Archive for the ‘Mold’ Category

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Sick Housing

February 5, 2011

Sweden has its own sickness

By Ritt Goldstein
DALARNA, Sweden – As shock waves continue to emanate from Stockholm’s recent terror bombing, such an event appearing all but unthinkable given the Sweden most people perceive, ongoing revelations highlight that Sweden has had some disturbing changes. In many ways, today’s Sweden faces the same problems as other countries, including corruption and the sometimes nightmarish impact of it.

Emphasizing Swedish corruption’s gravity, the vast bulk of cases that have come to light are occurring in municipal housing companies and the construction industry, with the substantive “human costs” of these scandals only beginning to be appreciated. So-called “sick houses”, the significant health issues they’ve meant, are a recognized problem in Sweden, with the ongoing scandals now suggesting why.

“This is something that really needs to be looked upon and looked into,” said Justice Chancellor Anna Skarhed of the scandals’ health impact, sternly observing for Asia Times Online that “there is even more of this [the effects of corruption] than we’ve already seen, which is quite enough, and too much as it is.”

China’s infamous melamine scandal is said to have affected 300,000 people, or about .024% of its populace. But over 10% of Sweden’s people are suffering varying degrees of ill health effects from badly constructed or maintained housing, with a not insignificant number suffering quite severely.

In 2008, Scandinavia’s largest paper, Aftonbladet, noted, “In a new study from [Sweden's] Umea University, it was found that 45% of those affected by sick buildings – and who received medical treatment at a hospital clinic – are unable to work. Of these, 20% receive a disability pension, and 25% are on sick leave.”

For much of its recent history, Sweden has represented what many consider the embodiment of governmental integrity and efficiency, with typical Swedes following rules so closely that virtually none even “jaywalk”. Decades of cradle-to-grave government benefits have created a deep-felt faith in the authorities, present events providing a decidedly rude awakening for most, though not all.

Leif Kavestad – author of the Swedish book Sick Houses, building engineer, and a former environmental inspector who was personally decorated by the prior prime minister – has charged that “when residents complain about health hazards and health problems in municipal housing, it’s not uncommon for the municipality to hire ‘consultants’ that will declare the property safe.” Kavestad pointedly told ATol that “in legal disputes, the environmental agency always accepts the word of the municipality’s ‘bought’ consultants. Tenants which complain over sick buildings with health complaints are sometimes threatened – the parties together can act like a mafia against the tenants.”

In Sweden, municipal housing provides the majority of the country’s rental apartments, some being “high-end” properties.

“It’s a big problem, and it’s a big problem for the trust in the authorities and the trust in the kommun [municipality] … it has to be dealt with, and seriously,” said Gustav Gellerbrant , spokesperson and political advisor for Justice Minister Beatrice Ask, regarding the human consequences of housing corruption.

Over the past months, increasing numbers of Swedes are examining their surroundings through new eyes. “Bribes are more common than we thought”, “Bribery cases in many municipalities”, “Corruption and abuse of power in Swedish municipalities” – these headlines representing but a few of the recent months’ revelations. Law-enforcement authorities have seen a change.

Prosecutor Gunnar Stetler, director of the Swedish prosecution authority’s National Anti-Corruption Unit (Riksenheten mot korruption), described for ATol the current level of municipal corruption complaints to his office as “at least 50% higher” than the same period last year. A new investigative group within the National Police to investigate corruption – including cross-border questions and financial crime – is also now being worked on, Stetler emphasized, describing expectations that the yet ongoing discussions would be finalized “during December, or during January”.

Both Stetler and Justice Chancellor Skarhed are among a handful of key contributors to the new police group’s formation, Chancellor Skarhed noting “the information I have from the prosecutor’s office and the Riksenheten mot korruption strongly indicates that the resources the police have given to these [corruption] investigations have not been adequate for quite some time.” The chancellor expects the new group to be formed in January.

Adding another dimension to the corruption problem, in September three rights groups filed a criminal complaint against Saab, alleging bribery was involved in the sale of Swedish fighter aircraft to South Africa. Prosecutor Stetler describes the status of this case as under “active consideration”, a determination on the opening of a preliminary investigation yet to be forthcoming. But Stetler’s unit has been busy.

