CO2) which the tree converts to carbon, which becomes a part of the tree, and oxygen which is released back into the air.  

Each year the tree grows, its weight increases and part of the tree is shed, as falling leaves and dead wood. The weight increase is partly moisture, drawn up through the tree roots, and partly carbon, absorbed from the pollutants in the air. Dependent upon the type of tree this could be as much as 50% carbon.

Approximately one third of the weight of carbon dioxide is carbon, and so the weight of pollutant removed could be as much as 50% of the increase in weight of the tree plus its yearly debris, times three.  

Most of the debris, and eventually the dead tree itself gets trapped in the soil and has no further effect on the environment.

For example, if a tree lives for 100 years and during its lifetime produces 10,000 lbs of wood and leaves, it will remove approximately :-

10,000 lbs / 100 years x 50% moisture x 3 = 150 lbs/year

Answer 2

1000

Answer 3

One tree can filter up to 60 pounds of pollutants from the air each year.

Answer 4

Be careful...trees also generate heat which adds to the overall temperature of the atmosphere..planting an unlimited amount of trees all over the world is not the magic bullet many people believe

Answer 5

and when the tree dies and rots away all those pollutants are released back into the atmosphere again.......