!! History Commons Alert, Exciting News

Context of 'September 26, 2001: Samples Indicate High Lead Levels near Ground Zero'

This is a scalable context timeline. It contains events related to the event September 26, 2001: Samples Indicate High Lead Levels near Ground Zero. You can narrow or broaden the context of this timeline by adjusting the zoom level. The lower the scale, the more relevant the items on average will be, while the higher the scale, the less relevant the items, on average, will be.

The US Environmental Protection Agency (EPA) issues its Interim Asbestos NESHAP Enforcement Guidance on “Friable Asbestos,” which clarifies the definition and acceptable use of “asbestos-containing” materials. The National Emission Standards for Hazardous Air Pollutants (NESHAP), issued in 1973, defined “asbestos-containing materials,” or ACMs, as products that contain more than 1 percent asbestos by weight. Citing the original document, the guidance explains that NESHAP’s purpose was to “ban the use of materials which contain significant quantities of asbestos, but to allow the use of materials which would (1) contain trace amounts of asbestos that occur in numerous natural substances, and (2) include very small quantities of asbestos (less than 1 percent) added to enhance the material’s effectiveness.” However, the guidance stresses, the “EPA NESHAP definition of 1 percent by weight was not established to be a health-based standard.” [Stewart, 4/18/1989 pdf file]

Entity Tags: Environmental Protection Agency

Timeline Tags: Environmental Impact of 9/11

NESHAP regulations require use of the transmission electron microscopy (TEM) method to determine whether asbestos-derived wastes are asbestos free: “Transmission electron microscopy (TEM) shall be used to analyze the output material for the presence of asbestos.” In order to be considered “asbestos-free,” TEM results must indicate that the waste contains no asbestos. [US Code, Vol. 40, sec. 61.155] The TEM method is far superior to polarized light microscopy (PLM) testing, a less expensive method that is often used to test for the presence of asbestos in bulk building material. The PLM method is limited by relatively weak magnification (100-400x) and it is sometimes unable to distinguish asbestos material from other materials like tar and petroleum binding components that may also be present in the building material. As a result of these deficiencies, the PLM method cannot reliably detect asbestos at concentrations of less than 1 percent and it is incapable of detecting asbestos fibers that are less than .25 micrometers in width. [Jenkins, 3/11/2002 pdf file] TEM uses 20,000X or greater magnifications as well as powerful chemical (EDXA) and mineralogical (SAEDP) tools. Not only can TEM differentiate asbestos from non-asbestos fibers, but it can also distinguish one species of asbestos from another. [International Asbestos Testing Lab, 1/12/2006]

Timeline Tags: Environmental Impact of 9/11

The EPA issues a pamphlet answering common questions on the Asbestos NESHAP regulations (see April 18, 1989). One question asks: “Is there a numeric emission limit for the release of asbestos fibers during renovations or demolitions in the asbestos NESHAP regulation?” The EPA answers that although there is no numeric emission limit, NESHAP “does specify zero visible emissions to the outside air from activity relating to the transport and disposal of asbestos waste.” In other words, if any emissions are visible during transport or disposal, the level of asbestos is unsafe. [Environmental Protection Agency, 12/1990]

Entity Tags: Environmental Protection Agency

Timeline Tags: Environmental Impact of 9/11

A study commissioned by the EPA, “Evaluation of Three Cleaning Methods for Removing Asbestos from Carpet,” finds that available methods of asbestos removal from carpets and upholstery are incapable of effectively removing the fibers. “The wet cleaning method reduced the level of asbestos contamination in the carpet by approximately 60 percent, whereas neither dry cleaning method had any notable effect on the asbestos level,” the report says. [Environmental Protection Agency, 1993; Jenkins, 7/4/2003 pdf file]

