New weapons in the war on toxic mold

[Guest guest]

http://www.salon.com/tech/feature/2002/09/12/mold/index.html

New weapons in the war on toxic mold

Environmentally friendly building materials may help combat " sick building

syndrome. " But if that doesn't work, there's always your lawyer.

- - - - - - - - - - - -

By Sam Boykin

Sept. 12, 2002 | Just days after moving into their new $300,000 home in

Austin, Texas , Dawn and and their two young daughters

began experiencing health problems. At first it was the occasional headache,

nosebleed or bout of dizziness. They also started having trouble

concentrating, and often felt muddled and fuzzyheaded. When a water stain

appeared on the ceiling, it was discovered that a leaky air-conditioning

line had bred a big patch of black mold in the attic, and spewed water down

the walls and under the floors. Five weeks later, as their health continued

to deteriorate, the family abandoned their home and nearly all

its contents.

" I was bumping into walls and getting lost in my own neighborhood, " says

Dawn . " The final straw was when my 16-month-old daughter stopped

talking. She regressed to primitive grunting and screaming; she lost her

coordination and dexterity. The house was literally killing us. "

Both Dawn and her youngest daughter, a, were diagnosed with neurological

disorders and brain damage, as well as autonomic dysfunction and

hypotension. Dawn, who has a degree in electrical engineering from the

University of Connecticut and used to design microprocessor chips, feels

like a part of her has been forever stolen. " I was pretty damned smart, " she

says. " And there are areas of my brain now that are permanently damaged.

This affects my whole family, especially now that I'm a mother. "

In March, the s sued the builder, Weekley Homes, claiming

that their negligence during the construction process created the optimal

environment for the growth of toxic molds and compounds, many of which

produce poisonous chemicals that cause chronic and acute health problems,

including cancer.

The afflictions plaguing the s are hardly an isolated incident. An

increasing number of people both at home and in the workplace are being

affected by sick building syndrome (SBS), defined as situations in which a

substantial proportion of building occupants experience discomfort and

health effects that are relieved upon leaving the building. In fact, the

Environmental Protection Agency has indicated that indoor levels of

pollutants are often higher -- sometimes as much as 100 times higher -- than

outdoor levels. Moreover, the EPA says that sick buildings cause an

estimated loss of $61 billion a year in employee absenteeism, medical costs,

reduced productivity and lower earnings.

Legal action has been a fast-growing response to the rising incidence of

SBS -- proliferating as quickly as mold behind damp drywall. The building

industry has responded in kind -- after the s filed their lawsuit,

they discovered that a clause in their construction agreement stipulated

that all disputes must be resolved through binding arbitration, a legal

condition that has become increasingly common in the construction industry.

This means that a designated third party -- one often chosen by builders,

contractors and attorneys with ties to the construction industry -- will

unilaterally settle a suit, with no judge, jury, right of appeal and often

no public record. And even if the s decide to move forward and

prevail in the arbitration, they stand to have tens of thousands of dollars

in arbitrator fees deducted from any award.

As concerns and lawsuits have mounted, building and furniture industries

have begun to introduce environmentally friendly building materials,

toxic-free paints and other products and advances in ventilation technology.

The movement isn't as quick as some would like, and it won't do anything to

remedy the damage already caused, but it is a sign that the same industry

whose phenomenal growth has led to unprecedented health problems is

realizing that it has to clean up its act, or suffer the consequences.

There are multiple causes of SBS, but the main culprits are toxic mold and

volatile organic compounds. " Molds have an array of biological weapons that

they use against each other to compete for available nutrients, " says

Harriet Ammann, senior toxicologist at the Washington state Department of

Health. " And some of them, under certain circumstances, can make toxic

materials of varying potency. We sometimes get caught in the biochemical

warfare crossfire. "

Volatile organic compounds (VOCs) are found in the chemicals used to

manufacture and prepare many building materials. Depending on moisture

levels and temperature, some of these chemicals evaporate, and if a

structure is not properly built or ventilated, the indoor air may become

toxic and unhealthy.

