Asthma Rates In Urban Areas Reduced By Adequate And Appropriate Greenspace

We wanted to clarify how urban vegetation may be related to respiratory health. We know that trees remove the air pollutants which can bring on asthma attacks, but in some situations they can also cause localised build-ups of particulates by preventing their dispersion by wind. And vegetation can also produce allergenic pollen which exacerbates asthma.  We found that on balance, urban vegetation appears to do significantly more good than harm. However, effects were not equal everywhere. (Click on title for full story.)