Corruption revelations began detonating in April, with an investigative TV program resembling a Swedish version of 60 Minutes entitled Uppdrag Granskning (UG), exploding municipal corruption onto the national agenda. Their report centered on “bribery and corruption in Gothenburg”, Sweden’s second-largest city, and today a place where all four of the city’s municipal housing companies have come under the National Anti-Corruption Unit’s investigation.

Following the UG reports, charges ranging from aggravated corruption and fraud to breach of trust and embezzlement have become among those being investigated. Individuals focused on include local officials, municipal company executives, and construction industry figures.

Drawing considerable outrage, funds earmarked for construction and renovation of municipal housing appear to have gone to luxurious additions to officials’ private homes. “If you are ‘well-connected’ locally … there might be people then who are prepared to ‘bend the rules’ to give you favors, and maybe they get favors back. And we know that this happens in municipalities,” said corruption expert and political scientist Staffan Andersson of Sweden’s Linne University, cutting to the issue of so-called local “strongmen”, an issue well publicized as a key corruption problem.

This autumn, Swedish National Television (SVT) aptly kicked off a new comedy series about an inept and corrupt municipal politician,Strong Man (“Starke man”), parodying the kinds of corrupt behaviors that have been making headlines.

Over the past 20 years, Sweden privatized increasingly large segments of its public sector, particularly in municipalities. It set up hybrid companies that were owned by municipalities but operated as semi-independent firms, firms with far looser controls than when their work was done as an official municipal organ. “We have been so focused on productivity, efficiency, and cost savings … but there’s also another side,” Andersson explained. He added that when it came to effective controls within these new entities, events have “not been running as quick as we have done with productivity”, questioning whether today’s controls fit “the kind of administration we had 20years ago”.

Illustrating his point, Andersson emphasized for ATol that “there are a lot of instances where … municipalities are actually carrying out authority in a way which is regarded as illegal by courts, administrative courts, but they actually do it anyway”. Paralleling this, an October SVT news report had earlier revealed how some municipal auditors whitewashed wrongdoing, then received legal immunity from the municipality for their actions, leaving no one legally culpable.

Pockets of widespread and deeply entrenched municipal problems have been increasingly seen.

In Falun, the municipal housing company, Kopparstaden, is particularly noteworthy, first making national headlines in 2009 with a story about its chief executive officer (CEO) and pornography. Following this, the CEO violated company rules by purchasing property for Kopparstaden’s new headquarters from a close friend.

The transaction was first stated as approximately 3 million Swedish kronor (US$440,000), then later “revised” to about five million. Subsequent research revealed that the “revision” was due to debt which was acquired by Kopparstaden with its property purchase, though, according to the City of Falun’s accounting firm, KPMG, apparently no documents were presented to Kopparstaden’s board regarding that debt.

Kopparstaden’s new headquarters eventually cost a third over budget, KPMG reporting that the firm’s internal controls “had not worked”, and that its CEO had wanted a 295,000 kronor tennis court at the new office. Subsequently, the CEO was quoted by a local paper as claiming KPMG was in error on its cost figures, that the new headquarters was in reality “great business“.

When contacted, Kopparstaden refused to be interviewed for this article.

Prosecutor Stetler noted that the KPMG report indicated Kopparstaden violations of “law or regulation”, but he added that under current Swedish law, it was necessary to prove “intent” in order for a prosecution to occur. Wrongdoing in itself is not actionable.

Andersson blamed weak municipal scrutiny and weak legal sanctions as key corruption problems.

Beyond financial issues, Kopparstaden has made headlines regarding tenant health problems, some health issues being severe, one even life-threatening. Notably, similar to its pronouncements on KPMG’s “error”, in court documents the firm describes an apartment the local environmental authority condemned as uninhabitable to be without any serious damage; though, substantive injuries to the tenant had resulted, and tests revealed the apartment had “unusually high” levels of toxic chemicals such as chloroform and benzene, plus a “powerfully elevated” mold level.

Notably, a report published by Swedish corruption researchers in November 2008, “Public Corruption in Swedish Municipalities – Trouble Looming on the Horizon?”, did warn of potential problems with the municipal hybrid firms.