" Chemicals like formaldehyde are in the resin used to manufacture most

cabinets, wall paneling and closet shelves, " says Bower, founder of the

Healthy House Institute, an organization through which he writes books and

produces videos on indoor air quality. " They may have a fancy oak, walnut or

cherry veneer, but underneath is particle board or plywood held together

with toxic materials. The clear finish used on cabinetry and furniture is

also a formaldehyde-based chemical. It's so potent that it will burn itself

off in six to 12 months. But even after that, the plywood or particleboard

under the veneer will continue to off-gas for several more years. "

Moreover, as houses, apartments and office buildings are being erected at a

record pace, proper building standards are not always followed, particularly

when it comes to moisture protection and ventilation. " The only reason mold

grows indoors is because of moisture, " says Ammann. " And that's a big

problem with a lot of modern construction. Houses and buildings are put up

in such a hurry with a relatively unskilled workforce. "

Bower doesn't think the construction industry will change its behavior

quickly. " Based on what I've seen over the past few years, I think it's

going to be a slow evolution, " he says. " I don't think industry is willing

to admit that they made an unhealthy product, but they certainly can say

'We're improving our products, and here are the latest improvements.' "

" Today consumers have more of a choice whether they buy products that have

high or low VOC emissions, " says Ammann. " But most people having houses

built don't pay attention to that kind of detail. It really requires some

research to find these products. "

Of the environmentally friendly building materials being marketed, two of

the more popular products are Medex, an exterior-grade product originally

developed for highway signs, and Medite II, which fills the need for a

lower-cost product for interior applications such as cabinets. These

materials are bound with " phenol-formaldehyde, " which does not off-gas as

much formaldehyde as do conventional building products made with

urea-formaldehyde. Standardized tests indicate that the formaldehyde levels

from both products are well below most indoor air-quality standards.

In addition to low-formaldehyde board manufacturers like Medex, there is a

growing number of other environmentally friendly products including nontoxic

and VOC-free paints and finishes, flooring and roofing materials, as well as

a variety of cleaning products.

Another key feature of a healthy house is sufficient ventilation. You can

spend as little as $100 to upgrade your existing local ventilation system,

such as quieter and more energy-efficient exhaust fans in the bathroom and

kitchen. Or you can spend $1,000s for a general ventilation system, which

brings in fresh air and exhausts stale air throughout the entire house.

" It's sort of like the difference between buying a used Geo or a brand new

Mercedes-Benz, " says Bower. " Of course a lot depends on your needs. "

Most experts stress that to ensure a healthy house, consumers should expect

to perform a little homework and due diligence, as well as incur some

additional costs (usually around 10 percent more than a conventional home).

But if toxins and molds are of a particular concern, it's well worth it.

" If the added expense cuts down on your doctor bills or insurance payments

or the possibility of having to destroy the house because of moisture

problems hidden in the wall cavity, it's money well spent, " Bower says.

Of course not everyone reacts to toxic molds or VOCs the same way, and

experts say there is no widely accepted threshold to these toxins. " As with

all toxic materials, the amount of exposure is really important, " says

Ammann. " But we still don't have a good way of measuring the connection

between mold exposure and health. That field is still somewhat in its

infancy. "

" There are people like Burns who can smoke cigars every day and live

to be over 100, " says Bower. " Then there are those who are on the

hypersensitive end of the spectrum. Say you have a family of five, typically

you're only going to see one or two family members that is hypersensitive,

unless they just happen to be genetically disposed, or the problems are

really severe. "

Unfortunately for the s, their case is a bit extreme in that they

fall into both categories. Dawn says that although Weekley Homes fixed the

leak in the attic, they failed to dry or remove the wet building materials.

Subsequent tests by an Austin environmental engineering firm revealed that

the s' house contained high levels of both toxic mold and VOCs

such as benzene, benzaldehyde and formaldehyde.

Ironically, because Dawn has long battled allergy problems, the family had

ordered special design features for their new house to reduce the potential

of allergens, including all wood and tile floors. (New synthetic carpet

off-gases hundreds of VOCs and is a particularly fertile breeding ground for

mold and other allergens). But after moving in, they soon noticed the water

leaks, and began suffering from a number of health problems. " We started to

get sicker and sicker, " Dawn says. " But at the time, we had no idea what

toxic mold or VOCs were. "

The family has been living in a small Austin hotel since abandoning their

house last May. " Weekley Homes paid for the hotel for the first three

days, then they dropped us, " Dawn says. " Since then we've been on our own,

paying two sets of living expenses. We've lost every piece of belonging we

had -- clothes, furniture, even the kids' toys. It's all contaminated. The

house is like a toxic gas chamber. "

About the writer

Sam Boykin is a reporter with Creative Loafing newspaper in Charlotte, N.C.

His work has also appeared in FHM and Attaché