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What You Should Know
About Lead Based Paint in Your Home: Safety Alert
How to
spot lead paint in your home; what you should do.
Lead-based paint is
hazardous to your health.
Lead-based paint is a
major source of lead poisoning for children and can also affect
adults. In children, lead poisoning can cause irreversible brain
damage and can impair mental functioning. It can retard mental and
physical development and reduce attention span. It can also retard
fetal development even at extremely low levels of lead. In adults, it
can cause irritability, poor muscle coordination, and nerve damage to
the sense organs and nerves controlling the body. Lead poisoning may
also cause problems with reproduction (such as a decreased sperm
count). It may also increase blood pressure. Thus, young children,
fetuses, infants, and adults with high blood pressure are the most
vulnerable to the effects of lead.
Children should be
screened for lead poisoning.
In communities where the
houses are old and deteriorating, take advantage of available
screening programs offered by local health departments and have
children checked regularly to see if they are suffering from lead
poisoning. Because the early symptoms of lead poisoning are easy to
confuse with other illnesses, it is difficult to diagnose lead
poisoning without medical testing. Early symptoms may include
persistent tiredness, irritability, loss of appetite, stomach
discomfort, reduced attention span, insomnia, and constipation.
Failure to treat children in the early stages can cause long-term or
permanent health damage.
The current blood lead
level which defines lead poisoning is 10 micrograms of lead per
deciliter of blood. However, since poisoning may occur at lower levels
than previously thought, various federal agencies are considering
whether this level should be lowered further so that lead poisoning
prevention programs will have the latest information on testing
children for lead poisoning.
Consumers can be
exposed to lead from paint.
Eating paint chips is
one way young children are exposed to lead. It is not the most common
way that consumers, in general, are exposed to lead. Ingesting and
inhaling lead dust that is created as lead-based paint
"chalks," chips, or peels from deteriorated surfaces can
expose consumers to lead. Walking on small paint chips found on the
floor, or opening and closing a painted frame window, can also create
lead dust. Other sources of lead include deposits that may be present
in homes after years of use of leaded gasoline and from industrial
sources like smelting. Consumers can also generate lead dust by
sanding lead-based paint or by scraping or heating lead-based paint.
Lead dust can settle on
floors, walls, and furniture. Under these conditions, children can
ingest lead dust from hand-to-mouth con- tact or in food. Settled lead
dust can re-enter the air through cleaning, such as sweeping or
vacuuming, or by movement of people throughout the house.
Older homes may
contain lead based paint.
Lead was used as a
pigment and drying agent in "alkyd" oil based paint.
"Latex" water based paints generally have not contained
lead. About two-thirds of the homes built before 1940 and one-half of
the homes built from 1940 to 1960 contain heavily-leaded paint. Some
homes built after 1960 also contain heavily-leaded paint. It may be on
any interior or exterior surface, particularly on woodwork, doors, and
windows. In 1978, the U.S. Consumer Product Safety Commission lowered
the legal maximum lead content in most kinds of paint to 0.06% (a
trace amount). Consider having the paint in homes constructed before
the 1980s tested for lead before renovating or if the paint or
underlying surface is deteriorating. This is particularly important if
infants, children, or pregnant women are present.
Consumers can have
paint tested for lead.
There are do-it-yourself
kits available. However, the U.S. Consumer Product Safety Commission
has not evaluated any of these kits. One home test kit uses sodium
sulfide solution. This procedure requires you to place a drop of
sodium sulfide solution on a paint chip. The paint chip slowly turns
darker if lead is present. There are problems with this test, however.
Other metals may cause false positive results, and resins in the paint
may prevent the sulfide from causing the paint chip to change color.
Thus, the presence of lead may not be correctly indicated. In addition
the darkening may be detected only on very light-colored paint.
Another in-home test
requires a trained professional who can operate the equipment safely.
This test uses X-ray fluorescence to determine if the paint contains
lead. Although the test can be done in your home, it should be done
only by professionals trained by the equipment manufacturer or who
have passed a state or local government training course, since the
equipment contains radioactive materials. In addition, in some tests,
the method has not been reliable.
Consumers may choose to
have a testing laboratory test a paint sample for lead. Lab testing is
considered more reliable than other methods. Lab tests may cost from
$20 to $50 per sample. To have the lab test for lead paint, consumers
may:
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Get sample
containers from the lab or use re-sealable plastic bags. Label the
containers or bags with the consumer's name and the location in
the house from which each paint sample was taken. Several samples
should be taken from each affected room (see HUD Guidelines
discussed below).
