Volatile Organic Compounds and Health Implications
Summary
Volatile organic compounds (VOCs) are a diverse group of carbon-based chemicals that readily evaporate at ambient temperatures. They originate from both outdoor sources such as vehicle exhaust and industrial processes, and indoor sources including cleaning agents, fragranced consumer products and building materials. Chronic and acute exposure to elevated concentrations of VOCs has been linked to a spectrum of health outcomes, ranging from ocular and respiratory irritation to systemic effects on the nervous, immune and endocrine systems. Inhalation remains the principal route of entry, although dermal absorption and ingestion may also contribute to body burden. Susceptible groups—such as children, the elderly and those with pre-existing respiratory conditions—are particularly vulnerable to low-level, long-term exposures. At a global scale, VOC emissions contribute to photochemical smog and secondary pollutant formation, underscoring the need for integrated policies that span occupational safety, indoor air quality standards and environmental regulation. Advances in real-time monitoring technologies, combined with source-reduction strategies and public awareness campaigns, offer practical avenues for mitigating risks and improving health outcomes.
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Volatile Organic Compounds and Health Implications publication trend
The graph below shows the total number of articles in volatile organic compounds and health implications across all publications each year (not limited to Nature Index journals).
Technical terms
Volatile Organic Compound (VOC): An organic chemical substance that vaporises easily at room temperature, contributing to air pollution and potential health hazards.
Indoor Air Quality (IAQ): A measure of the cleanliness and safety of air within enclosed spaces, influenced by pollutants such as VOCs, particulates and biological agents.
Hazardous Air Pollutant (HAP): A subset of air pollutants identified by regulatory agencies as capable of causing serious health effects, including cancer and reproductive disorders.
Endocrine-Immune-Neural Axis: The interconnected regulatory network through which chemical exposures can affect hormone balance, immune responses and nervous system function.
References
- Do Synthetic Fragrances in Personal Care and Household Products Impact Indoor Air Quality and Pose Health Risks?. Journal of Xenobiotics (2023).
- Extent of exposure to scented candles and prevalence of respiratory and non-respiratory symptoms amongst young university students. BMC Public Health (2023).
- Global emissions of VOCs from compressed aerosol products. Elementa: Science of the Anthropocene (2021).
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