SEE LEED INDOOR AIR QUALITY CHART BELOW:
Contaminant |
Maximum Allowed Concentration |
Sampling / |
Media |
Flow Rate |
Total Volume |
Lab MRL |
Preserve / |
---|---|---|---|---|---|---|---|
Formaldehyde | 50 ppbV 27 ppbV |
EPA TO-11A |
DNPH Silica Gel tube |
200 mL/min |
48L | 1.7ppbV | Keep tubes cold (freezer) before use. Ship samples cold (4°C) overnight to lab/14 days until extraction |
Particulates (PM10) | 50 µg/m3 |
handheld meter |
NA |
NA |
NA |
NA |
NA |
Total Volatile Organic Compounds (TVOC) * | 500 µg/m3 |
EPA TO-17 |
Thermal Desorption tube | 50 mL/min |
12L | 50-100 µg/m3 | Tubes may be stored at room temperature before use. Ship samples cold (4°C) overnight to lab/28 days until analysis |
4-Phenylcyclohexene (4-PCH) ** |
6.5 µg/m3 |
EPA TO-17 |
Thermal Desporption tube |
50 mL/min |
12L | 0.83 µg/m3 | Tubes may be stored at room temperature before use. Ship samples cold (4°C) overnight to lab/28 days until analysis |
Carbon Monoxide (CO) | 9 ppmV and no greater than 2 ppmV above outdoor levels |
handheld meter |
NA |
NA |
NA |
NA |
NA |
* Other sampling/analytical methods are available for TVOC. Please call the laboratory to discuss benefits and drawbacks of the various available methods.
** This test is only required if carpets and fabrics with styrene butadiene rubber (SBR) latex backing material are installed as part of the building systems.
Please contact us to discuss implementing LEED standards in your construction or renovation project or performing an assessment to demonstrate compliance.