Soil sampling and analysis for volatile organic compounds.

Area of Science:

• Environmental Science
• Analytical Chemistry
• Geology

Background:

• Data quality concerns in soil sampling for volatile organic compounds (VOCs) are prevalent among environmental professionals.
• Remedial Project Managers (RPMs) and On-Scene Coordinators (OSCs) frequently inquire about optimal sampling devices and methodologies.

Purpose of the Study:

• To provide guidance on selecting effective sampling devices for VOCs in various soil matrices.
• To address specific questions regarding VOC loss during sample transfer, container selection, and preservation techniques.
• To improve the representativeness of soil samples for volatile organic analyses (VOA).

Main Methods:

• Guidance on selecting appropriate sampling devices for VOCs in different soil types and depths.
• Description of techniques for sample collection, handling, containerization, shipment, and storage.
• Focus on methods to minimize VOC losses during all stages of the sampling process.

Main Results:

• The paper offers specific recommendations for sampling devices and techniques.
• The described methods are designed to reduce volatile organic compound (VOC) losses.
• The techniques enhance the reliability and representativeness of soil samples for VOC analysis.

Conclusions:

• Implementing the recommended sampling, handling, and storage procedures significantly reduces VOC losses.
• These improved techniques lead to more accurate and reliable volatile organic analyses (VOA) results.
• The guidance is crucial for ensuring data integrity in environmental site assessments.