In subsequently explaining how Sweden’s municipal corruption grew, one of the report’s authors, political scientist Gissur Erlingsson of Linkoping University, placed blame on both the creation of “fast and loose” municipal hybrids, and an erosion of whistleblower protections beginning in the mid-1990s, saying “people got more and more wary and afraid of losing their job”.

Examining another aspect of events, Dr Daniel Burston (PhD Psychology, PhD Social and Political Thought), chair of Pittsburgh’s Duquesne University psychology department, observed a culture of corruption always contains a large “group of passive and increasingly indifferent people who simply ‘go along’ with the status quo”. “They try to avoid losing what they have by not opposing the strongmen and their agents, and offering them bribes or ‘cover’, when necessary”, Burston outlined for ATol, adding that such conduct “becomes the ‘new normal’, and so routinized, in many ways, that it becomes completely unconscious – a tacitly accepted part of prevailing social and cultural expectations.”

In societies where those in authority are particularly respected, Burston observed that public opinion, combined with the phenomenon of “group think”, might well enable “corrupt leaders to gather the mantle of respectability around their shoulders, and then operate unhindered as ‘wolves in sheep’s clothing’.”

“Prosecution has preventative effects,” law professor Claes Sandgren of Stockholm University emphasized, “you don’t just prosecute to put just one individual in prison, you also prosecute to deter others.”

Ritt Goldstein is an investigative political journalist whose work has appeared widely, including in the US’s Christian Science Monitor, Spain’s El Mundo, Austria’s Wiener Zeitung and Australia’s Sydney Morning Herald, as well as with other significant members of the global media.

http://www.atimes.com/atimes/Front_Page/LL22Aa01.html

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Sick Building Syndrome

January 29, 2011
Published on Monday, March 30, 2009 by CommonDreams.org

 

Sick Building Syndrome: Floods, Mold, Cancer, and the Politics of Public Health

by Ritt Goldstein

It’s spring, and flooding is again making headlines, although the ‘sick building’ and mold dangers following in flooding’s wake are becoming better appreciated. But disturbingly highlighting the imperatives of such awareness, recently published research has – for the first time – shown the high cost of what the sickness that comes of ‘sick buildings’ can mean, with the potential for long-lasting disability now being a documented fact.

According to a ground breaking Swedish study appearing in The International Archives of Occupational and Environmental Health, 45% of so-called ‘Sick Building Syndrome’ (SBS) victims – treated at hospital clinics – no longer have the capacity to work. Twenty percent of these sufferers are receiving disability pensions, 25% are “on the sick-list”. Emphasizing SBS’s devastating potential, the study warned that the possibilitiy “of having no work capabilities at follow up was significantly increased if the time from (SBS) onset to first visit at the hospital clinic was more than 1 year. This risk was also significantly higher if the patient at the first visit had five or more symptoms.”

It’s unfortunate that knowledge of the serious nature of SBS has not emerged sooner. But, as highlighted by the US Department of Veteran’s Affairs during last Fall’s revelations upon Gulf War Illness, sometimes political and economic considerations affect health policy, leading to a serious health issue long being “denied” or “trivialized”.

‘Sick Building Syndrome’ (more precisely termed ‘non-specific building-related illness’) is typically a product of breathing indoor-air contaminated by mold and/or chemical toxins. Things such as flooding, or poor building contruction, design, or ventilation, can bring on the problem.

SBS’s symptoms have been known to include: mucus-membrane irritation, neurotoxic effects, respiratory symptoms, skin symptoms, gastrointestinal complaints, and chemosensory changes. And while the malady has been increasingly seen since the 1970′s, when energy concerns led to the reduction of indoor ventilation by as much as two thirds, the Swedish study is thought to be the first where the problem has been demonstrated as a chronic condition sparked by environmental causes.

The study was performed by scientists at the Academic Hospital of the University of Umeå, in Northern Sweden, and was based upon locally derived data. But while differences in disability laws and culture may exist between any two nations, as the study strongly observed: “symptoms aggravated by environmental factors exist within this group of patients”.

