Uncovering hidden VOCs risks in metro halls: A non-targeted screening and health risk during extreme summer heatwaves

Key Points

• Health risks from VOCs increase during extreme summer heatwaves, especially in enclosed environments.
• The non-targeted screening method identified various volatile organic compounds (VOCs) linked to health issues.
• This observational analysis highlights the significance of monitoring VOC levels during extreme heat events.
• Results may help inform preventive measures to protect public health in urban transit areas.