[Characterization of Volatile Organic Compounds from Cooking Emissions]

Area of Science:

• Environmental Chemistry
• Analytical Chemistry

Context:

• Cooking is a major source of volatile organic compounds (VOCs) impacting human health and air quality.
• Understanding cooking emissions is crucial for mitigating indoor and outdoor air pollution.

Purpose:

• To analyze the characteristics and chemical composition of VOC emissions from various cooking conditions.
• To quantify VOC emission factors for different oils, seasonings, and dishes.

Summary:

• Gas chromatography-mass spectrometry (GC-MS) was used to study VOCs from simulated cooking with varying oils, seasonings, and dishes.
• Emission factors for oils ranged from 0.81-2.53 g·kg⁻¹, dominated by halogenated hydrocarbons and alkanes.
• Seasonings had higher emission factors (25.06-40.18 g·kg⁻¹), primarily alkanes. Chili fried meat emitted more VOCs than tomato scrambled eggs.

Impact:

• Identifies specific VOCs emitted during cooking, aiding in health risk assessment.
• Provides quantitative data on emission factors for different cooking inputs.
• Highlights significant differences in emissions based on dish type, informing targeted pollution control strategies.