Providing an interesting parallel, in the aftermath of Hurricane Katrina the New Orleans area saw the phenomenon of ‘Katrina Cough’ occur; a phenomenon marked by a number of SBS symptoms. Though Louisiana health authorities have been dismissive of the ‘Cough’, at present Tullane University School of Medicine has received funding for a five-year study, Tullane’s newspaper headlining: “Researcher Seeks Truth About ‘Katrina Cough’”.

Unfortunately, even problems more serious than SBS can occur through mold, the US Environmental Protection Agency’s (EPA) website explicitly warning that the inhalation of mycotoxins (toxins naturally occurring in some species of molds) has been reported to cause maladies that include cancer. Illustrating what this can mean, recent Swedish headlines shocked the Scandinavian Peninsula with news of just such a cancer outbreak.

Strömbackaskola, a high school in the Northern city of Piteå, was the scene of the cancer cluster. In the worst affected area, about 40% of the employees have been stricken with the disease, with the local paper headlining “The mold in the school is cancer causing”, a national headline reading “Mold in school gives teachers cancer”.

Though the cancer cases began appearing years ago, and its cause was earlier investigated, it was only recently that ‘toxic black mold’, Stachybotrys, was found in the affected areas.

Perhaps even more disturbing, while some claim tragedies like this are unforeseeable, others see them born of a misguided defense of past mistakes, with indifference, and even occasional tactics of intimidation, nurturing tragedy. No land is immune to the temptations of politics and economics…and no land is immune to cancer.

As early as 1999, findings of an association between inhaled mycotoxins (such as aflatoxin) and cancer were reported by the National Institute for Occupational Safety and Health (NIOSH), their study noting: “Several studies have provided evidence for the association of cancer in humans with inhalation of aflatoxin contaminated dust, e.g., lung cancer or colon cancer…elevated risks for liver cancer and cancers of biliary tract”. Similar to the EPA, the NIOSH study further warned: “Diseases associated with inhalation of fungal spores include toxic pneumonitis, hypersensitivity pneumonitis, tremors, chronic fatigue syndrome, kidney failure, and cancer.”

It is regrettable that one can only speculate upon what the true incidence of mold-related cancer, and other mycotoxin-related illness, may be, both in the US and abroad.

While an American, I live in Sweden and have for the last twelve years. Perhaps because Sweden isn’t a large nation, Swede’s social activism, their relationship with their government, communities, and each other, is considerably stronger than that I once knew. But, despite this…

In an article published this summer upon Sweden’s ‘sick schools’ – in Scandinavia’s largest daily, Aftonbladet – I had emphasized that mold can indeed cause maladies ranging from asthma to cancer. But as early as 1997, Stockholm’s papers were already broaching questions of ‘sick building’ related cancers, questions which seem to have been ignored.

At that time, Swedish toxicologist Tony Kronevi was widely quoted as warning of a potential “cancer explosion” resulting from “sick buildings in Sweden”. He specifically warned of problems with “sick schools”, urging that people take “this problem seriously. Now.”

It’s unfortunate that, despite such warnings, this past summer a Swedish government report revealed that those at the national level had yet to take sick schools “seriously.” Just months later, in December, news of the cancer cluster broke.

Was this an instance of political and economic considerations affecting health policy? Was a serious health threat long “denied” or “trivialized”?

Further highlighting what some here have termed ‘indifference’, Swedish parliamentarian Jan Lindholm (Green Party) observed that, for him, it’s “totally inconceivable that the government shows no interest in finding out how over 20 people in a workplace (Strömbackaskola) came to be smitten by cancer”. He added, “this Government is the landlord’s government.”

Approximately a week before news of Strömbackaskola’s cancer outbreak broke, the Swedish Minister for Public Health told Swedish National Radio that she believed the link between poor indoor air and poor health was too weak to act upon.

Reflecting the Minister’s position, Sweden’s governmental websites lack the kind of mold and ‘sick building’ warnings provided by entities such as the EPA and NIOSH, despite the recent SBS findings from Umeå and similar pronouncements from other scientists. Given this, it’s particularly unfortunate that the very young are those most at risk from indoor air problems.

