Harmful Effects of Scented Candles: A Case for Avoiding Their Use Permanently
Scented candles and other scented products have been a popular choice for creating a pleasant ambience, but recent studies have highlighted their potential role as a significant source of indoor air pollution.
When burned, scented candles release volatile organic compounds (VOCs), fine particulate matter, and nanoparticles. These emissions come primarily from petroleum-based paraffin wax and synthetic fragrances used in many commercial scented candles. Even so-called natural alternatives like soy or beeswax candles, while somewhat safer, still release VOCs when burned, especially if they contain added fragrances[1].
These chemicals can linger in indoor air, particularly in poorly ventilated spaces, exacerbating exposure risks. People with asthma or chemical sensitivities can experience acute symptoms like asthma attacks or migraines just from exposure to the scent alone[1].
Air fresheners, diffusers, and other room fragrance products also release over 100 different chemical compounds. Studies have shown that nearly all fragrance products, including "green" and "organic" ones, release at least one hazardous chemical[2].
The health concerns associated with these emissions are significant. Scented candles emit toxic VOCs such as benzene and toluene, known carcinogens and respiratory irritants. They also emit fine particulate matter and nanoparticles similar to those found in diesel engine pollution, which can damage lungs, disrupt hormones, and increase risks of chronic diseases[1][2].
Nanoparticles released by scented candles contribute to inflammation, oxidative stress, and DNA damage[3]. Around one-third of people report some fragrance sensitivity, with symptoms ranging from migraines and asthma attacks to neurological impairment[4]. Babies and children, who breathe more air per body weight than adults, are particularly vulnerable to these indoor air pollutants.
Terpenes, a common component of essential oils used in fragrances, react with indoor ozone, forming secondary organic aerosols and ultrafine particles that degrade air quality[5].
While it may be difficult to avoid indoor pollution with any type of candle, experts recommend minimizing exposure by using candles made from non-petroleum waxes, avoiding synthetic fragrances, burning candles in well-ventilated spaces, and trimming wicks to reduce soot[3][4].
In summary, scented candles and other scented products are a noteworthy source of indoor air pollutants, contributing to potential respiratory, hormonal, and carcinogenic health risks. Choosing carefully formulated candles and proper usage practices can help mitigate these impacts.
References: 1. Bergin, M. (2021). The Indoor Air Quality of Scented Candles. Environmental Science & Technology. 2. Johnson, K. (2020). A Review of the Health Effects of Scented Candles and Air Fresheners. Journal of Environmental Health. 3. Environmental Protection Agency (EPA). (2019). Indoor Air Quality: A Guide for the Homeowner. 4. American Chemical Society (ACS). (2018). Fragrance Sensitivity and Chemical Sensitivity. 5. National Institute of Environmental Health Sciences (NIEHS). (2018). Indoor Air Pollution: A Major Health Risk.
- Recent research in environmental science has revealed that scented candles, popular for creating a pleasant ambience, are a significant source of indoor air pollution due to the release of volatile organic compounds (VOCs) and fine particulate matter.
- Studies suggest that these emissions, stemming from petroleum-based paraffin wax and synthetic fragrances, can linger in poorly ventilated spaces, posing health risks especially for individuals with asthma or chemical sensitivities.
- Air fresheners, diffusers, and other room fragrance products also release over a hundred chemical compounds, including hazardous chemicals even in "green" and "organic" products.
- The health effects from these emissions are concerning, as scented candles emit toxic VOCs like benzene and toluene, known carcinogens and respiratory irritants, similar to diesel engine pollution.
- Nanoparticles released by scented candles contribute to inflammation, oxidative stress, and DNA damage, while terpenes, a common component of essential oils used in fragrances, react with indoor ozone, degrading air quality.
- Around one-third of the population experiences some fragrance sensitivity, with symptoms ranging from headaches and allergies to more severe conditions like asthma attacks and neurological impairment.
- Experts advocate for minimizing exposure by using candles made from non-petroleum waxes, avoiding synthetic fragrances, burning candles in well-ventilated spaces, and trimming wicks to reduce soot.
- In the realm of health-and-wellness, fitness-and-exercise, and climate-change discussions, the impacts of indoor air pollution from scented candles and other products need to be considered, promoting the pursuit of cleaner, safer alternatives to enhance overall well-being.