Timeline Tags: Environmental Impact of 9/11

The World Trade Center twin towers collapse—the south tower at 9:59 a.m. and the north tower half an hour later at 10:28 a.m. [CNN, 9/12/2001; New York Times, 9/12/2001; New York Times, 9/12/2001; Washington Post, 9/12/2001; MSNBC, 9/22/2001; Associated Press, 8/21/2002] The collapses create huge dust clouds that roll through the streets of Lower Manhattan, breaking windows and forcing dust and debris into the interior of surrounding buildings.
Composition of dust - Chemicals and materials present in the billowing clouds include pulverized plaster, paint, foam, glass fibers and fragments, fiberglass, cement, vermiculite (used as a fire retardant instead of asbestos), chrysotile asbestos, polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls, polychlorinated dibenzodioxins, polychlorinated dibenzofurans, pesticides, phthalate esters, brominated diphenyl ethers, cotton fibers and lint, tarry and charred wood, soot, rubber, paper and plastic. [Allergy, Asthma & Immunology Online, 9/15/2001; CNN, 11/4/2001; Lioy et al., 7/2002; US Geological Survey, 10/2002 pdf file] The dust has an extremely high pH. [US Geological Survey, 11/27/2001; St. Louis Post-Dispatch, 2/10/2002]
Distribution of dust and debris - The debris will be distributed very unevenly throughout the city because of their varying weights. Dusts containing relatively heavy components, such as pulverized concrete and glass, will settle near the World Trade Center, whereas dust containing lighter components, like asbestos, will fall to the ground in greater relative concentrations at a further distance. Heavy metals—including zinc, strontium, lead and aluminum—will also be deposited a relatively large distance away from the disaster site. [Lioy et al., 7/2002; US Geological Survey, 10/2002 pdf file; Jenkins, 7/4/2003 pdf file]
Composition of smoke/debris plume - Combustible materials buried in the rubble of the towers provides fuel for a fire that will burn until December. Many of the materials are made of substances that when burned release highly toxic fumes. According to Thomas Cahill, a professor of physics and engineering, “The debris pile acted like a chemical factory. It cooked together the components and the buildings and their contents, including enormous numbers of computers, and gave off gases of toxic metals, acids, and organics for at least six weeks.” [BBC, 9/10/2003; Reuters, 9/11/2003]
bullet The two towers contained as many as 50,000 personal computers, each containing small amounts of mercury and about 4 lbs of lead. The towers also contained roughly 300 mainframe computers. [Nordgren, Goldstein, and Izeman, 2/2002 pdf file; Kupferman, 2003 pdf file]
bullet Thousands of fluorescent lamps in the buildings contained mercury. [Nordgren, Goldstein, and Izeman, 2/2002 pdf file; Kupferman, 2003 pdf file]
bullet Thousands of chairs and other office furniture contained chemicals like polybrominated diphenyl ethers, which pose dangers similar to PCBs. [Nordgren, Goldstein, and Izeman, 2/2002 pdf file]
bullet Several of the WTC’s tenants are known to have had toxic materials on site. For example, there was a Secret Service shooting range that kept millions of rounds of lead ammunition on hand. And a US Customs lab had in its inventory thousands of pounds of arsenic, lead, mercury, chromium, and other toxic substances. [Kupferman, 2003 pdf file]
bullet Other products in the buildings included synthetic fabrics, plastics, laminates, the di-electric fluids that encase electrical cables, capacitors, electrical cable insulation and transformers. The toxins resulting from the combustion of these materials include toxic lead, volatile organic compounds, dioxins (see December 27, 2002), mercury, nickel, vandium, sulphur, PAHs, PCBs and furans. [Nordgren, Goldstein, and Izeman, 2/2002 pdf file]
Distribution of smoke/debris plume - The aerosol plume will move from the WTC site in Lower Manhattan directly over Brooklyn where it will drop much of its toxic debris, contaminating the neighborhoods of Brooklyn Heights, DUMBO (Down Under the Manhattan Bridge Overpass), Cobble Hill, Boerum Hill, Park Slope and beyond. New York City Council member David Yassky, who is in Brooklyn campaigning on this day, will later recount in an interview with Newsday, “There was a film of dust on everything—on cars, stores, everywhere in Brooklyn Heights. If you were there, as I was, you saw several hours of debris rain down on your neighborhood.” [Newsday, 8/23/2002; Newsday, 9/30/2002]

Timeline Tags: Environmental Impact of 9/11

A dust sample is taken by EPA employees as they flee the collapsing buildings. The samples are later tested and found to contain an asbestos level of 4.5 percent. [Newsweek, 9/14/2001; Star Tribune (Minneapolis), 9/14/2001]

Entity Tags: Environmental Protection Agency

Timeline Tags: Environmental Impact of 9/11

The City of New York samples air at Centre and Chambers St. (7 blocks Northeast of Ground Zero perimeter, east of Broadway) and Spruce and Gold St. (7 to 8 blocks Northeast of Ground Zero perimeter, east of Broadway). Both of these sites are upwind from the World Trade Center disaster site. TEM tests reveal that these air samples have high levels of asbestos fibers suspended in the air—123.73 s/mm2 at Centre and Chambers St., and 157.48 s/mm2 at Spruce and Gold St. [Environmental Protection Agency, 7/15/2004 pdf file] Neither the City of New York nor the EPA will warn residents about these alarming asbestos levels. When the city publishes results of its polarized light microscopy (PLM) tests on October 24 (see October 24, 2001), it does not include these sampling results, or even mention that tests were performed at this location. Similarly, when it publishes the results of the transmission electron microscopy (TEM) tests on its website in early 2002 (see Early 2002), this data is again left out. However, this data is given to the State of New York on November 13 (see November 13, 2001). Cate Jenkins, a senior chemist in the EPA’s Hazardous Waste Identification Division, will later suggest that the omission was intentional in order to obscure the fact that contamination was occurring considerably north of Ground Zero. [Environmental Protection Agency, 7/15/2004 pdf file] The City of New York will not return to these locations to conduct additional monitoring so there is no additional data on contamination in these locations. [Environmental Protection Agency, 7/15/2004 pdf file]

