CASE STUDY: NATURAL GAS LEAKS Project Description: Odor Investigation Commercial Building Scope of Services: AET was contracted to evaluate a reported foul trash-like odor in a small commercial building. The odor was most prevalent in the morning hours. AET’s Investigative Approach/Sampling/Tools: 1. Odor Threshold: AET’s IAQ investigator perceived the odor more as a rotten egg smell and suspected a natural gas leak. Natural gas is a colorl

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