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Story Ideas
Background and Context
State of the Science
Health Effects
Property Damage
Spore-borne Lawsuits
Resources

'Toxic Molds'
by Kristin Marstiller

Why Cover Molds?

Molds can be health issue, a minor one for many people and a serious one for some. Molds can cause moderate to extensive property damage. Molds can grow on most organic substances if moisture and oxygen are present, and they grow by consuming what they land on. High levels of molds indoors can cause illness in susceptible people. When potential health effects are combined with molds’ destructive consumption of property, costs in health and property damage can be considerable. With changes in weather patterns, molds may have more prominence in health care issues and property damage, affecting insurance companies and generating lawsuits.

The proposed United States Toxic Mold Safety and Protection Act (HR 5040, introduced by Michigan Democrat John conyers, Jr.), suggests a growing national awareness of "toxic mold," although passage of the bill is highly unlikely. "Exposure to mold growth in residential, public and commercial buildings is believed to have caused serious medical conditions -- bleeding lungs, digestive problems, hair loss, nausea, loss of memory, reduced cognitive skills, and death. Property damage from mold growth has destroyed millions of dollars in real estate and forced homeowners to the curb.”

Story Ideas

  1. Have changes in weather patterns in your area caused an increase in humidity or flooding, resulting in an increase in mold problems?
  2. Is your state or local government considering legislation or regulations to deal with mold?
  3. Are local hospital and clinics trained to recognize mold-related health problems? Would they recognize the symptoms of a toxic mold illness?
  4. Has your local health community seen an increase in mold-related asthma or allergic reactions? Have there been any mold-related fatalities? Have they shown an actual link between asthma or alergic reactions and exposure to mold?
  5. Have local insurance companies had an increase in claims for mold property damage or illnesses caused by molds? Have there been payments for property damages believed to be caused by a mold infestation?
  6. Has there been an increase in mold-related lawsuits?
  7. Have local landlords seen an increase in complaints regarding molds?
  8. Do local companies specialize in mold mitigation? What are their credentials and training in this area? Is their "mold business" changing -- increasing or decreasing?

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Background and Context

Mold is a type of fungi. There are between 50,000 and 250,000 species of fungi, and fewer than 200 species of these have been identified as harmful to humans. Molds can grow practically anywhere – indoors and outdoors. Outside, molds play a critical role in breaking down leaves, wood, and other plant debris. Indoors, mold is more problematic. More than 1,000 different types are found inside homes in the U.S. Molds spread and reproduce by making spores. The small and lightweight spores travel through the air. When they land on a damp spot on any organic substance, such as wood, paper, carpet, fabric, and foods, they can grow and break down the substance they land on. Mold is able to stay dormant for a long time in dry conditions, but given moisture and nutrients, they can eventually destroy whatever they grow on.

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State of the Science

In an August 13, 2002, letter in response to H.R. 5040, the American Industrial Hygiene Association (AIHA) said it is impossible to define or set permissible exposure levels for toxic molds: “Toxic mold is a term that has been originated in the media and has no scientific basis … It is virtually impossible to specify levels at which the many different kinds of mold may be considered ‘toxic.’”

A Centers for Disease Control and Prevention (CDC) official earlier had testified that although there are many unresolved scientific questions, exposure to high levels of molds indoors is known to cause illness in susceptible people. He recommended that buildings be maintained to prevent water damage and mold growth, and that moldy materials be cleaned up.

the CDC official agreed with AIHA, saying “there are no accepted standards for mold sampling in indoor environments or for analyzing and interpreting the data in terms of human health. It is not known what quantity of mold is acceptable in indoor environments with respect to health … and because individuals have different sensitivities to molds, setting standards and guidelines for indoor old exposure levels is difficult and may not be practical.”

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Health Effects

Not all exposures to mold present health problems. Some people are sensitive to molds and may have more severe reactions. Molds can produce allergens, irritants, and in some cases, toxins that may cause reactions in humans. The types and severity of symptoms depend on the types of mold present, the extent of exposure, the age of the individual, and their existing sensitivity. Some specific reactions can include:

Molds can also produce toxic substances called mycotoxins. Exposure pathways for mycotoxins can include inhalation, ingestion, or skin contact. According to the CDC, molds can cause illness in situations other than humid indoor environments, such as in hospital where nine percent of hospital-acquired infections are caused by fungi. Molds have also been associated with some cancers. Molds have also been associated with some cancers. The National Toxicology Program has classified two mold-produced toxins as possible human carcinogen, and chronic ingestion of contaminated food containing these toxins has been associated with liver and kidney tumors. CDC says it does not know if effects such as pulmonary hemorrhage, memory loss, or lethargy are caused by molds.