Timeline Tags: Environmental Impact of 9/11

EPA Administrator Christie Whitman announces that the EPA is monitoring levels of airborne contaminants in and around the area of Manhattan. She says that samples so far are “reassuring about potential exposure of rescue crews and the public to environmental contaminants.” The tests “found either no asbestos or very low levels of asbestos.” In Brooklyn, which is directly in the WTC smoke plume’s path (see 9:59 a.m. September 11, 2001 and 10:28 a.m. September 11, 2001), she says that “levels of lead, asbestos and volatile organic compounds in air samples… were not detectable or not of concern.” [Environmental Protection Agency, 9/13/2001] However, her statements contradict results from transmission electron microscopy (TEM) tests that were conducted the previous day (see (September 12, 2001)).

Entity Tags: Christine Todd Whitman, Environmental Protection Agency

Timeline Tags: Environmental Impact of 9/11

EPA and OSHA announce that the majority of air and dust samples monitored in New York’s financial district “do not indicate levels of concern for asbestos” and that ambient air quality “meets OSHA standards.” The two agencies also say that OSHA has new data indicating that indoor air quality in downtown buildings “will meet standards.” The agencies’ conclusions are based on samples taken on September 13. “OSHA staff walked through New York’s Financial District… wearing personal air monitors and collected data on potential asbestos exposure levels. All but two samples contained no asbestos.… Air samples taken… inside buildings in New York’s financial district were negative for asbestos. Debris samples collected outside buildings on cars and other surfaces contained small percentages of asbestos, ranging from 2.1 to 3.3—slightly above the 1 percent trigger for defining asbestos material.” [Occupational Safety and Health Administration, 9/14/2001] But the EPA improperly implies that the one percent level is a safety benchmark (see (September 12, 2001)), even though it had previously acknowledged that airborne asbestos particles are unsafe at any level (see September 14, 2001). Furthermore, its test results are not accurate, as they are based on the outdated polarized light microscopy (PLM) testing method, which is incapable of identifying fine fibers and which cannot reliably detect asbestos when it is present in concentrations below one percent (see November 20, 1990).

Entity Tags: Occupational Safety and Health Administration (OSHA), Environmental Protection Agency

Timeline Tags: Environmental Impact of 9/11

EPA administrator Christine Todd Whitman says with regard to Manhattan’s air quality, “[T]here is no reason for concern.” She says that her agency is regularly sampling airborne particles and that findings indicate that most locations have an asbestos level of less than one percent—the amount above which the EPA considers a material to be “asbestos-containing”—but notes that the highest recorded reading so far was 4.5 percent (see (Between 10:00 a.m. and 11:00 a.m. September 11, 2001)). [Newsday, 9/16/2001] But the EPA is wrong to use the one percent level as if it were a safety benchmark (see (September 12, 2001)). Furthermore, its test results are not accurate, as they are based on the outdated polarized light microscopy (PLM) testing method which is incapable of identifying fine fibers and which cannot reliably detect asbestos when it is present in concentrations below one percent (see November 20, 1990).

Entity Tags: Christine Todd Whitman, Environmental Protection Agency

Timeline Tags: Environmental Impact of 9/11

The New York City Department of Environmental Protection (DEP) issues a public notice advising building owners and building maintenance managers located south of 14th Street to replace filters in air circulation systems and to run their systems on the recirculation mode until fires at the World Trade Center are extinguished. The agency also recommends that owners and managers contract professionals to test their buildings for the presence of asbestos and other hazardous materials prior to beginning cleanup by maintenance employees. If the presence of harmful contaminants are detected, they must telephone the DEP, where a staff employee will review each case and provide verbal approval. [New York City Department of Health, 9/16/2001 pdf file; Jenkins, 7/4/2003 pdf file]

