I am seeking the two points for the IAQ Assessment by doing the Air Testings. Am I seeking impossible points if the project does not include the point for Low-Emitting Materials?

While looking into Option 2- Air Testing, a member of our project team presented the following questions as they believe this method is not achievable at this time: 1) Are there currently any labs

Recognizing the issues already under discussion regarding the analytical methods and the maximum contaminant levels presented in LEED v4...

Table 1 listed the maximum allowable concentrations for target chemicals but except formaldehyde. Why is formaldehyde an exception? Where is the 27 ppb from?