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Property Damage

Molds can damage property. The Insurance Information Institute has estimated homeowner losses of nearly $9 billion with damages particularly high in Arizona, California, Florida, Nevada, and Texas. The group points to average claim costs of $35,00, with some household claims going beyond $100,000. The town of Fairfield, Ct., recently was awarded $1.2 million in an agreement with its insurance company over water leaks at McKinley Elementary School, which had to be closed and demolished because of mold contamination. The American Insurance Association’s (AIA) website's posting of priorities lists in its fourth bullet under the number one priority: "assist AIA member companies in containing and managing the financial exposure related to mold claims.”

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Spore-borne Lawsuits

The insurance group says “surge and frequency and costs of these mold claims” can’t be explained just by changes in the weather, population growth, or new strains of toxic molds. the group points also to frequency and extent of litigation and accusations of severe and permanent health damage. The group says there is no peer-reviewed, scientific research to back up those claims. A search on the Internet of “lawyer and toxic mold” brings up more than 8,700 hits, many for toxic tort law firms, pointing to things such as "Mushrooming Problem" and "The Growing Problem of Mold." Some tort lawyers envision (or hope?) mold may be "the next asbestos." In October 2001, California became the first state to enact legislation addressing mold, The Toxic Mold Protection Act of 2001. The law establishes a statewide policy regulating mold, leading to possible permissale mold exposure limits, if feasible, and guidelines for identifying and remediating molds, and for disclosure requirements.

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Resources

American Industrial Hygiene Association, 2700 Prosperity Avenue, Suite 250, Fairfax, VA, 22031; (703) 849-8888; (703) 207-7266 -- fax; Website: www.aiha.org.

American Academy of Pediatrics, 141 Northwest Point Blvd., Elk Grove Village, IL 60007; (847) 434-7877; E-mail: pubrel@aap.org; Website: www.aap.org/policy/re9736.html.

California State Department of Health Services, Division of Environmental and Occupational Disease Control, Environmental Laboratory Branch, 2151 Berkeley Way, Berkeley, CA 94704; 510-540-2476, (510) 540-3022 -- fax; Download: www.library.ca.gov/crb/01/notes/v8n1.pdf.

Honorable John Conyers, Jr., 2426 Rayburn Building, Washington, DC, 20515; (202) 225-5126; (202) 225-0072 -- fax; www.house.gov/conyers/mold.htm.

Insurance Information Institute, 110 William Street, New York, NY 10038; (212) 346-5500; Website: www.iii.org.

Pennsylvania State University, 208 Mueller Lab, University Park, PA 16802-5301; (814) 863-0278; (814) 865-9131 -- fax; Pennsylvania Housing Research Center; Download: www.bio.psu.edu/people/faculty/whittam/research/B0301.pdf.

Policyholders of America; (888) 648-8823; Website: www.policyholdersofamerica.org/index2.html.

Stephen C. Redd, MD, Chief, Air Pollution and Respiratory Health Branch, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA; (404) 498-1019; (404) 498-1088 -- fax; scr1@cdc.gov; Website: www.cdc.gov/nceh/airpollution/mold/stachy.htm.

U.S. Environmental Protection Agency, Office of Air and Radiation, Indoor Environments Division (6609J), 1200 Pennsylvania Ave., NW, Washington, DC 20460, EPA Publication #402-K-02-003; www.epa.gov/iaq/molds/moldguide.html, www.epa.gov/iaq/pubs/moldresources.html.

Washington State Department of Health, Office of Environmental Health Assessments, 7171 Cleanwater Lane, Building 2 & 3, PO Box 47846, Olympia, WA 98504-7846; (360) 236-3200, (877) 485-7316; ATTN: Harriet Ammann; e-mail: harriet.ammann@doh.wa.gov.

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October 9, 2002