Entity Tags: New York City Department of Environmental Protection

Timeline Tags: Environmental Impact of 9/11

The New York City Department of Health (DOH) issues recommendations for people reoccupying commercial buildings and residences. [New York City Department of Health, 9/17/2001]
Recommendations -
bullet The NYC DOH advises residents not return to apartments or workplaces south of Warren Street, west of Broadway, and north of Exchange Street, until the buildings have been approved to resume tenancy by building management.
bullet The DOH recommends that people wear dust masks upon re-entering their indoor areas. After indoor spaces have been cleaned as per instructions, it should not be necessary to wear dust masks.
bullet The advisory recommends that residents and people working downtown clean homes and offices using “a wet rag or wet mop.”
bullet Additional suggestions include shampooing and vacuuming carpets and upholstery with a HEPA vacuum or a normal vacuum fitted with a HEPA filter. The recommendation is made despite two studies completed for the EPA in 1993 demonstrating that HEPA vacuums do not effectively remove asbestos from carpets and upholstery (see 1993) and that vacuuming actually increases asbestos levels in the air during use (see 1993).
bullet The advisory recommends that residents filter the air in their homes with HEPA air purifiers.
bullet NYC DOH instructs residents to “wash heavily soiled or dusty clothing or linens twice” and remove “lint from washing machines and filters in the dryers with each laundry load.”
bullet The recommendations say that if the “apartment is very dusty,” curtains should be washed or HEPA vacuumed. “If curtains need to be taken down, take them down slowly to keep dust from circulating in the air,” it adds.
bullet Residents are advised to bathe pets “with running water from a hose or faucet.” The advisory adds that “their paws should be wiped to avoid tracking dust inside the home.”
bullet The advisory also states to “[k]eep outdoor dust from entering the home” by keeping the “windows closed” and setting the “conditioner to re-circulate air (closed vents).”
bullet The advisory repeats earlier assertions that air monitoring indicates levels of airborne asbestos fibers detected in outside air does not pose a significant threat to human health. “Based on the asbestos test results received thus far, there are no significant health risks to occupants in the affected area or to the general public,” the agency claims. The DOH’s recommendations are criticized by industrial hygienists and other experts. The advisory is criticized for failing to mention that the “dust” inside these homes could possibly contain asbestos and other toxic substances and for neglecting to inform people that stringent national statutes regulate asbestos removal, requiring professional abatement of materials or dust that contain asbestos or other hazardous substances. US statutory code does not permit unlicensed individuals or contractors, much less residents, to perform asbestos removal. [New York City Department of Health, 9/16/2001 pdf file; New York Daily News, 11/20/2001 pdf file; Wall Street Journal, 5/9/2002 pdf file; Jenkins, 7/4/2003 pdf file] In spite of these problems, the EPA website will link to the notice. [St. Louis Post-Dispatch, 2/10/2002; Jenkins, 7/4/2003 pdf file] and refer people to it who email the agency with questions about the safety of indoor air (see After November 1, 2001) (see After November 10, 2001). Some people, however, never even learn of this advisory and—after hearing repeated assurances from officials about safe environmental conditions—clean their indoor spaces as they otherwise would under normal conditions. [Office of US Congressman Jerrold Nadler, 4/12/2002 pdf file] Residents who do hire professional cleaners will find that their homes are still not safe. In November, American Medical News reports numerous doctors in NYC are seeing patients with respiratory conditions. “Their apartments were covered in dust, and have since been professionally cleaned” Ira Finegold, MD, chief of allergy at St. Luke’s-Roosevelt Hospital Center, will say. “But they return, and after 20 minutes, they’re developing a raspy cough.” [American Medical News, 11/26/2001]

Entity Tags: New York City Department of Health, Ira Finegold

Timeline Tags: Environmental Impact of 9/11

EPA air monitors detect sulfur dioxide levels that are so elevated that “according to one industrial hygienist, they exceeded the EPA’s standard for a classification of ‘hazardous,’” the New York Daily News later reports. The EPA does not volunteer this information to the public. Rather the data is discovered in internal EPA documents that are obtained by the New York Environmental Law and Justice Project through the Freedom of Information Act in October (see October 19, 2001). [New York Daily News, 10/26/2001; Thomas Crosbie Media, 10/26/2001]

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

Timeline Tags: Environmental Impact of 9/11

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

Timeline Tags: Environmental Impact of 9/11

EPA Administrator Christie Whitman assures New Yorkers that environmental conditions in Manhattan—both inside and outside—are safe, and provides a summary of the tests that have so far been performed on the city’s air and drinking water.
Water - Whitman says: “As we continue to monitor drinking water in and around New York City, and as EPA gets more comprehensive analysis of this monitoring data, I am relieved to be able to reassure New York and New Jersey residents that a host of potential contaminants are either not detectable or are below the Agency’s concern levels. Results we have just received on drinking water quality show that not only is asbestos not detectable, but also we can not detect any bacterial contamination, PCBs or pesticides.” She does say however that “following one rainstorm with particularly high runoff, we did have one isolated detection of slightly elevated levels of PCBs (see September 14, 2001).”
Outdoor air - Whitman says that outdoor air sampling does not indicate the existence of significant public health risks. This claim is based on results obtained using the outdated polarized light microscopy (PLM) testing method (see September 12, 2001) which is incapable of identifying ultra-fine fibers and which cannot reliably detect asbestos when present in concentrations below one percent (see November 20, 1990). Even though Whitman denies a significant risk to public health, she does say “seven samples taken at or near Ground Zero have had marginally higher levels of asbestos that exceed EPA’s level of concern,” and that her agency has “done a total of 101 dust samples, of which 37 were slightly over the one percent asbestos.” Whitman does not mention that the EPA’s “level of concern” is not a safety benchmark (see (September 12, 2001)) but rather the detection limit of the polarized light microscopy (PLM) testing method (see November 20, 1990).
Indoor air - Whitman claims, “New Yorkers and New Jerseyans need not be concerned about environmental issues as they return to their homes and workplaces.” But the EPA has no data indicating that indoor air is actually safe. The only indoor tests that have been conducted by the EPA were in the EPA’s Region 2 offices located in the Federal Building and a few neighboring buildings—and the results from several of these tests were positive for chrysotile asbestos (see September 13, 2001-September 19, 2001). [Environmental Protection Agency, 9/21/2001; Office of US Congressman Jerrold Nadler, 4/12/2002 pdf file]

