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Environmental Impact of 9/11 Attacks

Expert opinions and Independent studies

Project: Environmental Impact of the 9/11 Attacks
Open-Content project managed by Derek, paxvector

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Phillip Landrigan, chairman of the Department of Community and Preventive Medicine at the Mount Sinai Medical Center in New York, and a leading expert on occupational diseases, tells the Minnesota Star Tribune that acute exposure to dust and soot could cause bronchitis, eye injuries and asthma-like breathing difficulties in the short term. Landrigan says that workers who inhale the dust increase their risk of developing life-threatening asbestos-related lung diseases, like mesothelioma, an incurable cancer. [Star Tribune (Minneapolis), 9/14/2001]

Entity Tags: Phillip Landrigan

Category Tags: Expert opinions/Independent studies, Key Events

EPA Region 2 hires an industrial hygienist to test the lobby of its building at 290 Broadway St. for the presence of asbestos. The building is located 6 blocks northeast of the World Trade Center site. Some of the settled dust samples collected with a micro-vac and analyzed using transmission electron microscopy (TEM) reveal the presence of chrysotile asbestos. Light microscope tests are also used to analyze the dust, but these tests turn up negative. [Jenkins, 3/11/2002 pdf file; Kupferman, 2003 pdf file; Jenkins, 7/4/2003 pdf file] Air monitoring also reveals the presence of asbestos:
bullet 20 s/mm [Environmental Protection Agency, 7/15/2004 pdf file]
bullet 20 s/mm [Environmental Protection Agency, 7/15/2004 pdf file]
bullet 60 s/mm [Environmental Protection Agency, 7/15/2004 pdf file]
bullet 60 s/mm [Environmental Protection Agency, 7/15/2004 pdf file] The discovery of asbestos at the building prompts EPA Region 2 to have the building professionally abated. [Jenkins, 3/11/2002 pdf file; Kupferman, 2003 pdf file; Jenkins, 7/4/2003 pdf file] The EPA later states that micro-vac collection of dust samples (one of the preferred methods of obtaining samples) and TEM testing are not necessary for schools and residences in Lower Manhattan. At 105 Duane Street, the EPA will even discount results obtained by micro-vac collection and TEM tests when they contradict the agency’s own results (see December 3, 2001). [Office of US Congressman Jerrold Nadler, 4/12/2002 pdf file; Wall Street Journal, 5/9/2002 pdf file; Kupferman, 2003 pdf file]

Entity Tags: Environmental Protection Agency

Category Tags: Expert opinions/Independent studies

The New Scientist reports concerns that Manhattan residents are at serious risk from smoke and airborne contaminants including carcinogenic asbestos. Michelle De Leo of the British Lung Foundation advises people to “minimize exposure as much as possible by avoiding the area” or by using respiratory protection. Small dust particles easily penetrate the respiratory system, collecting in remote portions of the lung, and resulting in scarring. “This impairs lung function and is permanent,” De Leo explains. “Reducing exposure as much as possible is vitally important.” Other experts warn that toxic fumes from burning furniture in the towers pose additional risks. [New Scientist, 9/14/2001]

Entity Tags: Michelle De Leo

Category Tags: Expert opinions/Independent studies, Key Events

Allergists urge New Yorkers with lung disease to use caution in Lower Manhattan. Dr. Daniel Mayer, MD, president of the New York Allergy Society, is quoted in Allergy, Asthma & Immunology Online, “I recommend that people with chronic lung conditions and allergies don’t go near the site.” [Allergy, Asthma & Immunology Online, 9/15/2001]

Entity Tags: Daniel Mayer

Category Tags: Expert opinions/Independent studies, Key Events

ATC Associates of New York analyzes bulk dust samples taken from Vesey and Liberty Streets near the WTC site by Monona Rossol, an industrial hygienist with the Arts, Crafts, and Theater Safety organization, and Attorney Joel R Kupferman of the New York Environmental Law and Justice Project. The first four samples tested are found to contain 10-15 percent fiberglass, an extremely high concentration. A quarter of the samples have an asbestos level of 2.1 percent. [Environmental & Toxicology International, 9/19/2001; NY Environmental Law and Justice Project, 9/22/2001; Village Voice, 9/26/2001; Newsday, 10/12/2001] Shortly after these results are made public, the New York State Department of Health warns local labs that they will lose their licenses if they process any more “independent sampling.” [Kupferman, 2003 pdf file]

