| http://www.w3.org/ns/prov#value | - Even a light shower can create thousands of gallons of stormwater that washes over Seattle???s nonabsorbent streets, sidewalks and parking lots, sweeping up an array of pollutants and turning into a river of oil, metals, pesticides and other contaminants.It???s estimated that 75 percent of the toxic chemicals in Puget Sound are carried there by runoff.CURTIS HINMAN, Washington State University Ext
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