What must a project team do prior to phasing out CFC-based refrigerants?

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试卷: LEED GA模拟题C[查看]
What must a project team do prior to phasing out CFC-based refrigerants?
A: Select a replacement refrigerant with a long atmospheric lifetime
B: Select a replacement refrigerant with a nonzero Ozone Depletion Potential (ODP)
C: Vent any remaining CFCs for disposal to the air prior to decommissioning any equipment
D: Reduce the annual leakage of CFCs to 5% or less using EPA Clean Air Act procedures

参考答案: D

本题解释:
Notes:

Reference: LEED 2009 for New Construction and Major Renovations Rating System

Refrigerants should be selected with short atmospheric lifetimes, not long atmospheric lifetimes.
Refrigerants that are best for the environment have zero ODP. LEED doesn\'t require selecting refrigerants with zero ODP, but suggests refrigerants be chosen that have low/no ODP.

Venting the CFCs to the air is what you don\'t want to do. CFCs in the atmosphere are what cause ozone depletion.

The question asks what must the project team do.

Before the phase-out begins, LEED requires reducing the annual leakage of CFCs to 5% or less using EPA Clean Air Act procedures.