Entity Tags: Joel R Kupferman, New York Environmental Law and Justice Project, ATC Associates, Arts, Crafts and Theater Safety organization (ACTS), US Department of Health and Human Services

Category Tags: Expert opinions/Independent studies, Key Events

Business Week publishes a news report on the potential environmental and human health impact of the World Trade Center collapse. The report cites experts who challenge EPA claims that the air-quality of surrounding areas does not pose significant risks to public health. “[M]any scientists and public-health experts in New York, across the country, and in Europe counter that dust and toxic materials, not asbestos, may be the biggest threat and that the EPA’s testing is, at best, inconclusive,” the magazine reports. Part of the problem lies in lax EPA pollution limits, which experts say “are often heavily influenced by industry” and consequently much too high—“especially in an event of such unprecedented magnitude that flooded the environment with so many contaminants simultaneously.” The report goes on to say that the experts are concerned that “everyone who was in the explosions’ vicinity could have potentially suffered acute exposure from the dust and smoke and could be at risk for everything from near-term respiratory ailments to, over decades, cancer.” Richard Clapp, a professor at Boston University’s School of Public Health, tells Business Week: “Even at low or barely detectable levels, that’s a lot of asbestos fibers and other dangerous particles going into people’s lungs. If those get lodged, they could do damage later on.” Temple University civil engineering professor William Miller notes that the trucks hauling debris away from the WTC are probably dispersing toxic debris “all over Lower Manhattan.” The article says the smallest dust particles, which are difficult to detect, are also the “most insidious” and are not filtered out by paper masks. [Business Week, 9/20/2001] Yet the EPA had explicitly stated that people living and working in the area did not need to use respirators (see September 22, 2001).

Entity Tags: Environmental Protection Agency, Richard Clapp, William Miller

Category Tags: Expert opinions/Independent studies, Key Events

Dermatologist Paul Dantzig writes to The New York Times that he is “beginning to see dermatological problems arising from the World Trade Center catastrophe, like foreign-body reactions on the skin and cutaneous infections.” He notes that the “kinds of problems that occur on the skin can also occur in the lungs,” and adds that “People who inhaled large amounts of dust and debris from the center’s collapse will be at risk of developing granulomas and fibrosis of the lungs.” He suggests that people who have been exposed to WTC contaminants be “followed medically and receive X-rays now and periodically over the next few years.” [Village Voice, 9/26/2001]

Entity Tags: Paul Dantzig

Category Tags: Expert opinions/Independent studies, Key Events

A team of specialists from UC Davis, known as the Detection and Evaluation of Long-range Transport of Aerosols (DELTA) Group, conducts air sampling from the roof of 201 Varick St., located one mile north-northeast of the WTC site, at the request of the Department of Energy. Regional meteorology will suggest that the monitoring equipment’s location at Varick Street probably receives material from the World Trade Center site about half the time. The group’s analysts use seven different techniques to analyze the data including synchrotron-induced X-ray fluorescence, scanning transmission ion microscopy and proton elastic scattering analysis, and soft beta mass measurements and scanning electron microscopy (SEM). DELTA will examine the samples for dozens of substances including carbon-based compounds from burning wood, plastic and carpets; glass shards; and asbestos. DELTA will release summary reports in December (see Early November 2001) and February (see February 11, 2002). [JOM, 12/1/2001; Dateline (Univ of Calif, Davis), 2/15/2002; Chemical and Engineering News, 2/18/2002]

