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Environmental Hazards
Our job as your professional home inspector is to alert you, to the extent
possible, to unknown problems and potential environmental hazards in your current or potential house. Ours is a non-invasive
visual inspection of your property. While we may be able to alert you to possible problems, our basic inspections are no substitutes
for specialized contaminant testing.
ASBESTOS Asbestos is a mineral fiber that can be positively
identified only with a special type of microscope. There are several types of asbestos fibers. In the past, asbestos was added
to many products to strengthen them and provide fire resistance and heat insulation. If disturbed, asbestos material may release
asbestos fibers which can be inhaled into the lungs. Asbestos material that crumbles easily if handled or which has been scraped,
sawed, or sanded into a powder is more likely to create a health hazard. Breathing high levels of asbestos fibers can lead
to an increased risk of lung cancer, mesothelioma (cancer of lining of chest and abdominal cavity), and asbestosis (lungs
scarred with the tissue). Houses built between 1930 and 1950 may have asbestos insulation. Most of today’s products
do not contain asbestos. If asbestos material is more than slightly damaged or you plan changes that might disturb it, you
require a professional for repair and removal. Before home remodeling, find out if asbestos is present.
Excerpts
from U.S. Environmental Protection Agency “Asbestos and Vermiculite”.
MOLD Mold (fungi)
is present everywhere, indoors and outdoors. There are more than 100,000 species of mold, at least 1,000 of which are common
in America. Species of Cladosporium, Penicillium, and Aspergillus are some of the most commonly found species. Mold most likely
grows in bathrooms, basements, and anywhere else where there is dampness or water. Many types of mold routinely encountered
aren’t hazardous to healthy individuals. Too much exposure to mold may cause a worsening of such conditions as asthma,
hay fever, or other allergies. Fevers and breathing problems in a vulnerable individual are possible but unusual. When moldy
material becomes damaged or disturbed, spores, which are reproductive bodies similar to seeds, can be released into the air.
Exposure can occur if people inhale the spores, directly handle moldy material, or accidentally ingest the spores. Since all
molds need water to grow, mold can grow almost anywhere where there is high humidity, dampness, or water damage. Most often
molds are confined to areas near the water source. Removing the source of moisture through repairs or dehumidification is
crucial in preventing mold growth. Correcting underlying water damage and cleaning the affected area is the best way to treat
mold. If mold contamination is extensive, a professional abatement company may be needed.
Excerpts from The
New York City Department of Health & Mental Hygiene, Environmental & Occupational Disease Epidemiology, “Facts
About Mold”. RADON Radon is a radioactive
gaseous element produced in the disintegration of radium, a radioactive metallic element. It cannot be detected by the senses
and can be confirmed only by sophisticated instruments and laboratory tests. The gas enters a house through pores and cracks
in the concrete or through floorboards of poorly ventilated crawlspaces, especially when wet ground allows the gas to escape
easily through the soil and disperse in the atmosphere. Radon is a lung carcinogen: the National Academy of Sciences estimates
radon causes some 15,000 to 22,000 lung cancer deaths annually. The U.S. Surgeon General and the EPA recommend all houses
be tested for radon. Houses with high radon levels can be fixed.
Excerpts from U.S. Environmental Protection
Agency, “Indoor Radon”.
WOOD-DESTROYING ORGANISMS/INSECTS Termites, which play a positive role in recycling wood and plant material, become a problem when they consume structural
lumber. Every year thousands of U.S. housing units require termite treatment. These pests cause serious damage to wooden structures
and posts and can also attack stored food, household furniture, and books. Successful termite management requires special
skills, including a working knowledge of building construction and an understanding of termite biology and identification.
In most cases, it is advisable to hire a professional pest control company for the inspection and control problem.
Wood-boring beetle larvae feed on wood and wood products. Adults of some species bore holes into plaster,
plastic, and soft metals. Many species cause problems when emerging from wood in newly constructed buildings because they
leave small circular or oval exit holes in the wood. To avoid these problems, infested wood must be kiln-fried before being
used for lumber. The species Deathwatch Beetles is primarily found in soft woods (girder, beams, foundation timbers, some
types of furniture, with some species attacking books). False Powderpost female beetles bore a tunnel, or egg gallery, into
wood or other materials, then deposit eggs in pores or cracks within the tunnel. Adults of some species bore through such
soft metal as lead and silver, as well as plaster and other non-wood materials. Affected structural wood should be removed
and replaced whenever possible.
Wood Wasps and Horntails. Wood wasp damage in buildings is likely
to be more cosmetic than structurally weakening. Emerging wood wasps can chew through any substance: wallboard or plaster
walls, hardwood floors, carpeting, linoleum, non-ceramic floor tiles, and other interior surfaces.
Carpenter
Ants. Several species can damage wood in building and other structures. Though ants don’t eat wood, they bore
into it to make their nests, sometimes causing serious structural damage. Also, they nest in hollow doors, cracks and crevices,
furniture, wall voids, and termite galleries. New building infestation occurs when land-cleaning in the area disturbs existing
native colonies.
Excerpts from University of California Agriculture & Natural Resources, UCIPMOnline, “Statewide
Pest Management Program”.
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