EPA Lead Risk Assessor Exam Study Guide
(New 2026/ 2027 Update) Questions &
Answers {Grade A} 100% Correct (Verified
Solutions)
What was the purpose of the Title X of the Housing and Community Development Act? -
Correct answer To regulate and educate home-buyers on the presence of lead paint in
U.S. households built before 1978.
At what lead blood level does a child require chelation therapy? - Correct answer At or
above 45ug/dL
can lead be absorbed through the skin? - Correct answer no
where does excess lead get stored in the body? - Correct answer in bones
what are the first organs to be affected by lead ingestion? - Correct answer the liver
and kidneys
,can lead cross the placenta to an unborn baby? - Correct answer yes
The contractor must notify who the results of clearance testing and work performed? -
Correct answer only the contractors client (whoever hired the abatement crew)
- it's up to the client to notify tenants
lead based paint is primarily in this type of paint - Correct answer oil paint
What tool is best to be used for soil sampling?
A. A knife
B. Tweezers/forceps
C. A centrifuge tube
D. Gloved hands - Correct answer C. A centrifuge tube (coring)
What is a newel post? - Correct answer A newel post is the supporting post in a
staircase's railing
, How do you make spike samples? - Correct answer Spiked samples are manufactured
in a laboratory environment
1. If it is necessary to prepare spiked wipe samples, use the same brand of wet wipes
that will actually be used in the field.
2. Obtain a NIST Standard Reference Material containing a certified concentration of
lead, or a traceable secondary standard with a known amount of lead in dust.
3. Weigh out between 50 and 500 µg of lead (not total dust) to the nearest microgram.
4. Insert spiked sample randomly into sample set (1 for 50 samples)
How many spike samples are needed per # of samples? - Correct answer 1 per 50
samples analyzed
What is the purpose of spike samples? - Correct answer Spiked samples help show to
what extent the laboratory's analytical method is working, and help assess the
accuracy of the method and/or the analyst.
(New 2026/ 2027 Update) Questions &
Answers {Grade A} 100% Correct (Verified
Solutions)
What was the purpose of the Title X of the Housing and Community Development Act? -
Correct answer To regulate and educate home-buyers on the presence of lead paint in
U.S. households built before 1978.
At what lead blood level does a child require chelation therapy? - Correct answer At or
above 45ug/dL
can lead be absorbed through the skin? - Correct answer no
where does excess lead get stored in the body? - Correct answer in bones
what are the first organs to be affected by lead ingestion? - Correct answer the liver
and kidneys
,can lead cross the placenta to an unborn baby? - Correct answer yes
The contractor must notify who the results of clearance testing and work performed? -
Correct answer only the contractors client (whoever hired the abatement crew)
- it's up to the client to notify tenants
lead based paint is primarily in this type of paint - Correct answer oil paint
What tool is best to be used for soil sampling?
A. A knife
B. Tweezers/forceps
C. A centrifuge tube
D. Gloved hands - Correct answer C. A centrifuge tube (coring)
What is a newel post? - Correct answer A newel post is the supporting post in a
staircase's railing
, How do you make spike samples? - Correct answer Spiked samples are manufactured
in a laboratory environment
1. If it is necessary to prepare spiked wipe samples, use the same brand of wet wipes
that will actually be used in the field.
2. Obtain a NIST Standard Reference Material containing a certified concentration of
lead, or a traceable secondary standard with a known amount of lead in dust.
3. Weigh out between 50 and 500 µg of lead (not total dust) to the nearest microgram.
4. Insert spiked sample randomly into sample set (1 for 50 samples)
How many spike samples are needed per # of samples? - Correct answer 1 per 50
samples analyzed
What is the purpose of spike samples? - Correct answer Spiked samples help show to
what extent the laboratory's analytical method is working, and help assess the
accuracy of the method and/or the analyst.