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Use a sharp knife to
cut through the edges of the sample paint. The lab should tell you
the size of the sample needed. It will probably be about 2 inches
by 2 inches.
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Lift off the paint
with a clean putty knife and put it into the container. Be sure to
take a sample of all layers of paint, since only the lower layers
may contain lead. Do not include any of the underlying wood,
plaster, metal, and brick.
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Wipe the surface and
any paint dust with a wet cloth or paper towel and discard the
cloth or towel.
The U.S. Department of
Housing and Urban Development (HUD) recommends that action to reduce
exposure should be taken when the lead in paint is greater than 0.5%
by lab testing or greater than 1.0 milligrams per square centimeter by
X-ray fluorescence. Action is especially important when paint is
deteriorating or when infants, children, or pregnant women are
present. Consumers can reduce exposure to lead-based paint.
If you have lead-based
paint, you should take steps to reduce your exposure to lead. You can:
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Have the painted
item replaced. You can replace a door or other easily removed
item if you can do it without creating lead dust. Items that are
difficult to remove should be replaced by professionals who will
control and contain lead dust.
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Cover the
lead-based paint. You can spray the surface with a sealant or
cover it with gypsum wallboard. However, painting over lead-based
paint with non-lead paint is not a long-term solution. Even though
the lead-based paint may be covered by non-lead paint, the
lead-based paint may continue to loosen from the surface below and
create lead dust. The new paint may also partially mix with the
lead-based paint, and lead dust will be released when the new
paint begins to deteriorate.
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Have the
lead-based paint removed.Have professionals trained in
removing lead-based paint do this work. Each of the paint-removal
methods (sandpaper, scrapers, chemicals, sandblasters, and torches
or heat guns) can produce lead fumes or dust. Fumes or dust can
become airborne and be inhaled or ingested. Wet methods help
reduce the amount of lead dust. Removing moldings, trim, window
sills, and other painted surfaces for professional paint stripping
outside the home may also create dust. Be sure the professionals
contain the lead dust. Wet-wipe all surfaces to remove any dust or
paint chips. Wet-clean the area before re-entry.
You can remove a
small amount of lead-based paint if you can avoid creating any
dust. Make sure the surface is less than about one square foot
(such as a window sill). Any job larger than about one square foot
should be done by professionals. Make sure you can use a wet
method (such as a liquid paint stripper).
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Reduce lead dust
exposure. You can periodically wet mop and wipe surfaces and
floors with a high phosphorous (at least 5%) cleaning solution.
Wear waterproof gloves to prevent skin irritation. Avoid
activities that will disturb or damage lead based paint and create
dust. This is a preventive measure and is not an alternative to
replacement or removal.
Professionals are
available to remove, replace, or cover lead-based paint.
Contact your state and
local health departments lead poisoning prevention programs and
housing authorities for information about testing labs and contractors
who can safely remove lead-based paint.
The U.S. Department of
Housing and Urban Development (HUD) prepared guidelines for removing
lead-based paint which were published in the Federal Register, April
18, 1990, page 1455614614. Ask contractors about their qualifications,
experience removing lead-based paint, and plans to follow these
guidelines.
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Consumers should
keep children and other occupants (especially infants, pregnant
women, and adults with high blood pressure) out of the work area
until the job is completed.
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Consumers should
remove all food and eating utensils from the work area.
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Contractors should
remove all furniture, carpets, and drapes and seal the work area
from the rest of the house. The contractor also should cover and
seal the floor unless lead paint is to be removed from the floor.
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Contractors should
assure that workers wear respirators designed to avoid inhaling
lead.
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Contractors should
not allow eating or drinking in the work area. Contractors should
cover and seal all cabinets and food contact surfaces.
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Contractors should
dispose of clothing worn in the room after working. Workers should
not wear work clothing in other areas of the house. The contractor
should launder work clothes separately.
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Contractors should
clean up debris using special vacuum cleaners with HEPA (high
efficiency particulate air) filters and should use a wet mop after
vacuuming.
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Contractors should
dispose of lead-based paint waste and contaminated materials in
accordance with state and local regulations.
Government officials and
health professionals continue to develop advice about removing
lead-based paint. Watch for future publications by government
agencies, health departments, and other groups concerned with
lead-paint removal and prevention of lead poisoning.
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