Entity Tags: US Department of Energy, DELTA Group

Category Tags: Expert opinions/Independent studies

HP Environmental, a Virginia law firm, releases a study concluding that there is an overwhelming concentration of ultra fine fibers—particles measuring less than half a micron in size—in the Manhattan area that have eluded the standard polarized light microscopy (PLM) techniques (see September 12, 2001) used by the EPA. The report was compiled by several scientists and industrial hygienists including Hugh Granger, Ph.D., CIH and Piotr Chmielinski, CIH of HP Environmental; Tom McKee, Ph.D. of Scientific Laboratories; Jim Millette, Ph.D. of MVA, Inc.; and George Pineda, CIH of ET Environmental. Newsweek reports that according to Granger, the study’s lead author, high concentrations of these fibers have been detected “within several blocks of Ground Zero, including inside closed and undamaged offices nearby and as high up as 36 stories.” Dr. Philip Landrigan, a leading expert on asbestos toxicity, commenting on the report’s findings, tells Newsweek, “I find this very troublesome. The smaller the particle, the more easily it can be aerosolized. And the easier job that it has penetrating right down into the very depths of the lungs.” The study is based on laboratory tests of samples collected between September 21 and 28. [Newsweek, 10/5/2001; Associated Press, 10/10/2001; Reuters, 10/15/2001; New York Magazine, 10/22/2001] The study is initially posted on the website of the American Industrial Hygiene Association (AIHA). But is removed after only 5 hours. Cate Jenkins, a veteran EPA employee, will later suggest that “its removal was motivated by the fact that it conflicted with Governor Whitman’s press release of the same day (see October 3, 2001) claiming no hazardous exposures to asbestos except at Ground Zero.” [Jenkins, 12/3/2001 pdf file]

Entity Tags: Phillip Landrigan, Tom McKee, Ph.D., Piotr Chmielinski, CIH, Jim Millette, Ph.D., HP Environmental, George Pineda, CIH, Hugh Granger

Category Tags: Expert opinions/Independent studies, Key Events

A draft report written by Dr. Roderick Wallace of New York State Psychiatric Institute and Dr. Deborah N. Wallace of Columbia University, warns that residents of downtown Manhattan may later develop symptoms similar to “particularly acute forms of Gulf War Syndrome” because of their exposure to the contaminants released when the World Trade Center towers collapsed and burned. The report’s authors write that the collapse and fires appear “to have exposed an exceedingly large population to dioxins, dibenzofurans, related endocrine disruptors, and a multitude of other physiologically active chemicals arising from the decomposition of the massive quantities of halogenated hydrocarbons and other plastics within the affected buildings.” The expected pattern “greatly transcends a simple ‘Post Traumatic Stress Disorder’ model, and may come to resemble particularly acute forms of Gulf War Syndrome,” they say. [Wallace and Wallace, 10/8/2001 pdf file]

Entity Tags: Deborah N Wallace, Rodrick Wallace

Category Tags: Expert opinions/Independent studies, Key Events

Hundreds of residents and workers in Lower Manhattan attend a public meeting at Pace University where a panel of experts discusses the potential health risks associated with post-WTC collapse air contamination. Though they provide reassurances on the issue of asbestos levels, they highlight the uncertainty over the potential impact of other contaminants. “We don’t know all the facts,” Stephen Levin MD, a panelist, notes. “We do know that the further you are from the site, the less risk you have. No one at this point can give you absolute reassurance that there is no risk.” The New York Environmental Law and Justice Project is present at the meeting and distributes an informational flier citing evidence from an independent analysis of dust samples finding that fiberglass composes 15% by weight of the bulk sample (see September 19, 2001). The flyer also warns of the effects of WTC fires spewing highly toxic combustion products, including dioxins, PCBs, furans and other cancer-causing substances. [Newsday, 10/12/2001]

Entity Tags: Stephen Levin MD, New York Environmental Law and Justice Project

Category Tags: Expert opinions/Independent studies, Key Events

Eric Chatfield, Ph.D., and John R. Kominsky of Chatfield Technical Consulting Limited, frequently contracted by EPA, complete a report analyzing the particulate matter found in two Manhattan apartments. The report was commissioned by the Ground Zero Task Force, whose members include US Congressman Jerrold Nadler as well as numerous state and city officials. The study found “significantly elevated” concentrations of asbestos in dust samples taken from the apartment interiors of the two buildings. The highest asbestos reading from the “low-exposure” building located at 45 Warren St was 316 structures/square mm (s/mm [Chatfield and Kominsky, 10/12/2001 pdf file; Jenkins, 12/3/2001 pdf file; Office of US Congressman Jerrold Nadler, 4/12/2002 pdf file] The EPA will neither comment on, nor take any action with respect to, these findings. [Office of US Congressman Jerrold Nadler, 4/12/2002 pdf file]

Entity Tags: John R. Kominsky, Eric Chatfield, Chatfield Technical Consulting Limited

