In a 2016 anniversary article on the aftermath of the Sept. 11, 2001, World Trade Center collapse: “In 2011, the federal World Trade Center Health Program (WTCHP) was established. It has 75,000 registered members, 87% of whom worked on rescue, recovery and clean-up. The rest are New York residents or workers. A total of 1,140 registered members have died since the program was created in 2011, WTCHP spokeswoman Christy Spring said. … Causes of death are not recorded by the WTCHP. There is no central record for how many people died between 2001 and 2011 from illnesses linked to 9/11 fumes and debris, Spring said, nor any way of knowing exactly how many other people have died without any record of their illnesses having been caused by exposure near Ground Zero.”
– Joanna Walters, “9/11 health crisis: death toll from illness nears number killed on day of attacks,” TheGuardian.com, Sept. 11, 2016