MR Prerequisite: PBT Source Reduction – Mercury
Intent
For healthcare projects, LEED includes an additional prerequisite focused on reducing mercury, a persistent bioaccumulative toxin (PBT) with significant environmental and human health impacts.
The goal is to:
Requirements
Healthcare projects must:
Projects must also comply with established limits on mercury content in lighting products.
Common Sources
This includes common sources such as:
Why This Matters
Healthcare facilities have a higher potential for exposure to hazardous materials. This prerequisite ensures that material choices protect both patients and the environment, aligning with broader goals of human health and safety.
Official FAQs
What does PBT stand for?
A. Persistent Building Toxins
B. Potential Bioactive Toxins
C. Persistent Bioaccumulative Toxins
D. Process-Based Toxins
✅ Answer: C
B. Potential Bioactive Toxins
C. Persistent Bioaccumulative Toxins
D. Process-Based Toxins
✅ Answer: C
Which material is specifically targeted in this prerequisite?
A. Lead
B. Mercury
C. Asbestos
D. VOCs
✅ Answer: B
B. Mercury
C. Asbestos
D. VOCs
✅ Answer: B
A healthcare project continues to use mercury-containing devices without a reduction plan. Does it meet LEED MR Prerequisite: PBT Source Reduction – Mercury requirements?
A. Yes
B. No
✅ Answer: B
B. No
✅ Answer: B
A healthcare project replaces mercury lamps with low-mercury alternatives and establishes recycling procedures. Does it comply?
A. Yes
B. No
✅ Answer: A
B. No
✅ Answer: A
Why is mercury reduction specifically emphasized in healthcare projects?
A. Higher construction waste
B. Increased risk to patients and environment
C. Energy savings
D. Lower cost
✅ Answer: B
B. Increased risk to patients and environment
C. Energy savings
D. Lower cost
✅ Answer: B
Which of the following is MOST likely a source of mercury in healthcare facilities?
A. Concrete
B. Fluorescent lamps
C. Steel framing
D. Insulation
✅ Answer: B
B. Fluorescent lamps
C. Steel framing
D. Insulation
✅ Answer: B
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