Category Tags: Expert opinions/Independent studies, Key Events

A draft report prepared by IT Corporation of Las Vegas for the EPA’s Office of Emergency and Remedial Response says that bulk dust samples taken from the World Trade Center site were found to contain elevated concentrations of several toxic compounds including CDD/CDF, PCBs, PAHs, and metals. [Environmental Protection Agency, 10/29/2001 pdf file]

Entity Tags: IT Corporation

Category Tags: Expert opinions/Independent studies, Key Events

Paul Bartlett, an expert on aerosols containing PCBs and dioxins at the Queens College Center, is interviewed by the New York Daily News. Dr. Bartlett feels the EPA’s response to the WTC attacks has been inadequate. “What I’ve seen of the data is troubling,” he says. “Their detection limits are aimed at threshold levels for occupational exposure. They aren’t treating this as a disaster, so they’re not asking what extent and how far are people being exposed or who is possibly being affected by the releases of chemicals. They’re just checking what emissions are exceeding regulations.” He also says the WTC site should be treated like a Superfund site. [New York Daily News, 10/26/2001]

Entity Tags: Paul Bartlett

Category Tags: Expert opinions/Independent studies, Key Events

A team of specialists from UC Davis, the Detection and Evaluation of Long-range Transport of Aerosols (DELTA) Group, sends the results from their first samples (see October 2, 2001-Mid-December, 2001) to the Lawrence Berkeley National Laboratory’s Advanced Light-Source Lab. Since October 2, the group has been conducting air sampling from the roof of 201 Varick St., located one mile north-northeast of the WTC site, at the request of the Department of Energy. According to the team, data indicates that the WTC plume “in many ways [resembles] those seen from municipal waste incinerators and high temperatures processes in coal-fired power plants.” A summary report of the data concludes: “The size fractions above 1 micrometer contained finely powdered concrete gypsum, and glass, with soot-like coatings and anthropogenic metals, but little asbestos. Composition in the very fine size range (0.26 > Dp > 0.09) was dominated by sulfuric acid and organic matter, but, including polycyclic aromatic hydrocarbons (PAHs) and their derivatives, and glasslike silicone containing aerosols.” [JOM, 12/1/2001; Dateline (Univ of Calif, Davis), 2/15/2002; Chemical and Engineering News, 2/18/2002]

Entity Tags: DELTA Group, US Department of Energy, Thomas Cahill

Category Tags: Expert opinions/Independent studies, Key Events

David Newman, of the New York Committee for Occupational Safety and Health, interviewed by Newsday, disagrees with the EPA’s position that asbestos levels have not been high enough to pose long term health risks. “While diseases such as asbestosis result from exposure to asbestos over long periods of time, asbestos-related cancers, such as mesothelioma, which have a 10- to 40-year latency period, can develop from low-level exposure to this killing dust,” Newman explains. [Newsday, 11/9/2001 pdf file]

Entity Tags: David Newman

Category Tags: Expert opinions/Independent studies, Key Events

Sheldon Silver, a New York City Assembly Speaker (D-Manhattan), says that his office has received a “significant influx” of complaints concerning skin rashes, sinusitis and aggravated asthma from people working and living in Lower Manhattan. [New York Daily News, 11/27/2001]

Entity Tags: Sheldon Silver

Category Tags: Expert opinions/Independent studies, Key Events

Dr. Stephen Levin of the Mount Sinai-I.J. Selikoff Center for Occupational and Environmental Medicine testifies before the New York State Assembly’s Standing Committees on Environmental Conservation, Health, and Labor that conditions “seen in adults who have been at or near” the WTC site “for as little as twenty-four to thirty-six hours” included “reactive airways disease, new onset or exacerbation of pre-existing asthma, RADS [reactive airway dysfunction syndrome], sinusitis, irritant rhinitis, persistent cough, and diffuse irritation of nasal mucosal surfaces.” Among first-responders “or individuals who were hit by the cloud of dust and debris” following the collapse, he has observed “a dramatic increase in GERD [gastro-esophageal reflux] symptoms,” which for some people can be life-threatening. [Kupferman, 2003 pdf file]

Entity Tags: Stephen Levin MD

Category Tags: Expert opinions/Independent studies, Key Events

The Indoor and Built Environment Journal publishes a study by Dr. E. B. Ilgren, MD, which concludes that residents near the WTC site in downtown Manhattan “do not appear to be at risk of long term, asbestos—or metal—related disease but their homes must still be cleaned professionally to eliminate highly irritating, aerosolized dusts.” [Ilgren, 12/2001]