Last Fall I interviewed one of America’s leading authorities on mold – Dr. Dorr Dearborn, Chairman of the Department of Environmental Health Sciences at Case Western Reserve University School of Medicine. Dearborn came to national attention in 1997, The New York Times headlining “Infants’ Lung Bleeding Traced to Toxic Mold”, a revelation he was instrumental in bringing forward. Though his findings and those of his equally courageous colleague, Ruth Etzel, became the subject of considerable debate, the EPA’s “Children’s Health Initiative on Toxic Mold” continues to warn: “A cluster of cases of acute pulmonary hemorrhage/hemosiderosis was reported in Cleveland, Ohio, where 27 infants from homes that suffered flood damage became sick (nine deaths) with the illness starting in January 1993.”

In the interim since his and Dr. Etzel’s findings, animal studies continue to provide ever added confirmation of their conclusions upon toxic mold’s dangers.

During the course of my interview with Dearborn, I asked what had occurred that took the momentum from the ‘sick building’ and mold reforms which many then saw on the horizon. Emphasizing he could just speculate upon what factors had earlier impacted America’s ‘mold debate’, Dearborn spoke of “pressure from industrial sources – insurance companies, etc – to ‘back off’ this problem.”

In Sweden, people have spoken of the “gigantic costs” which addressing ‘sick buildings’ would entail, and this has led many to rationalize away inaction accordingly. Of course, the costs of the widespread illnesses and property damage associated with ‘sick buildings’ is thought to be even more substantive, though, far less visible and borne mainly by individuals, not business or government.

I won’t point out that discussion of isolated cancer cases associated with sick buildings has barely begun here. Nor will I speculate upon the fate of those living in places like Herrgården, a large housing complex in Sweden’s southern city of Malmö’s Rosengård area, where – contrary to the Country’s ‘squeaky clean’ image – recent news stories revealed that half of the apartments are mold infested.

An interview with a number of Rosengård’s healthcare workers recently appeared in local media. The ongoing tragedy they described isn’t pretty.

Within the last twelve months, this nation of nine million has had at least three major residential housing scandals, each involving large numbers of families. And while roach infested slums have sadly now come to Sweden, two of the three scandals involved upscale developments – one was a community of villas on the Country’s west coast, the other was waterside condos in Stockholm.

Of course, in the US, comedic icon Ed McMahon won a $7 million dollar judgment following his Beverly Hills home’s mold problems. But just this March, the TV news program ‘Inside Edition’ ran a story titled: “Did Mold Cause Ed McMahon’s Life-Threatening Cancer?”

In Sweden, the widespread failure to adequately enforce safe-housing laws has been described as an ‘open secret’. In The States, the phrase ‘managed debate’ is used to describe the process through which better regulation of ‘sick buildings’ and mold is kept from even becoming law.

Both circumstances have a cost, and public health has paid dearly. Is Sweden’s mold-associated cancer unique, or rather, is it unique only in that this instance of mold-associated cancer was so large that it could not be rationalized away, dismissed and ignored?

In a November article of mine – which was also published in Aftonbladet – I compared Sweden’s ‘sick building’ scandal to that of China’s melamine. Both scandals are the product of what have been described as ‘open secrets’, but according to a 2003 Swedish survey, sick buildings are sickening a vastly higher population percentage than melamine did.

While our globe is currently witnessing the havoc which lax regulation and unconscionable behavior meant for the financial markets, is this but one indicator of something ‘deeper’? America’s ongoing prescription drug and food scandals, China’s melamine, and Sweden’s ‘sick building’ scandal – all suggest that our ‘crisis’ may be considerably broader than merely one of finance.

History has long demonstrated the high price of blind, ruthless ambition, a price which our world has perhaps only begun to realize it is now paying. Quoting Swedish parliamentarian Jan Lindholm, “totally inconceivable” well describes present circumstances.

We have a problem, a bad problem, and it has its causes. In example, Kronevi told me of a Swedish book he participated in on building issues, a book which might have started vigorous ‘sick building’ debate years ago. He also provided copies of correspondence highlighting how the text had been effectively suppressed.

Of course, a passage from that book noted that a number of Swedish cities, “have noticed an unusually high number of cancer cases connected to SBS symptoms”, with other passages equally interesting. What is also ‘interesting’ are others who have described abuses of power, the efforts to stifle critical voices.

