Integrated Approach for Comprehensive Screening of Indoor Semi-Volatile Organic Compounds via Passive Air Sampling...

Area of Science:

• Environmental Chemistry
• Analytical Chemistry
• Occupational Health

Background:

• Indoor semi-volatile organic compounds (SVOCs) present significant health risks.
• Conventional active sampling and targeted analysis methods have limitations for comprehensive SVOC profiling.
• Accurate assessment of indoor SVOCs is crucial for understanding exposure and managing health risks.

Purpose of the Study:

• To develop and validate an integrated approach for high-throughput screening and semi-quantitative evaluation of indoor SVOCs.
• To overcome the limitations of traditional methods for indoor air monitoring.
• To provide a practical tool for exposure assessment and risk-informed chemical management.

Main Methods:

• Utilized polydimethylsiloxane (PDMS) foam-based passive air samplers for both gas-phase and particle-bound SVOCs.
• Calibrated passive samplers under real-world indoor conditions to determine sampling rates.
• Developed predictive models and a reference-compound-based semi-quantitative strategy for non-targeted analysis.

Main Results:

• Demonstrated strong agreement between passive and active sampling for both gas-phase and particle-associated SVOCs in a field study.
• Successfully implemented a high-throughput screening method for indoor SVOCs.
• Established a reliable semi-quantitative strategy for non-targeted SVOC analysis.

Conclusions:

• The integrated PDMS passive sampling and non-targeted analysis approach enhances indoor air monitoring capabilities.
• This method offers broader chemical coverage and semi-quantitative analysis for SVOCs.
• The approach provides a practical tool for improved exposure assessment and chemical risk management in indoor environments.