Today's News

Study: WTC dust cuts lung function capability

New York City firemen and emergency personnel exposed to dust from the collapse of the World Trade Center buildings experienced a decrease in lung function capability equal to 12 years of age-related decline, reports a new study published by the American Thoracic Society.

Researchers compared lung function data compiled by the New York City Fire Department for more than 12,000 of its firefighters and emergency personnel for the four years before the attacks and one year after. All of those included in the study were directly exposed to toxins surrounding Ground Zero after the towers collapsed, arriving either before the collapse or in the days immediately following.

More than 14 percent (1,660) of the rescue workers experienced early high-intensity exposure to the dust by arriving the morning of 9/11 and by being present during the collapse of the twin towers, the authors said. Nearly 68 percent (8,185) had intermediate-intensity exposure by arriving two days following the collapse. Roughly 16 percent (1,921) had low-intensity exposure by arriving at the site on or after the third day.

The investigators said that rescue workers who had exposure to early and intermediate arrival-based periods had significantly more frequent and more severe respiratory symptoms than did the group that arrived later. Researchers also noted that the initial lack of adequate respiratory protective equipment decreased any protective impact it would have been able to provide.

Did you enjoy this article? Click here to subscribe to ISHN.

You must login or register in order to post a comment.



Image Galleries

Scenes from the World of Safety

Sights, signs & symbols from the National Safety Congress & Expo held in San Diego, CA, September 15-18

4/21/15 2:00 pm EDT

The Safety Selfie: It’s time to take a “snap shot” of your safety program and contemplate what others see

We all know perception is reality and that people perceive things differently. As a safety manager, your perception of your safety program almost certainly differs from that of your workers and your managers. We will use our “Safety Selfies” to expose weaknesses, real and perceived, and to talk about how best to make improvements.

ISHN Magazine


2015 April

Check out ISHN's April issue, which features content about lockout-tagout, heat stress, hearing protection and more!

Table Of Contents Subscribe


M:\General Shared\__AEC Store Katie Z\AEC Store\Images\ISHN\safetyfourth.jpg
Safety Engineering, 4th Edition

A practical, solutions-driven reference, Safety Engineering, 4th edition, has been completely revised and updated to reflect many of today’s issues in safety.

More Products

For Distributors Only - January 2015



For Distributors Only is ISHN's niche brand standard-sized magazine supplement aimed at an audience of 2,000 U.S. distributors that sell safety products. Circulation only goes to distributors. 



Facebook logo Twitter YouTubeLinkedIn Google + icon

ishn infographics

2012 US workplace deathsCheck out ISHN's new Infographic page! Learn more about worker safety through these interactive images. CLICK HERE to view the page.