Entity Tags: Environmental Protection Agency, Christine Todd Whitman

Timeline Tags: Environmental Impact of 9/11

The New York City Department of Health issues a press release reiterating earlier public statements regarding the air quality in Manhattan and announces that the agency has distributed over 50,000 copies of the New York City Department of Health’s recommendations for tenant re-occupancy (see September 17, 2001). The press release quotes New York City Health Commissioner Neal L. Cohen, MD, who asserts that “there are no significant adverse health risks to the general public….” and “all residents and business owners should check with their building managers or owners to make sure that their buildings are safe, and have been certified for re-occupancy.” Residents and business owners who are permitted to return to their buildings “should follow Health Department recommendations to minimize exposure to dust and other particulate matter that may cause throat and eye irritation,” he says. The statement goes on to say that only people who live or work “within the general vicinity of the blast zone… and who have been approved to resume tenancy are advised to wear a dust mask while outside. Dust masks are not necessary for residents in other areas.” Tenants following the DEP’s cleanup guidelines should find it “unnecessary to wear a mask while inside buildings,” the statement says. [New York City Department of Health, 9/22/2001]

Entity Tags: New York City Department of Health, Neal L. Cohen, M.D.

Timeline Tags: Environmental Impact of 9/11

EPA air monitors at Barclay and West Sts., Church and Dey Sts. and at Ground Zero detect lead levels three times higher than the EPA standard allows. [New York Daily News, 10/26/2001]

Entity Tags: Environmental Protection Agency

Timeline Tags: Environmental Impact of 9/11

Three of 10 samples taken by the EPA near the attack site indicate elevated levels of lead. [Washington Post, 1/8/2002]

Timeline Tags: Environmental Impact of 9/11

Borough of Manhattan Community College, CUNY, (BMCC), located four blocks from the World Trade Center site, reopens its campus. [Guardian, 10/4/2001; Village Voice, 12/19/2005] The school is the only school that was damaged as a result of the attacks on the World Trade Center. When 7 World Trade Center collapsed, the south face of the recently renovated Fiterman Hall was destroyed. The 15-story building housed 40 classrooms, computer labs, and three floors that the college rented to private companies. The remaining portion of the school—designed to hold no more than 8,000 students—must now accommodate some 17,000. The attacks have put a tremendous strain on BMCC’s finances. The damage is estimated to be about $11.5 million. Additionally, the school will lose about $1.1 million in lost lease revenue. The school’s financial problems are compounded by the fact that $9.7 million is set to be cut from next year’s CUNY budget. [Village Voice, 12/19/2005] Shortly after returning to school, students and teachers will complain about ailments such as acquired asthma, upper-respiratory disease, chronic headaches, and itchy eyes and skin believed to be caused by air contamination that resulted from the WTC collapse and made worse by the continuing fire plume. Despite the college’s long list of problems, the media and city government will pay little attention to the school, whose student body is largely low-income people of color. Instead, the focus will be on Stuyvesant High School, an elite public school, which suffered no direct damages on September 11. By December, more than $1 million will be spent on environmental cleanup at Stuyvesant compared to only $75,000 at BMCC. [Village Voice, 12/19/2005]

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

Timeline Tags: Environmental Impact of 9/11

EPA monitors record benzene levels from three spots around Ground Zero that are 42, 31 and 16 times higher than OSHA standards permit. [New York Daily News, 10/26/2001]