Entity Tags: E.B. Ilgren MD

Category Tags: Expert opinions/Independent studies, Key Events

After the New York City Department of Health tests Tribeca Tower at 105 Duane Street for asbestos and finds nothing, the building’s residents contact Attorney Joel R Kupferman of the New York Environmental Law and Justice Project (NYELJP) for assistance. Certified industrial hygienist, Ed Olmstead, collects dusts samples for Kupferman using a micro-vac. Analysis is conducted using the highly sensitive transmission electron microscope (TEM) method. The tests results reveal high concentrations of asbestos. A sample taken from a hallway ventilation duct that circulates air throughout the building is found to contain 550,000 structures of asbestos per square centimeter. When confronted with these results, the EPA claims the hygienist’s testing method was unsound and that the results were an aberration. The landlord of the building, citing EPA and DEP assurances that the test results could be ignored, refuses to appropriately abate the building. [Jenkins, 12/3/2001 pdf file; Washington Post, 1/8/2002; Kupferman, 2003 pdf file; Salon, 8/15/2003]

Entity Tags: New York City Department of Environmental Protection, Environmental Protection Agency, Ed Olmstead

Category Tags: Expert opinions/Independent studies, Key Events

An article published in the Environmental Health Perspectives journal, titled, “Environmental Aftermath,” suggests that the collapse of the World Trade Center towers “may have serious long term environmental health effects on those in harm’s way, including children, office workers, rescuers and residents.” It cites “asbestos, lead and PCBs (or polychlorinated biphenyls) present in the dust created by the Twin Towers collapse as among the most potentially serious lingering exposures to the community, including rescue workers, office workers and the more than 20,000 residents, and 3,000 children, who live within half a mile of Ground Zero.” [Environmental Health Perspectives, 11/2001; Environmental Health Perspectives, 12/4/2001]

Category Tags: Expert opinions/Independent studies, Key Events

The environmental consulting firm, H.A. Bader Associates, conducts several environmental tests at Fiterman Hall of the Borough of Manhattan Community College, CUNY, (BMCC), located four blocks from the World Trade Center site (see October 1, 2001). The test results indicate “unusually high levels of dioxin in dust samples throughout the building” that are “levels 20 to 90 orders of magnitude above results from other buildings where… [the] firm has tested or cleaned in Lower Manhattan.” An EPA toxicologist who reviews the firm’s data will tell the New York Daily News in February that he believes the levels in the building are “below EPA levels of concern.” [New York Daily News, 2/7/2002 pdf file]

Entity Tags: Borough of Manhattan Community College, CUNY, (BMCC)

Category Tags: Expert opinions/Independent studies, Key Events

Nina Habib, an EPA spokeswoman, acknowledges that the thousands of asbestos tests performed by the EPA so far have been of outdoor air only. She asserts that the results from those tests were “indicative of what’s in people’s apartments as well.” [Jenkins, 7/4/2003 pdf file]

Entity Tags: Environmental Protection Agency, Nina Habib

Category Tags: Expert opinions/Independent studies, Key Events

The Civil Service Employees Association tests a dust sample taken from a window air conditioner located at the Department of Motor Vehicles offices and finds 8 percent asbestos. [New York Daily News, 9/11/2003]

Category Tags: Expert opinions/Independent studies, Key Events

The New York Law Journal reports that the Legal Aid Society’s offices, located adjacent to the destroyed World Trade Center at 90 Church Street, “are so contaminated with asbestos, mercury and other poisons that the building’s interior will have to be stripped to the slab, cleaned and rebuilt.” [New York Law Journal, 2/1/2002; Nordgren, Goldstein, and Izeman, 2/2002 pdf file]

