Unit 6: Indoor Environmental Hazards
According to the EPA, at what level does radon become a health concern requiring
mitigation?
1.4 picocuries per liter of air
2.4 picocuries per liter of air
4.0 picocuries per liter of air
.04 picocuries per liter of air - ANS-4.0 picocuries per liter of air
According to the inspector in the video, which parts of the septic system are inspected?
House sewer
Septic tank
Distribution box
Absorption field/seepage - ANS-Septic tank
Distribution box
Absorption field/seepage
As a licensee, what requirements does the Residential Lead-Based Paint Hazard Reduction
Act place on you when working with clients interested in buying or selling a home built before
1978? - ANS-Required: Disclose any known lead hazards in the home
Ensure a lead warning statement is included with the sales agreement
Ensure seller clients provide any records they have of lead assessments or testing
Provide a lead safety pamphlet to prospective buyers
Not Required:
place a lead warning sticker on the home's exterior within 10 feet of the front door
Asbestos was frequently used in manufacturing because of its fire-retardant and insulating
qualities, and because it was strong. However, due to the health consequences of asbestos,
it's no longer used. You may come across items containing asbestos when looking at older
properties. Which of these items could contain asbestos? - ANS-Rocks and soil
Flooring
Walls
Roofs
Heating systems
Carbon monoxide is a byproduct of what?
Combustion
Radon
Uranium
Asbestos - ANS-Combustion
, Children and pregnant women are especially vulnerable to poisoning caused by what
hazard?
Asbestos
Oil
Pigment
Lead - ANS-Lead
Dizziness and nausea are the first signs of what?
Carbon monoxide poisoning
Radon exposure
Asbestosis
Good air quality - ANS-Carbon monoxide poisoning
How can you determine if there's asbestos in a home? - ANS-Hire an accredited individual to
test for asbestos
If radon occurs naturally in the environment, you may think that nothing can be done. First,
radon may not actually be present in the home. Determining its presence is the first step.
Then there are several actions that can be taken to deal with radon.
A Buy a radon detection kit and test the home.
B Hire a professional to test for the presence of radon.
C Seal any cracks or spaces in concrete slab, foundation walls, and chimney.
D Install a system to vent and filter radon out of the home.
E Replace any pre-1978 materials used in the construction of the home. - ANS-A. Action that
can be taken
B. Action that can be taken
C. Action that can be taken; Soil and water may contain radon and can enter the house
through cracks and open spaces. Sealing these may help reduce radon levels
D. Action that can be taken
E. Action that DOESN'T help; radon occurs naturally in the environment and was not used in
the manufacturing of construction products. Replacing these items will likely not reduce
radon levels
If you were working with a family purchasing a home built prior to 1978, how would you
explain their options regarding renovations to their home or making the home lead-free?
A This work is done with the intention of making the home lead-free.
B This type of work requires a lead renovator.
According to the EPA, at what level does radon become a health concern requiring
mitigation?
1.4 picocuries per liter of air
2.4 picocuries per liter of air
4.0 picocuries per liter of air
.04 picocuries per liter of air - ANS-4.0 picocuries per liter of air
According to the inspector in the video, which parts of the septic system are inspected?
House sewer
Septic tank
Distribution box
Absorption field/seepage - ANS-Septic tank
Distribution box
Absorption field/seepage
As a licensee, what requirements does the Residential Lead-Based Paint Hazard Reduction
Act place on you when working with clients interested in buying or selling a home built before
1978? - ANS-Required: Disclose any known lead hazards in the home
Ensure a lead warning statement is included with the sales agreement
Ensure seller clients provide any records they have of lead assessments or testing
Provide a lead safety pamphlet to prospective buyers
Not Required:
place a lead warning sticker on the home's exterior within 10 feet of the front door
Asbestos was frequently used in manufacturing because of its fire-retardant and insulating
qualities, and because it was strong. However, due to the health consequences of asbestos,
it's no longer used. You may come across items containing asbestos when looking at older
properties. Which of these items could contain asbestos? - ANS-Rocks and soil
Flooring
Walls
Roofs
Heating systems
Carbon monoxide is a byproduct of what?
Combustion
Radon
Uranium
Asbestos - ANS-Combustion
, Children and pregnant women are especially vulnerable to poisoning caused by what
hazard?
Asbestos
Oil
Pigment
Lead - ANS-Lead
Dizziness and nausea are the first signs of what?
Carbon monoxide poisoning
Radon exposure
Asbestosis
Good air quality - ANS-Carbon monoxide poisoning
How can you determine if there's asbestos in a home? - ANS-Hire an accredited individual to
test for asbestos
If radon occurs naturally in the environment, you may think that nothing can be done. First,
radon may not actually be present in the home. Determining its presence is the first step.
Then there are several actions that can be taken to deal with radon.
A Buy a radon detection kit and test the home.
B Hire a professional to test for the presence of radon.
C Seal any cracks or spaces in concrete slab, foundation walls, and chimney.
D Install a system to vent and filter radon out of the home.
E Replace any pre-1978 materials used in the construction of the home. - ANS-A. Action that
can be taken
B. Action that can be taken
C. Action that can be taken; Soil and water may contain radon and can enter the house
through cracks and open spaces. Sealing these may help reduce radon levels
D. Action that can be taken
E. Action that DOESN'T help; radon occurs naturally in the environment and was not used in
the manufacturing of construction products. Replacing these items will likely not reduce
radon levels
If you were working with a family purchasing a home built prior to 1978, how would you
explain their options regarding renovations to their home or making the home lead-free?
A This work is done with the intention of making the home lead-free.
B This type of work requires a lead renovator.