In 2004 I interviewed a number of leading US scientific figures, doing so while writing an exposé series on the drug industry. One article, “Intimidation, Politics and Drug Industry Cripple U.S. Medicine”, contained several interviews worth revisiting.

Kathleen Rest, executive director of the Union of Concerned Scientists (UCS) – whose membership is comprised of much of the cream of America’s scientific community, including a number of Nobel laureates – told me of a “pattern”, a pattern of “politicizing or manipulating scientific advisory boards.” She also noted the UCS had found “evidence and cases of agencies manipulating or suppressing scientific analysis.”

Dr. David J. Graham, the courageous Associate Safety Director of the US Food and Drug Administration (FDA), separately added that “intimidation of scientists who threaten the status quo at FDA is routine.”

It was just this summer when a Swedish environmental researcher – who spoke only under condition of anonymity – told me that challenging the Swedish status quo on ‘sick building’ issues was almost like challenging the mafia. Other Swedes, from different perspectives, have spoken similarly. Leif Kåvestad – a former environmental inspector who received a personal award from the then Swedish Prime Minister, Göran Persson – is one of these.

Both Kåvestad and the researcher indeed described efforts aimed at intimidation, efforts sometimes undertaken by those pursuing self-serving denials of Swedish indoor-environment problems.

On a local level, Kåvestad spoke of how “community Health Departments often cooperate with the community housing companies and their consultants. Tenants which complain over sick buildings with health complaints are threatened…the parties together act like a mafia against the tenants.” And while speaking generally, he added he’s aware of this pattern at some of Stockholm’s ‘sick buildings’, and as an ombud has just taken the question before the Environmental Court.

There is good reason to believe that such circumstances are not limited to Sweden.

An SBS victim myself, I have just filed a civil suit against my landlord, Kopparstaden, a housing firm within the Swedish county of Dalarna. In 2007, my community’s health department declared the apartment Kopparstaden had recently rented me to be uninhabitable.

To this day, my health remains shattered – I suffer a particularly nasty form of SBS.

When I arrived here, as a newcomer to the community, the local ‘Integration Authority’ had offered me the flat. Though it had an unusual odor from the first time I saw it, I was told the odor would ‘disappear’ when I used the plumbing.

When I asked to see other apartments, I was told by the Integration Authority that the apartment was ‘fine’, that there were no others, and, if I didn’t accept it, I wouldn’t be offered another and would likely not find any apartment on my own. Given the circumstances, and that I had no reason to then disbelieve the assurances I was given, I took the flat accordingly.

Later, laboratory analysis revealed “powerfully elevated” mold levels and “unusually high levels” of chemical toxins – such as chloroform – were in every breath I took. According to my physicians, virtually all of my belongings must be disposed of because of contamination, and my insurance policy – as with most insurance policies today – does not cover this kind of claim. However, Kopparstaden’s only compensation offer for my ruined property and shattered health was about $1,000. I refused it.

It is difficult for me to reconcile the many instances I’ve witnessed demonstrating Swedish society’s honesty and integrity with the circumstances I describe.

While the US civil court system has awarded a number of ‘sick building’ and mold sufferers millions of dollars in damages, such things do not exist in this country – there are no punitive damages in this legal system, court awards are ‘minimal’. And, despite such circumstances accentuating the need for robust enforcement of safe housing laws, the opposite appears to have occurred. But, this does well illustrate how the costs of ‘sick buildings’ – though extremely substantive – are today borne mainly by individuals, not the businesses which provide ‘sick’ properties, nor the governmental entities which allow them to continue doing so.

Is today’s ‘crisis’ far broader than merely finance? Has Public Health been sacrificed for political and economic motives?

While many have indeed called the widespread compromising and failure of regulatory authorities an ‘open secret’, perhaps ‘national catastrophe’ may well prove itself a far better term.

LINKS YOU MAY CARE TO USE
© 2009 Ritt Goldstein

Ritt Goldstein (ritt1997@hotmail.com) is an American investigative political journalist based in Stockholm. His work has appeared in broadsheets such as Australia’s Sydney Morning Herald, Spain’s El Mundo and Denmark’s Politiken, as well as with the Inter Press Service (IPS), a global news agency.

