US Green Building Council Exam LEED-AP-O+M Topic 3 Question 1 Discussion

Recommending LED lamps in an environmentally preferable purchasing policy is beneficial because LED lamps contain no mercury. Unlike some other lighting options, such as compact fluorescent lamps (CFLs) which can contain mercury, LEDs offer a safer alternative in terms of toxic substances. This makes LED lamps an environmentally friendly choice, reducing the risk of mercury pollution and facilitating easier, safer disposal or recycling of lamps at the end of their life cycle.

Reference: The LEED AP Operations + Maintenance documentation highlights the environmental and health benefits of selecting LED lighting, including the absence of mercury, which aligns with the goals of reducing hazardous substances in building environments.