study was conducted by the National Forest Service (NFS) taking into
account of the fact that hundreds of deaths in the United States are
attributable to air pollution. In the U.S., 130,000 deaths related to
particulate matter and 4,700 deaths related to ozone occurred in 2005
as a result of air pollution.
health consequences from air pollution considered in the study were
pulmonary, cardiac, vascular and neurological damages.
study states that though the fact of 850 lives spared each year does
not mean much compared to the population of the planet, trees save a
staggering number of 6.8 billion dollars on healthcare every year by
preventing respiratory problems, and alleviating other
more amazing is the part of the study that shows the fact that
pollution cleared by trees - approximately 17.4 million tons of it
in 2010 - amounts to one percent improvement of air quality.
course, this improvement of breathable air is more significant for
urban areas than rural ones.
terms of impacts on human health, trees in urban areas are
substantially more significant than rural trees due to their nearness
to people. We found that in general, the greater the tree cover, the
greater the pollution removal, and the greater the removal and
population density, the greater the value of human health benefit,"
the NFS scientists stated.
NFS reports that this density ranges from 2.6 percent in North
Dakota, to 88.9 percent in New Hampshire.
study was published in the journal Environmental Pollution