Marine scientists, planners and government officials say millions of mollusks planted in polluted waters off New York and other cities could go a long way toward cleaning up America’s urban environment. The oyster and other shellfish can slurp up toxins and eliminate decades of dirt.
The oyster is the perfect aquatic engineer for the job. It pumps water to feed, retains any polluted particles and releases the rest — purified. Each one filters about 50 gallons of water a day.




