Entity Tags: Environmental Protection Agency

Timeline Tags: Environmental Impact of 9/11

The EPA publishes a summary of results from the air-monitoring program it implemented shortly after the 9/11 attacks. The summary covers the period between September 11 and September 30.
bullet “Out of a total of 442 air samples EPA has taken at Ground Zero and in the immediate area, only 27 had levels of asbestos above the standard EPA uses to determine if children can re-enter a school after asbestos has been removed—a stringent standard based upon assumptions of long term exposure. OSHA has analyzed 67 air samples from the same area, and all were below the OSHA workplace standard for asbestos.”
bullet “All fifty-four air samples from EPA’s four monitors in New Jersey found no [asbestos] levels above EPA’s standard. Another 162 samples were taken from EPA’s monitors at the Fresh Kills landfill in Staten Island, where debris from the World Trade Center is being taken; only two exceeded EPA’s standard.”
bullet “Of 177 bulk dust and debris samples collected by EPA and OSHA and analyzed for asbestos, 48 had levels over 1 percent, the level EPA and OSHA use to define asbestos-containing material. Although early samples from water runoff into the Hudson and East Rivers showed some elevated levels of polychlorinated biphenyls (PCBs), dioxin, asbestos and metals, recent results find non-detectable levels of asbestos, and PCBs and polycyclic aromatic hydrocarbons (PAHs) and metals below the level of concern.”
bullet EPA and OSHA samples from Ground Zero and surrounding areas did not contain levels of lead, iron oxide, zinc oxide, copper or beryllium exceeding OSHA limits.
bullet The EPA “has measured dioxin levels in and around the World Trade Center site that were at or above EPA’s level for taking action.” However, the risk from dioxin is based on long term exposure, EPA claims, adding that the agency and OSHA “expect levels to diminish as soon as the remaining fires on the site are extinguished.” The exact figures of the dioxin levels, however, are startling. More than a year later, the EPA will publish a report which includes the raw dioxin data for this period indicating that dioxins levels on some days were almost six times the highest dioxin level ever recorded in the US (see December 27, 2002).
bullet “Of the 36 samples of volatile organic compounds (VOCs) taken around Ground Zero to assist response workers in determining the appropriate level of respiratory protection, several samples have been above the OSHA standard for workers. None presented an immediate risk to workers, and the levels are expected to decline when the fires are out.” [Environmental Protection Agency, 10/3/2001]

Entity Tags: Environmental Protection Agency

Timeline Tags: Environmental Impact of 9/11

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

Timeline Tags: Environmental Impact of 9/11

The New York Environmental Law and Justice Project obtains internal EPA documents containing data that the agency did not include in the monitoring results it posted on its website on October 3 (see October 3, 2001). The documents, which include hundreds of pages of daily monitoring reports, reveal that “[d]ioxins, PCBs, benzene, lead and chromium are among the toxic substances detected in the air and soil around the WTC site by Environmental Protection Agency [monitoring] equipment—sometimes at levels far exceeding federal levels.” For example, one test indicated water being discharged into the Hudson River contained chromium, copper, lead and zinc at levels “elevated to several orders of magnitude above ambient water-quality criteria for most metals.” Also included is disturbing data about the air quality. “On numerous days, sulfur dioxide readings in the air at a half-dozen sites in Lower Manhattan have been far higher than the EPA’s ambient air quality standards,” one document reveals. [New York Daily News, 10/26/2001; Thomas Crosbie Media, 10/26/2001; Associated Press, 10/27/2001; Kupferman, 2003 pdf file]

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

Timeline Tags: Environmental Impact of 9/11

The City of New York posts test results for asbestos in ambient outdoor air using the polarized light microscopy (PLM) test method on the NYC Department of Environmental Protection website. [Environmental Protection Agency, 7/15/2004 pdf file] New York City DEP test results based on the transmission electron microscopy (TEM) testing method are not posted until early 2002 (see Early 2002).

Entity Tags: Environmental Protection Agency

Timeline Tags: Environmental Impact of 9/11

Several government experts testify at a New York City Council meeting on environmental conditions following the collapse of the World Trade Center towers. [New York Daily News, 11/1/2001] Kathleen Callahan, deputy regional director of the Environmental Protection Agency (EPA), insists that New Yorkers living and working near the World Trade Center site are not in danger. “The vast majority of our tests find levels of these contaminants pose no significant long term health risks to residents, business employees and visitors beyond Ground Zero,” she says, repeating what earlier EPA statements have asserted. Downplaying the danger of those areas where higher asbestos levels have been found, she states—falsely (see April 18, 1989) (see October 3, 2001-March 1, 2004) —that “EPA and Occupational Safety and Health Administration standards are set many times below the level at which you would expect health impacts.” She advises New Yorkers who live or work in the affected areas to “follow the recommendations of the New York City Departments of Health and Environmental Protection on how to clean up properly (see September 17, 2001).” [Environmental Protection Agency, 11/1/2001] Another expert, Dr. Jessica Leighton, assistant city health commissioner for environmental risk assessment, similarly states that people living and working in Lower Manhattan have little to worry about. She says in response to a question whether or not “people are safe at the present level” of contamination: “As far as the science has shown us right now, that is absolutely correct.” Like Callahan, she claims that EPA standards are overly protective. “The standards or tolerance levels that are being used are very conservative,” she claims. “For example, for asbestos, we are using the standard that is used for indoor air quality for reentry into a school after asbestos removal, which is the most stringent standard, as the tolerance level or standard for outdoor air quality in the residential areas. This is also true for other substances, such as dioxins, identified at the perimeter of the site…. Moreover, these standards have been designed to include many safety factors so that acceptable levels of exposure are far below the levels at which health effects are expected to occur.” [New York City Department of Health, 11/1/2001] Joel Kupferman, executive director of the New York Environmental Law and Justice Project, questions the accuracy of Leighton’s and Callahan’s statements and accuses them of withholding some test results. [New York Daily News, 11/1/2001] Kathryn Freed, a New York City Council Member who represents Lower Manhattan, said she was not convinced by agency assurances, noting that firemen are already showing symptoms of emphysema, a terminal disease for which there is no cure. “Just because it doesn’t reach a certain level is really irrelevant when people are sick,” says Marc Ameruso, a member of the area’s community board. [New York Daily News, 11/1/2001]

