SUSTAINABLE BUILDINGS

Asset Classes

Focus Area

Indoor Air Quality and Hazards

Topic

Ventilation and Exhaust

Question #

I2.4 – CO Monitoring in Parking Areas

Question

Do carbon monoxide (CO) concentrations in enclosed parking garages and loading docks meet minimum thresholds?

Applicability

Applicable to all buildings (systems or equipment in the owner or landlord’s control)

Answer

Select one of the following:

    • Yes – CO is tested
    • Yes – CO sensors installed
    • No
    • Not Applicable – there are no enclosed parking garages of loading docks at the building

Description

Carbon monoxide emissions from internal combustion vehicles can present a serious health and safety risk. Monitoring carbon monoxide within enclosed parking areas and loading docks can help identify exposures before they exceed current occupational exposure limits.

The current ACGIH Threshold Limit Values for carbon monoxide exposure is 25 ppm.

Requirements

    1. If IAQ testing data is available, provide representative sampling that:
      • Demonstrates that CO levels are below 25 ppm
      • Is conducted at least annually and captures high traffic periods
    2. If sensors are installed:
      • Demonstrate that concentrations of carbon monoxide are monitored continuously
      • Provide sensor details (electrochemical or metal oxide semi-conductor with a resolution of 0.1 ppm)
      • Show that sensors are calibrated in accordance with manufacturer’s specifications
      • Confirm that CO levels are below 25 ppm. Provide sensor logs and/or IAQ testing data for these locations

Documentation

    • IAQ testing results or
    • IAQ sensor data

Adapted BB3 Question

Question 03.04.06 – Is the enclosed parking garage and/or gas/fuel-fired equipment room ventilated?

Suggested Lead

In-house, with third-party support

References

Crosswalk

TBD

Other Notes

None

Scoring

1 or 2 Points

Verification