855773667-LEED-v5-O-M-Reference-Guide-Launch-Edition-1 - Page 232
Extracted Content
| Parameter | Concentration limit (µg/m3) | Allowed test methods | Col4 |
|---|---|---|---|
| **Parameter ** | Concentration limit **(µg/m3) ** | Laboratory-based | Direct-reading instrument minimum specifications |
| Ozone | 0.07 ppm | ISO 13964 ASTM D5149-02 EPA-designated methods for ozone | Monitoring device with accuracy greater of 5 ppb or 20% of reading and resolution (5 min average data) +/- 5 ppb |
| Nitrogen dioxide (NO2) | 40 µg/m3 (21 ppb) | Monitoring device with measurement range of 0– 500 ppb, and lower detectable limit of 5 ppb | |
| TVOC* | N/A | Monitoring device that meets or exceeds building-grade sensor requirements |
NOTE: May not earn points for both targeted one-time air testing and continuous indoor air monitoring for the same parameter.
AND/OR
Option 3. Targeted One-Time Individual Volatile Organic Compounds Testing (2 points)
Test for all volatile organic compounds (VOCs) listed in Table 3 at least once during the 12month reporting period. Laboratories that conduct the tests must be accredited under ISO/IEC 17025 for the test methods they use.
Calculate the total volatile organic compounds (TVOC) value per EN 16516:2017; CDPH Standard Method v1.2 2017, Section 3.9.4 ; [104] or an alternative calculation method if a full method description is included in the test report. If the TVOC levels exceed 500 µg/m [3], investigate for potential issues by comparing the individual VOC levels to associated cognizant authority health-based limits. Correct any identified issues and retest.
Two points are available for demonstrating that all contaminants do not exceed the concentration limits listed in Table 3.
Table 3. One-time air testing of individual volatile organic compounds
| Contaminant (CAS#) | Concentration limit (µg/m3) | Allowed test methods (laboratory-based) |
|---|---|---|
| TVOC | Investigate and take corrective action if levels exceed 500 µg/m3. | ISO 16000-6; EPA TO-17; |
104 CDPH, “Standard Method for the Testing and evaluation of Volatile Organic Chemical Emissions From Indoor Sources Using Environmental Chambers, Version 1.2,” January 2017, https://www.cdph.ca.gov/programs/ccdphp/deodc/ehlb/iaq/cdph%20document%20library/cdph- iaq_standardmethod_v1_2_2017_ada.pdf.
U.S. Green Building Council LEED v5 Reference Guide for Operations and Maintenance, April 2025 Launch Edition 222