Public Health Benefits of Trees
-Trees leaves help filter air pollution. Trees clean the air by absorbing carbon dioxide, sulfur dioxide, nitrous oxides, and other pollutants, and also shade cars and parking lots reducing ozone emissions from vehicles. Mature trees absorb 120-240 pounds of particulate pollutions each year.
-Trees are nature’s water filters, capable of cleaning up the most toxic wastes, including explosives, solvents and organic wastes, largely through a dense community of microbes around the tree’s roots that clean water in exchange for nutrients, a process known as phytoremediation.
-Trees help reduce urban runoff and the amount of sediment, pollutants, and organic matter that reach streams by diverting captured rainwater into the soil, where bacteria and other microorganisms filter out impurities
-Trees are also the planet’s heat shield. They keep the concrete and asphalt of cities and suburbs 10 or more degrees cooler and protect our skin from the sun’s harsh UV rays.
-Trees filter airborne pollutants and reduce the conditions that cause asthma and other respiratory problems.
Arbor Day 2016