| COLLECTING
DUST SAMPLES FOR LEAD TESTING | | WHAT
you will need: - Clean
plastic bags with a ziplock closure
- Unpowdered
disposable latex gloves (if available)
- Tape
measure or ruler
- Baby wipes
- Clean
hands
If you are going to take
several samples, be sure to wash your hands before collecting samples and use
a clean pair of disposable latex gloves for each sample. WHERE
to sample: Areas in your home
where your children normally play should be the first to be tested. The
surfaces that you test should be smooth and non-porous, like linoleum, painted
wood, or wood floors. Good places to test include: - Entryway
(including porches).
- Children's principal
play area (usually the TV room or living room).
- Children's
bedrooms.
- Kitchen.
- Bathroom
WITHIN
these rooms, places that are likely to have high dust levels are:
- Floors near friction or impact spots
(usually doors and windows)
- Floors
near areas with deteriorated paint.
- Interior
window sills (of frequently opened windows).
- Window
troughs (of frequently opened windows).
HOW
to
sample dust: - Outline
the area to be wiped with tape or a template. The preferred area is a square
12 inches by 12 inches (one square foot). For places where wipe samples are taken
and are not this big (like a window sill), measure the dimensions for lab use.
Results will be reported as micrograms per square foot (µg/ft2).
- Remove a wipe from the dispenser and
throw it away.
- Put on disposable,
non-powdered, latex gloves.
- Remove
another wipe and place it on the surface,but withi the area you taped off.
Wipe the area from side to side "S" motions. Fold the wipe in half by
picking it up in the middle so that the just-wiped side is folded into itself
leaving an unused side outward and complete a second pass going from top to bottom.
- Fold the wipe (contaminated side facing
inward) and place it in a sealable plastic bag. If there is gross debris such
as paint chips, try not to lose any material collected in the wipe.
- Label
the bag and record information (including sampling area measurements) on a piece
of paper for your own records
- Place
a clean , unused wipe into a clean plastic bag and label the bag as a Field Blank.
This will allow you to determine if there is any lead in the materials you are
using to collect the samples.
Send
the samples to a lab certified by the California Department of Health Services.
A list of certified labs is available from your local health department or our
Program's Information Line at 1-800-B-LEAD-SAFE.
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