Entity Tags: Kathryn Freed, Joel R Kupferman, Kathleen Callahan, Jessica Leighton, PhD.

Timeline Tags: Environmental Impact of 9/11

The EPA uses a form letter to respond to inquiries from people who live and work in Manhattan asking how they should clean their interior spaces. The letter instructs them to follow the procedures outlined in the New York Department of Health’s September 17 advisory (see September 17, 2001). “The EPA does not have jurisdiction or oversight of indoor air quality or indoor cleanups,” the letter explains. “New York City (NYC) has the primary authority and responsibility for reoccupancy of buildings and health issues. Since you work very close to the WTC it is important that the recommendations of the New York City Department of Health (NYCDOH) and the New York City Department of Environmental Protection (NYCDEP) on how to clean up be followed…. The NYCDOH fact sheet on the internet (http://www.nyc.gov/html/doh/html/alerts/wtc3.shtml) contains recommendations for people reoccupying commercial buildings and residents re-entering their homes. Should the need arise to investigate the requirements for remediation of your residence, the NYCDEP has compiled a list of asbestos investigators, remediation contractors and air monitoring firms.” [Jenkins, 7/4/2003 pdf file]

Timeline Tags: Environmental Impact of 9/11

EPA Region 2 responds to an inquiry from a woman concerned about the asbestos levels in the building where her husband works, which is across the street from the World Trade Center site. The EPA informs her that “that the owner/manager of the building [should] follow the cleanup guidelines in the September 16 City of New York Public Notice (see September 16, 2001)…. In addition, the New York City Department of Health has a fact sheet (see September 17, 2001) on the internet… that contains recommendations for people re-occupying commercial buildings and residents re-entering their homes.” [Jenkins, 7/4/2003 pdf file]

Entity Tags: Environmental Protection Agency

Timeline Tags: Environmental Impact of 9/11

The City of New York supplies the New York State Department of Environmental Conservation (DEC) with the original version of its transmission electron microscopy (TEM) test results on air asbestos levels. [Environmental Protection Agency, 7/15/2004 pdf file] A censored version of the data is later released to the public in early 2002 (see Early 2002).

Entity Tags: New York Department of Environmental Conservation (DEC)

Timeline Tags: Environmental Impact of 9/11

Kathleen Callahan, deputy regional director of the US Environmental Protection Agency, testifies before the joint New York State Assembly Committees on Environmental Conservation, Health, and Labor. She reiterates past EPA assertions that WTC contaminants pose no long term risks to local residents. “We’ve tested for the presence of pollutants such as asbestos, fine particulate matter, lead, volatile organic compounds, dioxin, benzene, metals, PCBs and other chemicals and substances that could pose a threat to the public and workers at the site,” she says. “Fortunately, the vast majority of our tests find levels of these contaminants that pose no significant long term health risks to residents, business employees and visitors beyond Ground Zero. And despite recent press accounts which suggest otherwise, these findings have not changed. In fact, environmental conditions off the site have improved in recent weeks.” Callahan also says that people concerned about contamination in their homes “should follow the recommendations of the New York City Departments of Health and Environmental Protection on how to clean up properly” (see September 17, 2001). [Environmental Protection Agency, 11/1/2001]

Entity Tags: Environmental Protection Agency, Kathleen Callahan

Timeline Tags: Environmental Impact of 9/11

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)

Timeline Tags: Environmental Impact of 9/11

R. Radhakrishnan, Director of the Asbestos Control Program in the New York City Department of Environmental Protection (DEP), sends letters to owners of buildings located within the zone of WTC contamination requesting “copies of the environmental hazard assessments including bulk sampling results and air monitoring results and a summary of cleanup activities” at their buildings within 5 days. The letter recalls that they had been advised in September (see September 16, 2001) to have their buildings professionally tested for asbestos and other contaminants. If tests proved positive for any dangerous contaminants, they were to have had them abated professionally. The letter also says that building owners “are responsible for the cleaning of building exteriors, grounds, and common areas.” The letter contains no reference to the federal regulations that govern asbestos and other hazardous materials. [Jenkins, 7/4/2003 pdf file] The DEP makes no effort to enforce compliance with this request. By September 2002, only 354 of the roughly 1900 buildings that were required to provide the agency with data and documentation will have responded to Radhakrishnan’s request. Of those, 31 buildings will say they found dangerous levels of asbestos requiring professional abatement. Others will provide records that are incomplete or inadequate. The DEP does not issue a single citation for building owners or managers that do not respond. [Office of Representative Jerrold Nadler, 2/10/2003; New York Daily News, 9/11/2003]

