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| Case studies | |||
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site type Urban |
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the problem |
Urban stormwater runoff was found to contain chemical contaminants from soil, sediments, groundwater, and surface water. | ||
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the solution |
Trees are the solution. Phytoremediation research has found that poplars, cottonwoods and poplar hybrids (genus Populus) are adept at removing urban pollutants. Boulder has written a manual for how to treat many urban stormwater runoff problems by designing islands to catch runoff from surrounding impervious surfaces. | ||