Can augers be used to sample for volatile organic compounds (VOCs)?

Prepare for the Bioenvironmental Engineering Exam. Use multiple-choice questions and detailed explanations to study efficiently for your exam and enhance knowledge in environmental safety and engineering.

Multiple Choice

Can augers be used to sample for volatile organic compounds (VOCs)?

Explanation:
VOCs are measured by capturing the gas phase where these compounds actually reside, not by collecting solid soil material. An auger is designed to remove soil cores and bring solid samples back for analysis. It does not sample the air or pore-gas within the soil in a way that yields a representative VOC concentration, and it can even disturb or contaminate VOCs through degassing or from drilling fluids and the auger itself. For VOCs, use dedicated air or soil-gas sampling methods—such as sorbent tubes or evacuated canisters for ambient air, or soil-gas probes and headspace techniques for soil VOCs. So augers are not used to sample VOCs.

VOCs are measured by capturing the gas phase where these compounds actually reside, not by collecting solid soil material. An auger is designed to remove soil cores and bring solid samples back for analysis. It does not sample the air or pore-gas within the soil in a way that yields a representative VOC concentration, and it can even disturb or contaminate VOCs through degassing or from drilling fluids and the auger itself. For VOCs, use dedicated air or soil-gas sampling methods—such as sorbent tubes or evacuated canisters for ambient air, or soil-gas probes and headspace techniques for soil VOCs. So augers are not used to sample VOCs.

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