Category Tags: Expert opinions/Independent studies, Key Events

The Delta Group releases a final report on air quality data collected in Manhattan between October and December, 2001 (see October 2, 2001-Mid-December, 2001). Thomas Cahill, PhD, Delta Group member, is a noted expert on composition and transport of ultra-fine airborne particles. Dr. Cahill explains that World Trade Center aerosols contained high levels of sulfur, sulfur-based compounds, and very fine silicon that probably came from the thousands of tons of glass that had been in the WTC buildings. The presence of these fine particles decreased during the month of October. The largest spike in very fine particle levels measured 58 micrograms per cubic meter which Cahill says was “an extremely high peak.” The sampling also indicated that there were almost always high concentrations of coarse particles—those about 12 micrometers to 5 micrometers in diameter—present in the air near the WTC site. “These particles simply should not be there,” Cahill says. “It had rained, sometimes heavily, on six days in the prior three weeks. That rain should have settled these coarse particles.” He says their presence suggests the hot debris pile was continually generating the larger particles. The study also determined the chemical composition of the dust it sampled. Some of the metals found in the air occurred at the highest levels ever recorded in the United States. Metals present at high levels included iron, titanium (some associated with powdered concrete), vanadium and nickel (often associated with fuel-oil combustion), copper and zinc. Mercury, lead, and asbestos were present at low levels. [On Earth, 2002; Dateline (Univ of Calif, Davis), 2/15/2002; Chemical and Engineering News, 2/18/2002]

Entity Tags: DELTA Group, Thomas Cahill

Category Tags: Expert opinions/Independent studies, Key Events

Dr. David O. Carpenter from the School of Public Health at the University of Albany concludes in a detailed study that the Stuyvesant High School building “has not yet been proven safe.” [Environmental Protection Agency National Ombudsman, 3/27/2002]

Entity Tags: David O. Carpenter, Stuyvesant High School

Category Tags: Expert opinions/Independent studies, Key Events

A New Jersey-based consultant, Uday Singh, conducts tests for toxic contaminants in various apartments and street locations, including City Hall Park, and finds a high concentration of mercury vapor. “When compared with mercury concentrations observed in non-industrial urban environments, the mercury vapor concentrations in Lower Manhattan were greater by a factor of 1,000 to 1 million,” he tells Newsday. “It points to a potential for chronic exposure, and it is important that further studies be undertaken immediately,” he adds. [Newsday, 6/6/2002]

Entity Tags: Uday Singh

Category Tags: Expert opinions/Independent studies, Key Events

Joel Kupferman of the New York Environmental Law and Justice Project collects dust samples at 150 Franklin Street at the request of one of the building’s tenants. He sends three samples to a lab which tests the dust for asbestos using transmission electron microscopy (TEM). The lab finds asbestos levels of 1.2, 1.4 and 1.8 percent. In September (see Shortly after September 17, 2001), the tenants had cleaned the building according to instructions provided by the city’s health department (see September 17, 2001). The building’s tenants—among them a family-run child care center—had relied on assurances from EPA and city officials that the downtown air was safe and consequently did not have the building professionally tested. After Kupferman notifies the city about these alarming results, the city tests the building using polarized light microscopy (PLM) on April 18 and does not find elevated asbestos levels. The city’s samples are retested by the EPA using transmission electron microscopy (TEM), and found to have an asbestos level ranging from 2 percent to 5 percent. “We recommended that [the building] be professionally cleaned,” EPA spokesperson Mary Mears later says. [New York Daily News, 5/2/2002; Wall Street Journal, 5/9/2002 pdf file; Salon, 8/15/2003]

Entity Tags: Joel R Kupferman, New York Environmental Law and Justice Project, Environmental Protection Agency

Category Tags: Key Events, Expert opinions/Independent studies

Bruce Lippy, PhD. a certified industrial hygienist with the Operating Engineers National Hazmat Program, discusses his data with Occupational Hazards, “60 percent of our samples were greater than the EPA clearance level….” [Kupferman, 2003 pdf file]

Entity Tags: Bruce Lippy

Category Tags: Expert opinions/Independent studies, Key Events

An environmental engineer tests Stuyvesant High School’s carpets and fabrics for contamination using the ultrasonication method and finds an extremely high concentration of 60,000 to 2.5 million structures of asbestos per square centimeter in the school’s carpets. The Department of Education claims the results are “inconclusive.” [H.A. Bader Consultants, 8/2/2002 pdf file; Jenkins, 8/29/2002 pdf file; Kupferman, 2003 pdf file]

