This website does readability filtering of other pages. All styles, scripts, forms and ads are stripped. If you want your website excluded or have other feedback, use this form.

Tracing Lung Ailments That Rose With 9/11 Dust - New York Times

success fail Dec MAY Nov 13 2009 2011 2012 53 captures 26 May 2006 - 23 Aug 2019 About this capture COLLECTED BY Organization: Internet Archive The Internet Archive discovers and captures web pages through many different web crawls. At any given time several distinct crawls are running, some for months, and some every day or longer. View the web archive through the Wayback Machine. Collection: Wide Crawl started March 2011

Web wide crawl with initial seedlist and crawler configuration from March 2011. This uses the new HQ software for distributed crawling by Kenji Nagahashi.

What’s in the data set:

Crawl start date: 09 March, 2011
Crawl end date: 23 December, 2011
Number of captures: 2,713,676,341
Number of unique URLs: 2,273,840,159
Number of hosts: 29,032,069

The seed list for this crawl was a list of Alexa’s top 1 million web sites, retrieved close to the crawl start date. We used Heritrix (3.1.1-SNAPSHOT) crawler software and respected robots.txt directives. The scope of the crawl was not limited except for a few manually excluded sites.

However this was a somewhat experimental crawl for us, as we were using newly minted software to feed URLs to the crawlers, and we know there were some operational issues with it. For example, in many cases we may not have crawled all of the embedded and linked objects in a page since the URLs for these resources were added into queues that quickly grew bigger than the intended size of the crawl (and therefore we never got to them). We also included repeated crawls of some Argentinian government sites, so looking at results by country will be somewhat skewed.

We have made many changes to how we do these wide crawls since this particular example, but we wanted to make the data available “warts and all” for people to experiment with. We have also done some further analysis of the content.

If you would like access to this set of crawl data, please contact us at info at archive dot org and let us know who you are and what you’re hoping to do with it. We may not be able to say “yes” to all requests, since we’re just figuring out whether this is a good idea, but everyone will be considered.

TIMESTAMPS Skip to article

N.Y. / Region

Tracing Lung Ailments That Rose With 9/11 Dust

Angel Franco/The New York Times

Some of the people working in the cleanup and recovery effort after Sept. 11 wore masks, but the most effective ones were effective for no more than 20 minutes.

By ANTHONY DePALMA Published: May 13, 2006

As they push their investigation into the health risks to workers in the recovery and cleanup operations at ground zero, medical detectives are focusing on a group of lung diseases that can lead to long-term disabilities and, in some cases, death.

Skip to next paragraph Angel Franco/The New York Times

Linda and Joseph Zadroga console each other at the funeral of their son, Detective James Zadroga, in January. His death was the first to be officially linked by an autopsy report to exposure to the ground zero dust,

After nearly five years, it is still too early for these doctors, scientists and forensic pathologists to say with certainty whether any long-term cancer threat came with exposure to the toxic cloud unleashed by the trade center collapse. But there are already clear signs that the dust, smoke and ash that responders breathed in have led to an increase in diseases that scar the lungs and reduce their capacity to take in and let out air.

The Fire Department tracked a startling increase in cases of a particular lung scarring disease, known as sarcoidosis, among firefighters, which rose to five times the expected rate in the two years after Sept. 11. Though that rate has declined, doctors worry that the disease may be lurking in other firefighters. Experts who regularly see workers who were at ground zero in the 48 hours after the towers' collapse expect monitoring to show many more cases of lung- scarring disorders among that group.

New evidence also suggests that workers who arrived later or worked on the periphery may also be susceptible to debilitating lung ailments.

"We have thousands of people who were down there with unprotected exposures," said Dr. Stephen M. Levin, a director of the World Trade Center Worker and Volunteer Medical Screening Program. "Many will develop asthma and a few will develop this terrible lung scarring that leads to disability or death."

But even in diseases closely related to dust, making a binding connection to ground zero exposure is hard. For instance, the Fire Department has linked sarcoidosis to working at the trade center site, while the Police Department has not.

The clues that led to this new area of medical investigation were stark reminders of what was lost on Sept. 11. They are drawn from cases of statistically unexpected respiratory disease among young responders.

The ailments now seen are far more serious than the general hacking and congestion known as "World Trade Center cough" that initially hit most responders. Rather, these are a set of diseases and disorders that typically take a few years to develop, and in some cases get progressively worse.

