Rating System

LEED BD+C: New Construction

Rating System Version

v2 - LEED 2.0

Inquiry

We are developing IAQ baseline testing procedures for our project. The LEED-referenced document cited under EQ3.2 is for a specific project with specific conditions. We have attempted to be consistent with the referenced project document and would like to have USGBC\'s opinion. Please confirm whether or not the following IAQ Baseline procedures will qualify for a LEED credit under version 2.1, credit EQ 3.2? IAQ BASELINE TESTING PROCEDURE A. Coordinate with commissioning. Upon verification of HVAC system operation, perform baseline IAQ testing. 1. Perform testing for minimum 3 locations in each air handling zone. Perform in the breathing zone; between 4\'\' and 7\'\' from the floor. 2. Collect air samples on three consecutive days during normal business hours (between the hours of 8:00 am and 5:00 pm) with building operating at normal HVAC rates. Average the results of each three-day test cycle to determine compliance or non- compliance of indoor air quality for each air handling zone tested. 3. Sample and record outside air levels of formaldehyde and TVOC contaminants at outside air intake of each respective air handling unit simultaneously with indoor tests to establish basis of comparison for these contaminant levels. B. Baseline IAQ shall conform to the following standards and limits: 1. Carbon Monoxide: Note to exceed 9 ppm. 2. Carbon Dioxide: Set points not to exceed 530 ppm higher than outdoor ambient levels. Assess indoor Carbon Dioxide concentrations in accordance with ASTM D6245. 3. Airborne Mold and Mildew: Simultaneous indoor and outdoor readings. 4. VOCs and particulates: Monitor VOCs (volatile organic compounds) in indoor air in accordance with ASTM D6345. Indoor room air concentration levels, emission rates, and qualities of the listed contaminants shall not exceed the following limits. The levels do not account for contributions from office furniture, occupants, and occupant activities. MAXIMUM INDOOR AIR CONCENTRATION STANDARDS Indoor Contaminants: Allowable Air Concentration Levels 1)Formaldehyde: <20 micrograms per cubic meter above outside air concentrations. 2)Total Volatile Organic Compounds (TVOC): <200 micrograms per cubic meter above outside air concentrations. 3)Four-Phenylcyclohexene (4-PC): <3 micrograms per cubic meter 4)Total Particulates (PM): <20 micrograms per cubic meter 5)Regulated Pollutants: