Health concerns are caused by the presence of smaller particulates from manmade sources that cannot be filtered and therefore enter out lungs. Trees help curb air pollution Through the photosynthesis process, trees take in carbon monoxides emitted by cars and convert this pollutant into oxygen. Thus, trees help clean the air. The complex chemical reactions in our atmosphere that create ozone occur more rapidly with higher temperatures. This is why most Houston ozone noncompliance days occur during the summer.
Trees lower our urban temperature thus slowing the creation of ozone.
Removing trees is an even more absurd solution to Houston's nonattainment air quality status. It is time to stop blaming trees for problems that industrialization and our motorized society have brought about.