Bronte Wells
Household products can be a significant source of indoor air pollution, which is a leading cause of health issues and even premature death. Common household pollutants include mould, radon gas, volatile organic compounds (VOCs), flame retardants, and plasticizers. These pollutants can come from building materials, household cleaners, and everyday activities like cooking and smoking. VOCs, in particular, are found in a wide range of household products, from cleaning supplies to personal care items, and can cause respiratory problems, allergic reactions, and headaches. With at least sixty sources of household air pollution identified, it is important for individuals to be aware of the potential risks and take steps to improve indoor air quality, such as proper ventilation and choosing safer cleaning alternatives.
| Characteristics | Values |
|---|---|
| Pollutants | Radon gas, volatile organic compounds (VOCs), mould, flame retardants, combustibles, plasticizers, pesticides, asbestos, fragrances, formaldehyde, nitrogen dioxide, carbon monoxide, methane, black carbon, particulate matter, etc. |
| Sources | Building materials, household and cleaning products, construction materials, glues, varnishes, solvents, pesticides, new furniture, cleaners, disinfectants, cosmetics, mattresses, moth repellents, air fresheners, textiles, paints, etc. |
| Health Effects | Respiratory problems, allergic reactions, headaches, occupational asthma, nausea, loss of consciousness, poisoning, lung cancer, cardiovascular diseases, etc. |
| Prevention | Proper ventilation, sealing cracks and openings, installing radon mitigation systems, using carbon monoxide (CO) alarms, maintaining ventilation systems, using alternative cleaning products, etc. |
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What You'll Learn
Volatile organic compounds (VOCs)
VOCs are emitted by a wide array of household products, numbering in the thousands. Organic chemicals are widely used as ingredients in household products. Paints, varnishes, and wax all contain organic solvents, as do many cleaning, disinfecting, cosmetic, degreasing, and hobby products. Fuels are made up of organic chemicals. All of these products can release organic compounds while you are using them and, to some degree, when they are stored.
Some examples of household products containing VOCs include:
- Aerosol spray products, including health, beauty, and cleaning products
- Soaps, polishes, and grooming supplies
- Pesticides
- Moth repellents
- Air fresheners
- Textiles
- Adhesives
- Caulks
To protect your health, it is best to limit your exposure to products and materials that contain VOCs. If you think you may be having health problems caused by VOCs, try reducing levels in your home. If symptoms persist, consult with your doctor to rule out other serious health conditions that may have similar symptoms. People with respiratory problems such as asthma, young children, the elderly, and people with heightened sensitivity to chemicals may be more susceptible to irritation and illness from VOCs.
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Radon gas
Radon is a naturally occurring, colourless, odourless, and radioactive gas. It is produced from the natural radioactive decay of uranium, which is found in all rocks and soils. Radon can enter buildings through cracks in the floor, gaps in construction, windows, drains, or spaces around cables and pipes. It can also be released from building materials and household water.
Radon exposure is the number one cause of lung cancer in non-smokers. The radiation emitted by radon can damage cells, leading to cancer. Studies have confirmed that even low concentrations of radon, such as those commonly found in residential settings, pose health risks and contribute to lung cancer cases worldwide. The risk of lung cancer increases by about 16% for every 100 Bq/m3 increase in long-time average radon concentration.
The U.S. Environmental Protection Agency (EPA) estimates that one in every 15 American homes has radon levels above the recommended safety level. People who work in mines or caverns may also be at higher risk, depending on the number of hours exposed to elevated radon levels.
Testing is the only way to know if you are being exposed to radon. Radon levels indoors can be measured with a small passive detector. There are also well-tested, durable, and cost-efficient methods for preventing radon entry into new buildings and reducing radon levels in existing buildings. Passive systems of mitigation can reduce indoor radon levels by more than 50%addition of radon ventilation fans can further decrease levels.
To reduce radon levels in your home, you can seal any cracks or openings in the basement slab and install a radon mitigation system that vents radon gas outside. If building a new home, consider installing a passive sub-slab depressurization system. It is also important to maintain heating appliances and smoke ducts, and to avoid attached garages if possible.
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Cleaning products
A recent study by the Environmental Working Group analyzed 30 cleaning products and detected a total of 530 unique VOCs, with 193 of these identified as hazardous. These VOCs have the potential to cause respiratory system damage, increase cancer risk, and impact fetal development and reproduction. Other chemicals found in cleaning products include alkylphenol ethoxylates, a common surfactant ingredient that has been linked to adverse reproductive effects, and endocrine-disrupting chemicals such as cyclosiloxanes and phthalates, which are found in synthetic fragrances.
To reduce exposure to these harmful chemicals, it is recommended to choose fragrance-free, eco-friendly, or green cleaning products that are certified as meeting the US EPA's Safer Product Standards. Consumers can also look for third-party certifications, such as the EWG VERIFIED® mark, which indicates that a product is formulated to be safer for human health and the environment. Proper ventilation during and after cleaning is also crucial to minimizing exposure to indoor pollutants.