The most worrisome to medical experts are granulomatous pulmonary diseases, which show a particular type of swirling marks left on the lungs by foreign matter like dust. Doctors say the severity of the disease is often dictated by a patient's genetic makeup. The diseases include pulmonary fibrosis and sarcoidosis, a sometimes fatal disorder that can be set off when exposure to dust causes the body's immune system to attack itself.

Some people can live with the scarring if they limit their activities, but in others the exposure to foreign material sets off a cascade of ailments that can lead to more debilitating conditions and, eventually, death. Detective James Zadroga, 34, died in January when his badly scarred lungs weakened and his heart gave out. The coroner's report gave the cause of death as "granulomatous pneumonitis," and the autopsy found swirls throughout his lungs caused by foreign material consistent with dust.

Detective Zadroga's death was the first to be officially linked by an autopsy report to exposure to the ground zero dust, although the electronmicroscope comparisons that could have proved the match beyond a reasonable doubt were not done by the coroner's office.

The Uniformed Firefighters Association earlier this year linked the deaths of two firefighters and a battalion chief — from lung disease and respiratory ailments — to the air at ground zero, although the Fire Department itself has not formally acknowledged that those deaths were connected to ground zero work. And three young emergency medical technicians who worked in the dust and smoke at ground zero have died from pulmonary diseases and coronary problems aggravated by their battered lungs, according to the union that represented them.

Next Page » More Articles in New York Region »

Connect with The New York Times on Facebook.

Related Articles

Related Searches

More Articles in New York Region » Advertise on


  1. Paul Krugman: Seniors, Guns and Money
  2. 36 Hours: 36 Hours in San Francisco
  3. Noticed: Who Are You Calling Grandma?
  4. Speaking Up in Class, Silently, Using Social Media
  5. Buying a Trump Property, or So They Thought
  6. At 100, Still a Teacher, and Quite a Character
  7. Children of Hoarders on Leaving the Cluttered Nest
  8. I.R.S. Moves to Tax Gifts to Groups Active in Politics
  9. App Smart: Tutorials and Exercises to Help Students Prepare for the SAT
  10. Pentagon Memo: The Dogs of War: Beloved Comrades in Afghanistan
Go to Complete List »
  1. Obama Seeks Reset in Arab World
  2. Troops, Backed by Tanks, Move to Quell Dissent in Syrian Towns
  3. Feeling Deceived Over Homes That Were Trump in Name Only
  4. Seniors, Guns and Money
  5. Catholic Professors Criticize Boehner in Letter
  6. Mitch Daniels, Weighing Run, Considers Cost to Privacy
  7. Vitaly Borker of DecorMyEyes Pleads Guilty
  8. Two Men Arrested in New York Terror Case, Police Say
  9. Romney Says Obama's Health Care Law Should Be Repealed
  10. Jim Cramer Hits an All-Time High
Go to Complete List »
  1. osama bin laden
  2. may 2, 2011
  3. china
  4. japan
  5. modern love
  6. rami makhlouf
  7. education
  8. social q's
  9. spain
  10. krugman
Go to Complete List »
  1. Paul Krugman: Seniors, Guns and Money
  2. Buying a Trump Property, or So They Thought
  3. Pakistan Army Chief Balks at U.S. Demands to Cooperate
  4. Movie Review | 'Bridesmaids': Deflating That Big, Puffy White Gown
  5. Suicide Bomber Kills at Least 80 in Pakistan
  6. David Brooks: Let’s Go Caps!
  7. 36 Hours: 36 Hours in San Francisco
  8. Speaking Up in Class, Silently, Using Social Media
  9. U.S. Attorney Sends a Message to Wall Street
  10. Editorial: Gutting Class Action

Inside Woody Allen's process

Also in Movies »


What's the single best exercise?


Dance »
When Brecht and Weill Danced, Revisited
Movies »
The Passions and Demons of Yves Saint Laurent
Opinion »

Op-Ed: Abandoned on the Border

If Washington won’t get tough on immigration, Arizona has to, writes Larry A. Dever.

Business »
U.S. Attorney Sends a Message to Wall Street
Opinion »
Disunion: A Dangerous Neutrality
U.S. »
Alabama Storms Create a Scramble for Housing
N.Y. / Region »
A Constant in a Changing Place Is Endangered
Travel »
36 Hours in San Francisco
Art & Design »
A Glow From Within and on the Surface
Opinion »

Op-Ed: What Libya Needs

The Libyan opposition needs financial support and diplomatic recognition to defeat Col. Qaddafi, Mahmoud Gebril ElWarfally writes.

Movies »
Deflating That Big, Puffy White Gown
Opinion »
Room for Debate: Is It Better to Be Taller?
Home Copyright 2006 The New York Times Company