Entity Tags: Stuyvesant High School

Category Tags: Expert opinions/Independent studies, Key Events

At a New York Academy of Medicine briefing, doctors discuss how the environmental conditions at Ground Zero during the recovery effort have so far impacted the health of those who worked at the site. Dr. Steven Levin of the Occupational Medical Center at Mt. Sinai Medical Center explains that several of the more than 1,000 workers he has seen “have developed inflammatory responses” in their lungs and adds that he has seen only a few recover. Dr. Kerry Kelly, chief medical officer for the NYC Fire Department, says that while only 3 percent of New York City firefighters had respiratory problems prior to September 11, this number has since increased to 15.6 percent. Another speaker at the briefing, Lung Chi Chen of the NYU Department of Environmental Medicine, suggests that either the pulverized glass, the high pH level (see September 20, 2001), or a combination of the two, probably causes the World Trade Center cough. “We can show that human cells can tolerate acidic exposure very well,” Chen says in an interview. “But the cell cannot tolerate alkali exposure. You shift the pH up and the impact is devastating.” [Newsday, 9/10/2002; Newsday, 9/30/2002]

Entity Tags: Kerry Kelly, Lung Chi Chen, Stephen Levin MD

Category Tags: Expert opinions/Independent studies, Rescue/recovery workers, Key Events

When asked to comment on allegations that the EPA had intentionally used testing methods incapable of detecting ultra fine particles and fibers in order not to find asbestos and other contaminants in Lower Manhattan, agency spokesperson Mary Mears tells Salon Magazine, “There are certain differences of opinion that will not be resolved.” She dismisses the fact that independent labs have found much greater levels of contamination than the EPA’s tests, arguing that the private labs may not have used precise EPA methods. She also denies that conditions in Manhattan are unsafe. “We do not agree that this is a public health concern,” she says. “We have not seen the evidence, we do not see the danger.” She explains that the volunteer program is not meant to address a safety problem, just calm the nerves of Lower Manhattan residents. “While we felt there wasn’t a big risk in the long term, we felt a need to offer something to those residents,” she said. “We do not feel this is a public-health emergency. But it goes well beyond anything that could be called a PR campaign.” [Salon, 8/15/2003]

Entity Tags: Mary Mears, Environmental Protection Agency

Category Tags: Expert opinions/Independent studies, Government tests, Deception, Key Events

William Horgan, a certified industrial hygienist who works for Assessment Resources and Technologies, Inc., tells Salon magazine that he has found high concentrations of heavy metals in the more than 150 floors he has tested in various high-rise buildings. “I see the heavy metal contamination as equal to if not greater than the asbestos contamination,” Horgan tells Salon. “Pretty much on every floor we found one of the components: lead, cadmium or mercury.” Approximately 75 percent of Horgan’s tests indicated lead levels exceeding the US Department of Housing and Urban Development benchmark requiring lead abatement. He also found mercury in dozens of buildings. “In the years I’ve been doing this, I’ve never found mercury in any of our buildings,” he notes. “Why all of a sudden would we find mercury?” [Salon, 8/15/2003]

Entity Tags: William Horgan

Category Tags: Expert opinions/Independent studies, Key Events

A team of scientists from the University of California at Davis, known as the DELTA group, complete a study on the composition of the toxic gases released during fires burning at the World Trade Centers following the September 11 attacks. DELTA scientists release their report at a meeting of the American Chemical Society in New York. The study concludes that samples taken from the World Trade Center site contained four types of particles that the EPA considers harmful to human health: ultra-fine particulate matter composed of heavy metals known to cause lung damage, sulfuric acid harmful to pulmonary cells, ultra-fine glass particles that can travel through the lungs to the bloodstream and heart, and high-temperature carcinogenic organic matter. [Reuters, 9/11/2003]

Entity Tags: DELTA Group, Thomas Cahill

Category Tags: Expert opinions/Independent studies

Miriam Diamond, PhD, a professor in the Department of Geography at the University of Toronto, and her colleagues obtain sample residues from the windows of nine buildings in Lower Manhattan, all located within one kilometer of the WTC disaster site. These samples are tested for polybrominated diphenyl ethers (PBDEs), polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and polychlorinated naphthalenes (PCNs). Dr. Diamond and her colleagues find that PAHs, PCNs and PCBs are present in concentrations “up to 10 times greater than New York City’s normal background levels and possibly 100 times higher than surrounding rural areas.” The findings are later published in the July 1, 2004 print edition of Environmental Science and Technology, a peer-reviewed journal of the American Chemical Society, the world’s largest scientific society. [Salon, 8/15/2003; American Chemical Society, 6/4/2004]

Entity Tags: Miriam Diamond

Category Tags: Expert opinions/Independent studies, Key Events

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