June 1

　　Construction supervisor John Feal arrived at Ground Zero the day after the September 11 World Trade Center attacks to help with the recovery efforts. He only worked there for five days—forced to stop when a falling steel beam crushed his left foot—but the experience has never stopped haunting him.

　　Feal, now 39, has had surgery on his foot more than two dozen times and still walks with a lopsided gait. But he’s developed other health problems, too, including gastroesophageal reflux disease, posttraumatic-stress disorder and respiratory problems. His lung capacity has diminished to the point that he occasionally stops to gasp for breath midsentence. Unable to work, and struggling to cover his mounting medical bills.

　　As health officials are discovering, Feal is not alone.

　　Only one responder’s death—that of New York City police detective James Zadroga, who succumbed to respiratory failure in January—has been directly linked by a medical examiner to his exposure to environmental toxins at Ground Zero. But at least six other deaths (from causes ranging from heart failure to lung cancer) have been reported among responders in their 30s and 40s who worked at the World Trade Center site. And thousands more are struggling with health problems far worse than officials initially anticipated. “People think that it’s just a few guys from 9/11 suffering,” says Feal, “but there are literally thousands of us.”

　　It’s too early to know with certainty how many deaths may result from the cocktail of asbestos, mercury, silica, fiberglass and other potentially hazardous materials released when the twin towers collapsed. Nor is it possible to say with certainty which health problems are related to the responders’ work in the rubble of the trade center. But it’s clear that many of the estimated 40,000 police, firefighters and other workers who came to the site to assist in rescue and recovery efforts have begun suffering from similar and sometimes serious ailments during the past four and a half years. Dr. Stephen M. Levin, codirector of the World Trade Center Worker and Volunteer Medical Screening Program at Mount Sinai Hospital in New York， says “To listen to how life has become for some patients, it’s absolutely horrifying.”