LEED Testing

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ALS Environmental provides analytical services to support the Leadership in Energy and Environmental Design (LEED) Green Building Rating System® for New Construction (LEED-NC) EQ Credit 3.2, Construction IAQ Management Plan Before Occupancy.

Credit may be earned by either flushing out the building prior to occupancy, or by conducting indoor air testing to show contaminant levels do not exceed the levels noted in the following table. In cases where time is limited before building occupancy, or when it may not be desirable to flush with outdoor air (i.e. high humidity or elevated outdoor VOC levels), indoor air testing may be appropriate. Samples should be collected in the breathing zone in each ventilation area throughout the building.

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LEED Testing Chart

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Analyzing TVOC for LEED Projects

LEED Testing - Seven World Trade Center

Seven World Trade Center was the first office building in New York City to earn LEED gold, according to Fast Company magazine.

Many analytical choices exist for measurement of TVOC for LEED projects. Practitioners must make an educated choice, consulting with their laboratory personnel where applicable, to decide which TVOC method may be most appropriate for their project. When deciding which sampling/analytical method to use, consideration must be given to the sample analysis/equipment rental costs, time frame/turnaround time needed, the building owner’s interest in having detailed chemical indoor air quality information, as well as which building materials (e.g. paints, carpet glues, finishes, cabinetry, etc.) are used. Also, if qualitative information is desired about which specific compounds comprise the TVOC value (e.g. for troubleshooting purposes if a building continues to fail to meet the 500 µg/m3 criteria), a GC/MS technique (thermal desorption or canisters) must be used. Until TVOC is defined more specifically, and/or until specific analytical methods are given in the LEED documentation, practitioners will have a wide range of options available to meet this credit requirement.

Read more about TVOC Testing for LEED Projects...

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