Entity Tags: Radhakrishnan

Timeline Tags: Environmental Impact of 9/11

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

Timeline Tags: Environmental Impact of 9/11

The Agency for Toxic Substances and Disease Registry (ATSDR) releases its “Report on Residential Air and Dust Sampling in Lower Manhattan,” which explains the agency found “low” levels of asbestos in 17.5 percent of the residential units sampled, 19.2 percent of the common area samples and 33 percent of the outdoor areas samples. But the study says there were extremely high levels of fibrous glass, which ranged from 2 to 15 percent in almost half the residential areas sampled and 64 percent of the outdoor samples. The ATSDR recommends “that people continue to conduct frequent cleaning with HEPA vacuums and damp cloths/mops to reduce the potential for exposure in accordance with NYC Department of Health (NYC DEP) guidance (see September 17, 2001).” But the NYC DEP’s instructions have been highly criticized (see September 17, 2001) (see September 22, 2001) and its recommendation to use a HEPA vacuum to remove asbestos contradicts previous EPA commissioned studies (see 1993) (see 1993). [Agency for Toxic Substances and Disease Registry, 5/7/2002]

Entity Tags: Agency for Toxic Substances and Disease Registry (ATSDR)

Timeline Tags: Environmental Impact of 9/11

The EPA Office of Research and Development releases a comprehensive study on pollution in and around Ground Zero titled, “Exposure and Human Health Evaluation of Airborne Pollution from the World Trade Center Disaster.” The study concludes that the majority of residents and employees who returned to homes and offices after September 17 were “unlikely to suffer short-term or adverse health effects” from contaminants in the air. However the study warns that the thousands of people who were caught in the huge billowing dust clouds immediately after the towers collapsed, or who inhaled the air near the WTC site a few days after the attack, were “at risk for immediate acute [and possibly chronic] respiratory and other types of symptoms.” On page 77 of the report, the authors reveal that recorded dioxin levels from September through November were extremely high. For example, between October 12 and 29, a monitoring station on Park Row near City Hall Park recorded dioxin levels that averaged 5.6 parts per trillion/per cubic meter of air. This level is almost six times greater than the highest dioxin level ever recorded in the US, the report notes. The heaviest concentrations of dioxins were found at Ground Zero where concentrations “ranging from about 10 to 170” parts per trillion were recorded during the period between September 23 through November 21. Again the report observes that this figure is “between 100 and 1,500 times higher than typically found in urban air.” David Carpenter, MD, a researcher at State University of New York, tells the New York Daily News, “Those air levels are outrageous. There’s a very significant health danger here.” [New York Daily News, 12/31/2002]

Entity Tags: Environmental Protection Agency

Timeline Tags: Environmental Impact of 9/11

The Stone Street apartment of Bob and Diane Van Dyke is cleaned as part of the EPA’s volunteer residential cleaning program (see September 17, 2001). “Seven workers spent four hours on the 2,200 square foot space,” Salon magazine will report. “None of them wore the waist-level air monitors [EPA spokesperson Mary] Mears insisted all crews would have as a safety precaution. No one wore facemasks, respirators, or even plastic gloves, even though the site supervisor had determined that all of the Van Dykes’ upholstered furniture, mattresses and bedding were contaminated and should be thrown out. Hot water was used to remove dust from ventilation grates; Murphy’s Oil was spread on the floors. The carpets, which remained, were not vacuumed using the wet methods prescribed on the EPA’s Web site. Neither were the drapes. HEPA vacuums were used, but when a hose abruptly popped off the machine and dust spewed onto the freshly vacuumed floor, the hose was simply reattached and the floor was not re-vacuumed. The cleaning process appeared no different from a standard housecleaning.” [Salon, 8/15/2003]

Timeline Tags: Environmental Impact of 9/11

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

Timeline Tags: Environmental Impact of 9/11

Ordering 

Time period


Email Updates

Receive weekly email updates summarizing what contributors have added to the History Commons database

 
Donate

Developing and maintaining this site is very labor intensive. If you find it useful, please give us a hand and donate what you can.
Donate Now

Volunteer

If you would like to help us with this effort, please contact us. We need help with programming (Java, JDO, mysql, and xml), design, networking, and publicity. If you want to contribute information to this site, click the register link at the top of the page, and start contributing.
Contact Us

Creative Commons License Except where otherwise noted, the textual content of each timeline is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike