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Materials
Questions
and Answers about
Testing
Your Home For Lead In Paint and Soil
California Department of Health Services
Childhood Lead Poisoning Prevention Branch
1515 Clay St. Suite 1801
Oakland, CA 94612
Lead Hotline - 510-622-5006
FAX - 510-622-5002
On this page...
Why
should I test my home for lead?
If you have children, lead in your home can cause serious long term health and behavior problems for them. Lead is a hazard to children under 6 years of age in particular. Lead in paint, dust and soil is a problem for children because it gets in their bodies when they put their fingers, toys or paint chips or dust into their mouths. Lead can also harm a pregnant woman and her developing fetus.
You should consider
testing for lead if there are children in your home and...
-
your house was built before
1978, or
-
your house is near a freeway
or busy roadway where leaded gasoline and its exhaust may have polluted
the soil with lead.
If your house was built
before 1978, it is especially important to test for lead if...
-
your house has peeling
or chipping paint;
-
your house has bare soil
in the yard where children play;
-
you plan to repaint, remodel
or renovate the house;
-
a child living in the
house has had a blood lead test result of 10 micrograms
per deciliter (µg/dl) or higher; or
-
your house was built before
1950 -- such homes almost always have some lead-based paint.
If you are buying or renting
a home...
-
federal laws require the
seller to give you an informational pamphlet and to tell you about
any known lead hazards in the home. (These federal laws also give
home buyers 10 days to inspect for lead. The law does not require
landlords to allow a renter to inspect for lead.)
Where
should I test for lead?
The most important
areas to test for lead are those areas where children spend a lot of time,
such as bedrooms, playrooms, kitchens, and play-yards. It is especially
important to test these areas if there is bare soil or if paint is peeling
or chipping.
You should also test
places where you plan to repaint or remodel. Test several different
spots. If you are testing paint, test each different paint color.
If you are testing soil, test different bare soil areas.
Some good places
to test for lead-based paint are...
-
window frames and sills
-
doors, door jambs and
thresholds
-
trim and siding
-
kitchen cabinets
-
painted children's furniture
-
baseboards
Some good places
to test for lead-contaminated soil are...
-
around the foundation
of the house
-
where children play
-
unpaved pathways
-
under windows or walls
with peeling or chipping paint
-
where pets play or rest
How
do I test for lead?
There are 2 recommended
ways to test your home for lead. Whenever you test for lead, it is
important to find out how much lead is in the paint or soil you test.
-
Get a laboratory analysis:
For $25 - $50, you can have a paint chip or soil sample tested by an accredited
laboratory and get reliable results in 24 - 48 hours. Call the
laboratory for details before you mail them your samples. Keep a
sketch or list of the locations where you take samples.
-
Taking A Paint Sample:
Tape a clean, plastic sandwich bag underneath some paint you want to test.
Use a clean, sharp chisel or scraper to scrape a tablespoon size amount
of paint into the bag. Try to scrape off all the layers of paint,
not just the top coats -- lead is often in the bottom layer of paint.
Try not to scrape off any of the wood or plaster that is under the paint.
Seal the bag and label it. On the label, write where the sample was
taken (example: Sample #1 - kitchen window sill). Wash your
hands and the scraper with soap and water after each paint sample you take.
-
Taking A Soil Sample:
Using a clean trowel or large spoon, scoop about half a cup of soil from
the top inch of the bare soil you want to test. Try not to scoop
up plant leaves, roots, or other large pieces of debris. If there
are paint chips in the soil, it is OK to include them in the sample.
Place the soil into a clean, plastic sandwich bag. Seal the bag and
label it. On the label, write where the sample was taken (example:
Sample # 2 - under children's swing set). Wash your hands and the
spoon with soap and water after each soil sample you take.
-
Hire a Certified Inspector/Assessor:
You can hire a State-certified inspector/assessor
to inspect your home for lead. Obtain at least two or three bids for a cost estimate of the work. Ask the inspector/assessor to write
you a risk assessment report that will tell you if the lead levels in your home
represent a hazard and what options you have for dealing with it.
The certified inspector/assessor
can test your paint with an XRF (x-ray fluorescence) machine, for immediate
results. He or she can also send paint, dust and soil samples to
a laboratory for testing. Make sure the inspector/assessor gives you
a sketch or a description of where the samples were taken.
For a list of State-certified inspector/assessors, go to the State-certified inspector/assessor page on this site.
How
can I tell if I have lead above the hazard level in my paint or soil?
The table below shows
hazard levels of lead in paint, soil and dust, as determined by the California Department of Health Services (DHS), the
U.S. Environmental Protection
Agency (EPA) and the U.S. Department
of Housing & Urban Development (HUD).
Lead in Paint
Hazard Levels
lab test results of 5,000 ppm (parts
per million) or 0.5% or more (by weight)
XRF test results of 1.0 milligrams of
lead per square centimeter (1.0 mg/cm2) or more
|
Lead in Bare
Soil
Hazard Levels
lab test results of 400 ppm or
more in bare soil in areas where children play
lab test results of 1,000 ppm or more in all other areas
|
Lead in Dust
Hazardous Levels
dust from interior floors with 50 micrograms of lead per square foot (50 µg/ft2) or more
dust from interior horizontal window surfaces with 250 micrograms of lead per square foot (250 µg/ft2) or more
dust from exterior floors and exterior horizontal window surfaces with 800 micrograms of lead per square foot (800 µg/ft2) or more
|
No matter what your test results are, the condition
of your house's paint and soil is important. If the soil is covered
by grass, bushes or permanent ground coverings, even high levels of lead
in the soil may not be hazardous to children. If you are not planning to remodel and the paint is in good condition -- not chipping or peeling
-- it may not be a lead hazard, even if it contains high levels of lead.
If the paint is peeling or chipping, if it is on doors and windows where
normal wear and tear causes chipping, or if you plan to remodel the area,
you should take steps to prevent the lead from poisoning your children.
Lead test results are only as good as your testing procedures.
The results will not tell you about the lead content of painted surfaces
or soil that you did not test. Hire a State-certified
inspector/assessor to make sure you get accurate testing results.
Can
I just use a lead test kit from a paint store?
Kits for testing paint
and ceramics are available at most paint and hardware stores for $8 - 10.
They have chemicals that change color when rubbed against a surface that
contains lead. These kits can only tell you if there is lead in the paint you tested. They will not tell you how much lead is in the
paint or if it is a hazard. You can not use them to test
for lead in soil.
If you decide
to use a lead test kit to test your paint, follow the directions on the
package very carefully. Be sure to test the bottom layers of paint.
To do this, use a sharp knife to cut a slanted notch through all the paint
layers on the spot you want to test. Test all the layers of paint
in the notch. Look for the color change indicated by the test kit.
If your house
was built before 1978 and your lead test kit comes out negative (does not
change color), you should have an accredited lab test the paint to make
sure the lead test kit worked properly.
What
should I do next?
If the lead in your paint or soil exceeds the hazard levels listed above, you should...
-
Contact your family doctor
or your local health department
and get blood lead tests for your children who are 6 years of age or under.
-
Find out about everyday
things you can do to prevent lead poisoning.
-
Consider hiring a State-certified
lead inspector/assessor to inspect your home for lead.
-
Hire a State-certified
lead contractor to reduce the lead hazards in your home and yard.
-
If you plan to repaint
or remodel your home, hire a State-certified lead contractor. If
you plan to do the work yourself, get the EPA's free how-to booklet, Reducing
Lead Hazards When Remodeling Your Home and contact your local health
department to find out about lead safe work practices to prevent poisoning yourself
or your children.