Additionally, simple household items such as baking soda, vinegar, and water can be effective cleaning agents, providing a safer and more affordable alternative to conventional cleaning products. By being mindful of the potential pollutants in cleaning products and taking steps to reduce their use or opt for safer alternatives, individuals can improve indoor air quality and protect their health and the environment.
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Cooking and heating
The burning of natural gas, for instance, produces various gases, including sulfur oxides, mercury compounds, particulate matter, and nitrogen oxides, primarily nitrogen dioxide. The use of biomass fuel, such as wood, crop residue, animal dung, and wood charcoal, is prevalent, with approximately 3 billion people relying on it for cooking or heating. This practice results in high levels of indoor air pollutants, including carbon particles, iron, lead, cadmium, silica, phenols, free radicals, carbon monoxide, nitrogen dioxide, sulfur dioxide, formaldehyde, hydrocarbon complexes, and other organic and inorganic substances.
The combustion of polluting fuels in open hearths or inefficiently vented stoves and space heaters is a major source of particulate matter pollution. Cooking with gas, wood, or electricity can generate indoor air pollution. Gas stoves, for example, can release toxic pollutants such as carbon monoxide and formaldehyde. Wood stoves and fireplaces used for cooking can produce high levels of indoor air pollution from wood smoke. Additionally, heating oil, fat, and other food ingredients at high temperatures can generate unhealthy air pollutants. Self-cleaning ovens, whether gas or electric, can also produce high levels of pollutants as food waste is burned.
To mitigate these issues, it is recommended to use clean fuels and technologies, such as solar, electricity, biogas, liquefied petroleum gas (LPG), natural gas, alcohol fuels, and biomass stoves that meet emission targets. Proper ventilation is crucial, and range hoods or exhaust fans can effectively remove pollutants. Maintaining and regularly servicing heating appliances and chimneys is essential to prevent the buildup of harmful substances.
Additionally, it is important to avoid using plastic dishes for cooking or heating food, as this can release toxic chemicals. Instead, opt for glass, ceramic, wood, or stainless steel alternatives. Reducing plastic food packaging and using reusable alternatives can also help minimize the presence of pollutants in the home.
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Building materials
New construction materials are not exempt from this issue either. Products like plywood, furniture, and other pressed-wood items often contain chemicals that off-gas, releasing formaldehyde and volatile organic compounds (VOCs) into the indoor air. Carpets, cleaning products, paints, adhesives, and solvents can also emit VOCs, formaldehyde, benzene, and other toxic chemicals over time. The use of multiple products simultaneously can lead to the mixing of various chemical fumes within the same space, further exacerbating the problem.
In addition to the direct release of pollutants, building materials can also contribute to indoor air pollution through the introduction of outdoor pollutants. For example, radon, a radioactive gas that forms in the ground due to the decay of uranium in rocks and soils, can enter buildings through cracks or gaps in structures. Inadequate ventilation or evacuation systems can lead to the accumulation of radon, particularly in basements or ground-level areas. According to the EPA, radon is responsible for about 21,000 lung cancer deaths in the United States annually.
Another concern is the presence of biological contaminants, such as mould, viruses, and allergens. Mould can be a significant health hazard, especially for individuals with asthma or other respiratory issues. Inadequate ventilation and moisture control contribute to the growth of mould, emphasising the importance of proper building maintenance and ventilation systems.
Furthermore, construction sites themselves generate various pollutants, including particulate matter (PM10 and PM2.5), gaseous pollutants like nitrogen oxides (NOx) and carbon monoxide (CO), and noise pollution. Demolition activities, heavy machinery operation, and material transport contribute to the release of these pollutants. Fine particles, such as those found in construction dust, can penetrate deep into the lungs and even enter the bloodstream, causing chronic illnesses and inflammation.
To mitigate the impact of building materials on indoor air quality, it is essential to choose low-emission or no-emission products whenever possible. Proper ventilation and moisture control are also crucial in reducing the concentration of pollutants and preventing the growth of biological contaminants. When dealing with older buildings that may contain asbestos or lead, it is recommended to follow guidelines from the U.S. Environmental Protection Agency or seek professional assistance to ensure safe handling and removal.
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Frequently asked questions
Common household products that release pollutants include cleaning supplies, such as soaps, polishes, and grooming supplies, as well as building materials, paints, and pesticides.
Pollutants from household products can have adverse health effects, including irritation to the eyes and throat, headaches, respiratory problems, nausea, and in severe cases, even death. Chronic exposure to pollutants can lead to long-term health issues such as asthma, respiratory illnesses, and in some cases, cancer.
To reduce exposure to household pollutants, it is important to maintain good ventilation in your home, avoid using air fresheners, and opt for natural cleaning alternatives, such as baking soda, vinegar, and warm water. When purchasing cleaning products, choose those with reduced or no volatile organic compounds (VOCs), fragrances, irritants, and flammable ingredients.
Yes, vulnerable groups such as young children, the elderly, and people with asthma, allergies, or compromised immune systems are more susceptible to the adverse effects of household pollutants. Additionally, women and children, who typically spend more time on household chores, bear a greater health burden from exposure to pollutants from cooking, collecting firewood, and using inefficient stoves.