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Mold: Katrina Aftermath

January 29, 2011

Just Breathing in Katrina-Flooded Homes Poses Health Risks

 

http://www.ens-newswire.com/ens/feb2009/2009-02-11-092.asp

BATON ROUGE, Louisiana, February 11, 2009 (ENS) – Homes flooded by Hurricane Katrina in 2005 may contain harmful levels of airborne contaminants in addition to polluted sediment deposits, finds new research from scientists at Louisiana State University in Baton Rouge. Indoor gases, mold films, and aerosols may have exposed residents, first responders, and demolition crews to dangerous contaminant levels without the need for direct skin contact, according to the modeling study published in the April 2009 issue of “Environmental Engineering Science,” a peer-reviewed journal published by Mary Ann Liebert, Inc.

The model published by Nicholas Ashley, Kalliat Valsaraj, and Louis Thibodeaux, from Louisiana State, details the possible types and levels of volatile and semi-volatile organic pollutants that might be present inside the flooded homes.
When made landfall on the Louisiana and Mississippi Gulf Coasts on August 29, 2005, failure of protective levees around the city of New Orleans resulted in floodwaters inundating numerous residential areas to a depth of six to nine feet for nearly two weeks.
The floodwaters carried with them suspended sediments from Lake Pontchartrain, along with other contaminants accumulated in the submerged neighborhoods, the authors say.
When floodwaters were later pumped from residential areas back into Lake Pontchartrain, sediment remained behind.
“Because the houses sat unoccupied for weeks and months after the storm, volatile and semivolatile sediment pollutants partition into the vapor space inside the home, where they present a gas-phase exposure to persons entering the home,” the study states. 

This New Orleans resident searches for salvageable items in her home following Hurricane Katrina. Many of the homes were like this one with mold damage to the ceiling. (Photo by Andrea Booher courtesy FEMA)

The warm, damp conditions inside the flooded homes led to the growth of mold on walls, furniture, and other interior surfaces, which may have absorbed contaminant gases. These mold films in turn emit contaminated spores into the air inside the home.
The authors conclude that these mold spores may represent a significant sink for polycyclic aromatic hydrocarbons, or PAHs; pesticides and esters such as phthalates, which are plasticizers.
They also mention aldehydes and organic acids as contributors to the airborne contaminants inside the flooded houses.

“An exposure assessment that only considers exposure to gas-phase materials of these classes may under predict the total mass of pollutant which a person may be inhaling,” the authors write.
These newly identified inhalation exposure routes could present a significant health risk to people who walk inside and breathe the air in contaminated homes, even if there is no skin contact with the sediment covering the floors or the mold growing on the walls and other surfaces, concludes the paper, entitled, “Multiphase Contaminant Distributions Inside Flooded Homes in New Orleans, Louisiana, after Hurricane Katrina: A Modeling Study.”
Finally, the authors warn, the PAHs detected in the sediment and mold films may be cause for concern when contaminated housing materials are disposed of.
“This may represent a special problem for waste incinerators where products of incomplete combustion may release partially oxidized PAH or other species to the air,” they advise. “In landfills or other disposal facilities, regular monitoring of run-off effluents or waste streams may be needed.”
“This is an excellent and important study by one of the top research teams in the nation,” said Domenico Grasso, PhD, editor-in-chief and dean and professor in the College of Engineering and Mathematical Sciences at the University of Vermont-Burlington, who was not involved in the study. “It will help us better prepare first responders for the additional risks that may be posed by such events.”
“Results indicate that prolonged contact with contaminated sediment, vapor-phase organics, and pollutant-laden aerosolized mold spores, may result in a significant exposure of New Orleans area residents and recovery workers to toxic materials,” the authors write. “Future research efforts should further probe the effects of mold as a transport and partitioning medium for volatile and semivolatile materials, because experimental data in this area are severely lacking.”
The Federal Emergency Management Agency warns that exposure to mold can cause respiratory tract infections, especially for infants, children, immune-compromised patients, pregnant women, the elderly and individuals with existing respiratory conditions, allergies, multiple chemical sensitivity, and asthma.
Copyright Environment News Service (ENS) 2009. All rights reserved. 

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